马奇英

       马奇英，浙江大学求是讲席教授、博士生导师，美国科学促进会会士，美国土壤学会会士，美国农学会会士、国际环境植物学家学会会士。1991年博士毕业于美国科罗拉多州立大学。1991年~1993年在美国俄亥俄州立大学从事博士后研究工作，1994年起受聘佛罗里达大学任助理教授直至终身教授，2020年起放弃美国终身教职加盟浙江大学。长期从事土壤重金属特别是砷的生物地球化学与环境修复技术方面的研究，是国际著名土壤化学家，也是环境生态领域最具影响力的华人科学家之一。入选科睿唯安2019年度“全球高被引科学家”，爱思唯尔2020年度、2021年度和2022年度“中国高被引科学家”，斯坦福大学2020年度、2021年度和2022年度“全球前2%顶尖科学家”，全球学者库2022年度“全球顶尖前10万科学家”榜单。2001年在Nature报道了世界上第一个砷超积累植物蜈蚣草，大大推动了国际土壤砷污染植物修复的研究与应用。相关研究成果在Nature、Environ Sci Technol等发表SCI学术论文400余篇；据Web of Science，总引次数2.5余万次，H指数为78。出版全英文学术专著（含编写章节）30余部；获得美国土壤污染修复技术专利5项。并受邀担任多个国际会议主席或副主席，先后在国际、国内学术会议作大会报告200余次。

       现任Soil & Environmental Health执行主编，Chemosphere副主编，Environment International和生态环境学报编委。曾任Critical Reviews in Environmental Science and Technology主编，Journal of Environmental Quality副主编，Environment Science & Technology、Journal of Hazardous Materials、Science of the Total Environment、Environmental and Experimental Botany和Environmental Research编委。荣获英国皇家地理学会和欧洲发现网络发现奖（Discovery Award, 2001年），美国农学会会士（Fellow，2002年），美国土壤学会会士（Fellow，2003年），美国农业部秘书奖（Secretary's Award，2004年），辽宁省自然科学奖一等奖（2/5，2008年），美国科学促进会会士（Fellow，2012年），环境植物学家学会会士（Fellow，2018年），Environment Science & Technology卓越审稿人奖（Excellence in Review Award，2012年）和最佳审稿人奖（Superior Reviewer Award，2017年），Journal of Environmental Quality杰出审稿人奖（Outstanding Review Award，2016年）。担任中国生态学会污染生态专业委员会委员，国家自然科学基金委项目评审专家，曾任美国土壤学会土壤与环境质量专业委员会主任，美国佛罗里达Gamma Sigma Delta学会主席，美国国家科学基金会、美国科学促进会、美国农业部项目评审专家。

主要科研项目

[1] 国家自然科学基金重点项目(42330703)，岩溶地质高背景土壤重金属的生物有效性与人体健康风险，2024.01~2028.12，227万，主持

[2] 国家自然科学基金面上项目(42077124)，耦合肠细胞技术研究污染土壤中铬人体生物有效性的新型体外方法，2021.01~2024.12，57万，主持

[3] 国家自然科学基金重点项目(21637002)，土壤-水稻体系中砷迁移与阻控及其健康风险研究，2017.01~2021.12，291万，主持

[4] 国家自然科学基金面上项目(41673101)，新型耦合体外方法对污染土壤中铅的人体生物有效性研究，2017.01~2020.12，71万，主持

[5] 国家重点研发计划项目(2016YFD0800801)，重金属超累积植物种质创新、规模化繁殖技术与设备研制，2016.01~2020.12，300万，课题负责人

[6] 国家重点研发计划项目(2016YFD0800807)，设施农业镉砷污染土壤的植物高效萃取修复技术体系研究与示范，2016.01~2020.12，50万，子课题负责人

发表学术论文

2020 (29)  

1. Chen, J., LD. Garbinski, B Rosen, J Zhang, P Xiang & LQ. Ma. 2020. Organoarsenical compounds: Occurrence, toxicology and biotransformation. Critical Reviews in Environmental Science and Technology 50: 217-243. (PDF)

2. Chen, Y., A Juhasz, H Li, C Li, LQ. Ma & X Cui. 2020. The influence of food on the in vivo bioavailability of DDT and its metabolites in soil. Environmental Science & Technology 54: 5003-5010.（PDF）

3. Chen, Y., M Guo, R Liu, LQ. Ma & X Cui. 2020. Effects of novel brominated flame retardants and metabolites on cytotoxicity in human umbilical vein endothelial cells. Chemosphere 253: 126653. (PDF)

4. Cui, D., J Bi, ZN. Zhang, MY. Li, YS. Qin, P Xiang & LQ. Ma. 2020. Organophosphorus flame retardant TDCPP-induced cytotoxicity and associated mechanisms in normal human skin keratinocytes. Science of the Total Environment 726: 138526. (PDF)

5. Da Silva, EB., P Gao, M Xu, D Guan, X Tang & LQ. Ma. 2020. Background concentrations of trace metals As, Ba, Cd, Co, Cu, Ni, Pb, Se, and Zn in 214 Florida urban soils: Different cities and land uses. Environmental Pollution 264: 114737. (PDF)

6. Deng, F., X Liu, Y Chen, B Rathinasabapathi, C Rensing, J Chen, J. Bi, P, Xiang & LQ Ma. 2020. Aquaporins mediated arsenite transport in plants: Molecular mechanisms and applications in crop improvement. Critical Reviews in Environmental Science and Technology 50:1613–1639.  (PDF)

7. Guo, Y, Laux, SJ, Burdier, M, Ma, LQ, Townsend, TG.  2020. Polycyclic aromatic hydrocarbons in processed yard trash. Waste Management & Research 38:825-830.  (PDF)

8. Han Y, Jia M, Wang S, Deng J, Shi X, Chen D, Chen Y, Ma L. 2020. Arsenic accumulation and distribution in Pteris vittata fronds of different maturity: Impacts of soil As concentrations. Science of the Total Environment 715:135298. (PDF)

9. He, SX., X Wang, X Wu, YL. Yin & LQ. Ma. 2020. Using rice as a remediating plant to deplete bioavailable arsenic from paddy soils. Environment International 141: 105799. (PDF)

10. Hua, CY., JX. Chen, Y Cao, HB. Li, Y Chen & LQ. Ma. 2020. Pteris vittata coupled with phosphate rock effectively reduced As and Cd uptake by water spinach from contaminated soil. Chemosphere 247: 125916. (PDF)

11. Li, H., M Li, D Zhao, J Li, S Li, P Xiang, AL. Juhasz & LQ. Ma. 2020. Arsenic, lead, and cadmium bioaccessibility in contaminated soils: Measurements and validations. Critical Rev. Environmental Science & Technology 50:1303–1338. (PDF)

12. Li, HB., JY. Wang, XQ. Chen, YP. Li, J Fan, JH. Ren, XS. Luo, AL. Juhasz & LQ. Ma. 2020. Geogenic nickel exposure from food consumption and soil ingestion: A bioavailability based assessment. Environmental Pollution 265: 114873. (PDF)

13. Li, K., Z Liu, X Shi, T Wei, LQ. Ma & J Luo. 2020. Novel in situ method based on diffusive gradients in thin-films with lanthanum oxide nanoparticles for measuring As, Sb, and V and in waters. Journal of Hazardous Materials 383: 121196. (PDF)

14. Li, SW., M Chang, H Li, XY. Cui & LQ. Ma. 2020. Chemical compositions and source apportionment of PM2.5 during clear and hazy days: Seasonal changes and impacts of Youth Olympic Games. Chemosphere 256: 127163. (PDF)

15. Li, SW., MY. Li, HJ. Sun, HB. Li & LQ. Ma. 2020. Lead bioavailability in different fractions of mining- and smelting-contaminated soils based on a sequential extraction and mouse kidney model. Environmental Pollution 262: 114253. (PDF)

16. Li, X., D Sun, H Feng, J Chen, Y Chen, H Li, Y Cao & LQ. Ma. 2020. Efficient arsenate reduction in As-hyperaccumulator Pteris vittata are mediated by novel arsenate reductases PvHAC1 and PvHAC2. Journal of Hazardous Materials 399: 122895. (PDF)

17. Liu, G., L Liao, Z Dai, Q Qi, J Wu, LQ. Ma, C Tang & J Xu. 2020. Organic adsorbents modified with citric acid and Fe3O4 enhance the removal of Cd and Pb in contaminated solutions. Chemical Engineering Journal 395: 125108. (PDF)

18. Ma, Q., W Zhao, DX. Guan, HH. Teng, J Ji & LQ. Ma. 2020. Comparing CaCl2, EDTA and DGT methods to predict Cd and Ni accumulation in rice grains from contaminated soils. Environmental Pollution 260: 114042. (PDF)

19. Sun, D., H Feng, X Li, H Ai, S Sun, Y Chen, G Xu, B Rathinasabapathi, Y Cao & LQ. Ma. 2020. Expression of new Pteris vittata phosphate transporter PvPht1;4 reduces arsenic translocation from the roots to shoots in tobacco plants. Environmental Science & Technology 54:1045–1053. (PDF)

20. Wu YY., J Lou, X Sun, LQ. Ma, JY. Wang, MY. Li, H Sun, HB. Li & L Huang. 2020. Linking elevated blood lead level in urban school-aged children with bioaccessible lead in neighborhood soil. Environmental Pollution 261: 114093. (PDF)

21. Xiang, P., K Wang, J Bi, M Li, RW. He, D Cui & LQ. Ma. 2020. Organic extract of indoor dust induces estrogen-like effects in human breast cancer cells. Science of the Total Environment 726: 138505. (PDF)

22. Xu, W., P Xiang, X Liu & LQ. Ma. 2020. Closely-related species of hyperaccumulating plants and their ability in accumulation of As, Cd, Cu, Mn, Ni, Pb and Zn. Chemosphere 251: 126334. (PDF)

23. Xu, W., Y. Cao, Y Chen, P Xiang, X Liu & LQ. Ma. 2020. Response to comment on “Closely-related species of hyperaccumulating plants and their ability in accumulation of As, Cd, Cu, Mn, Ni, Pb and Zn”. Chemosphere 260:128037. (PDF)

24. Yan, K., Z Dong, R Naidu, Y Liu, Y Li, A Wijayawardena, P Sanderson, H Li & LQ Ma. 2020. Comparison of in vitro models in a mice model and investigation of the changes in Pb speciation during Pb bioavailability assessments. Journal of Hazardous Materials 388:121744. (PDF)

25. Yang S., S Gu, M He, X Tang, LQ Ma, J Xu & X Liu. 2020. Policy adjustment impacts Cd, Cu, Ni, Pb and Zn contamination in soils around e-waste area: Concentrations, sources and health risks. Science of the Total Environment 741: 140442. (PDF)

26. Yin DX., W Fang, DX. Guan, PN. Williams, E Moreno-Jiménez, Y Gao, FJ. Zhao, LQ. Ma, H Zhang & J Luo. 2020. Localized intensification of arsenic release within the emergent rice rhizosphere. Environmental Science & Technology 54: 3138-3147. (PDF)

27. Zhang H, Wang Q, Xu Q, Xu W, Yang S, Liu X, Ma L.  2020.  Sequential fractionation and plant uptake of As, Cu, and Zn in a contaminated riparian wetland. Environmental Pollution 268:115734. (PDF)

28. Zhang, R., Q Zhang, LQ. Ma & X Cui. 2020. Effects of food constituents on absorption and bioaccessibility of dietary synthetic phenolic antioxidant by Caco-2 cells. Journal of Agricultural and Food Chemistry 68: 4670-4677. (PDF)

29. Zhao, D., J Wang, D Yin, M Li, X Chen, AL. Juhasz, J Luo, A Navas-Acien, H Li & LQ. Ma. 2020. Arsanilic acid contributes more to total arsenic than roxarsone in chicken meat from Chinese markets. Journal of Hazardous Materials 383: 121178. (PDF)

2019 (22)  

30. Abid, R, M. Manzoor, LM. De Oliveira, E da Silva, B Rathinasabapathi, C Rensing, S Mahmood, X Liu, LQ. Ma. 2019. Interactive effects of As, Cd and Zn on their uptake and oxidative stress in As-hyperaccumulator Pteris vittata. Environmental Pollution 248:756-762.345. (PDF)

31. Cao, Y, H Feng, D Sun, G Xu, B Rathinasabapathi, Y Chen, and LQ. Ma. 2019. Heterologous expression of Pteris vittata phosphate transporter Pvpht1;3 enhances arsenic translocation to and accumulation in tobacco shoots. Environmental Science & Technology 2019, 53:10636–10644. (PDF)

32. Chen,Y., C. Hua, JX Chen, B Rathinasabapathi, Y Cao, and LQ. Ma. 2019. Expressing arsenite antiporter PvACR3;1 in rice (Oryza sativa L.) decreases inorganic arsenic content in rice grains. Environmental Science & Technology 53, 10062−10069. (PDF)

33. da Silva a, EB., WA. Mussoline, AC Wilkie, LQ. Ma. 2019. Arsenic removal and biomass reduction of As-hyperaccumulator Pteris vittata: Coupling ethanol extraction with anaerobic digestion. Science of the Total Environment 666:205–211. (PDF)

34. da Silva a, EB., WA. Mussoline, AC Wilkie, LQ. Ma. 2019. Anaerobic digestion to reduce biomass and remove arsenic from As-hyperaccumulator Pteris vittata.Environmental Pollution 250:23-28. (PDF)

35. Deng, H, M Luo, X Shi, PN. Williams, K Li, M Liu, W Fan, T Xiao, Y Chen, LQ. Ma, and J Luo. 2019. In situ measurement of thallium in natural waters by a technique based on diffusive gradients in thin films containing a δ‑MnO2 gel layer. Analytical Chemistry 91:1344−1352. (PDF)

36. Han, Y., D Yin, M Jia, S Wang, Y Chen, B Rathinasabapathi, D Chen, LQ. Ma. 2019. Arsenic-resistance mechanisms in bacterium Leclercia adecarboxylata strain As3-1: Biochemical and genomic analyses. Science of the Total Environment 690:1178–1189. (PDF)

37. Huang, L., L Liu, T Zhang, D Zhao, H Li, H Sun, PL. Kinney, M Pitiranggon, S Chillrud, LQ Ma, A Navas-Acien, J Bi. B Yan. 2019. An interventional study of rice for reducing cadmium exposure in a Chinese industrial town. Environment International 122:301–309. (PDF)

38. Gao, P., Y. Liu, Y. Wang, X. Liu, Z. Wang, LQ. Ma. 2019.  Spatial and temporal changes of P and Ca distribution and fractionation in soil and sediment in a karst farmland-wetland system. Chemosphere 220:644-650. (PDF)

39. Gao, P., EB. da Silva, T Townsend, X Liu, LQ Ma. 2019.  Emerging PAHs in urban soils: Concentrations, bioaccessibility, and spatial distribution. Science of the Total Environment 670:800–805.  (PDF)

40. Gao, P., M Xu, Y Liu, EB. da Silva, T Townsend, P Xiang, LQ Ma. 2019. Emerging and legacy PAHs in urban soils of four small cities: Concentrations, distribution, and sources. Science of the Total Environment 685:463–470.  (PDF)

41. Jia, M, N Tang, Y Cao, Y Chen, YH Han, LQ. Ma. 2019.  Efficient arsenate reduction by As-resistant bacterium Bacillus sp. strain PVR-YHB1-1: Characterization and genome analysis. Chemosphere 218:1061-1070. (PDF) 

42. Li, C, X Cui, Y Chen, C Liao, LQ. Ma. 2019.  Synthetic phenolic antioxidants and their major metabolites in human fingernail. Environmental Research 169:308–314.  (PDF)

43. Li, H., M Li, D Zhao, J Li, S Li, AL. Juhasz, NT. Basta, Y Luo, and LQ. Ma. 2019. Oral bioavailability of As, Pb, and Cd in contaminated soils, dust, and foods based on animal bioassays: a review. Environmental Science & Technology 53, 10545−10559. (PDF)

44. Li, K., Z Liu, X Shi, T Wei, LQ. Ma, J Luo. 2020. Novel in situ method based on diffusive gradients in thin-films with lanthanum oxide nanoparticles for measuring As, Sb, and V and in waters. Journal of Hazardous Materials  383:121196. (PDF)

45. Li., Y., AL. Juhasz, LQ. Ma, X. Cui. 2019. Inhalation bioaccessibility of PAHs in PM2.5: Implications for risk assessment and toxicity prediction. Science of the Total Environment 650:56–64. (PDF)

46. Li, M, P Wang, J Wang, X Chen, D Zhao, D Yin, J Luo, AL Juhasz, H Li, and LQ. Ma. 2019. Arsenic concentrations, speciation, and localization in 141 cultivated market mushrooms: implications for arsenic exposure to humans. Environmental Science & Technology 53:503−511.332. (PDF)

47. Liu, Y, P Gao, J Su, EB. da Silva, LM. de Oliveira, T Townsend, P Xiang, LQ. Ma. 2019. PAH concentrations in urban soils of two Florida cities: Background concentrations, distribution and sources. Chemosphere 214:220-227. 331. (PDF)

48. Liu, ZD, HB Li, X Fang, H Zhang, LQ. Ma, and J Luo. 2019. Investigating lead species and bioavailability in contaminated soils: coupling DGT technique with artificial gastrointestinal extraction and in vivo bioassay. Environmental Science & Technology 53:5717−5724.330. (PDF)

49. Manzoor, M., R. Abid, B. Rathinasabapathi, LM. De Oliveira, E. da Silva, F. Deng, C. Rensing, M. Arshad, I. Gul, P. Xiang, LQ. Ma. 2019. Metal tolerance of arsenic-resistant bacteria and their ability to promote plant growth of Pteris vittata in Pb-contaminated soil. Science of the Total Environment 660: 18–24.329. (PDF)

50. Zhao,D., J Wang, D Yin, M Li, X Chen, AL. Juhasz, J Luo, A Navas-Acien, H Li, LQ. Ma. Arsanilic acid contributes more to total arsenic than roxarsone in chicken meat from Chinese markets. Environment International 130:104875. (PDF)

51. Zhu, X., M Li, XQ Chen, J Wang, L Li, C Tu, YM Luo, HB Li, LQ. Ma. 2019. As, Cd, and Pb relative bioavailability in contaminated soils: Coupling mouse bioassay with UBM assay. Environment International 130: 104875. (PDF)

2018 (30)  

52. Cao, Y; Sun, D; Chen, J; Mei, H; Ai, H; Xu, G; Chen, Y; Ma, LQ. 2018. Phosphate transporter PvPht1;2 enhances phosphorus accumulation and plant growth without impacting arsenic uptake in plants. Environmental Science & Technology 52:3975−3981.326. (PDF)

53. Chen, Y., Y Cao, B Rathinasabapathi, and LQ. Ma. 2018. Novel genes of hyperaccumulator ferns in arsenic tolerance, uptake, and metabolism: implications for crop improvement. In: Current Advances in Fern Research.  Helena Fernández (ed).  Springer  361-380. 325. (PDF)

54. Da Silva, EB., LM. de Oliveira, AC. Wilkie, Y. Liu, LQ. Ma. 2018a. Arsenic removal from As-hyperaccumulator P. vittata biomass: Coupling extraction with precipitation. Chemosphere 193:288-294.  (PDF)

55. Da Silva, EB., LM. de Oliveira, AC. Wilkie, Y. Liu, LQ. Ma. 2018b. Arsenic removal by As-hyperaccumulator Pteris vittata from two contaminated soils: A 5-year study. Chemosphere 206: 736-741.  (PDF)

56. Da Silva, EB., S. Li, LM. de Oliveira, J Gress, X. Dong, AC. Wilkie, T Townsend, LQ. Ma. 2018c. Metal leachability from coal combustion residuals under different pHs and liquid/solid ratios. Journal of Hazardous Materials  341:66–74. 322. (PDF)

57. De Oliveira, LM, D. Suchismita, EB. da Silva, P Gao, L. Vardanyan, Y. Liu, and LQ. Ma. 2018a. Interactive effects of chromate and arsenate on their uptake and speciation in Pteris ensiformis. Plant Soil 422:515–526. (PDF)

58. De Oliveira, LM, S Das, EB. da Silva, P Gao, J Gress, Y Liu and LQ. Ma. 2018 b. Metal concentrations in traditional and herbal teas and their potential risks to human health. Science of the Total Environment 633:649-657.  (PDF)

59. Fang, W., PN. Williams, X Fang, C. Amoah-Antwi, D. Yin, G Li, LQ. Ma, J Luo. 2018. Field-scale heterogeneity and geochemical regulation of arsenic, iron, lead, and sulfur bioavailability in paddy soil. Environmental Science & Technology 52:12098−12107. (PDF)

60. Gao, P., H. Li, CP. Wilson, TG. Townsend, P. Xiang, Y. Liu, LQ. Ma. 2018. Source identification of PAHs in soils based on stable carbon isotopic signatures. Critical Rev. Environmental Science & Technology 48: 923-948. (PDF)

61. Gao, P., E. da Silva, L. Hou, ND. Denslow, P. Xiang, LQ. Ma. 2018. Human exposure to polycyclic aromatic hydrocarbons: Metabolomics perspective. Environment International 119: 466–477.317. (PDF)

62. Guan DX, YQ Li, NY Yu, GH Yu, S Wei, H Zhang, W Davison, XY Cui, LQ. Ma, J Luo. 2018. In situ measurement of perfluoroalkyl substances in aquatic systems using diffusive gradients in thin-films technique. Water Research 144:162-171.316. (PDF)

63. Guan DX, X. Wang, H Xu, L Chen, P Li, and LQ. Ma. 2018. Temporal and spatial distribution of Microcystis biomass and genotype in bloom areas of Lake Taihu. Chemosphere 209:730-738.315. (PDF)

64. Hadayat, N., L.M. De Oliveira, E. Da Silva, L. Han, M. Hussain, X. Liu, LQ. Ma. 2018. Assessment of trace metals in five most-consumed vegetables in the US: Conventional vs. organic. Environmental Pollution 243:292-300.314. (PDF)

65. Han, C., PN. Williams, J Ren, Z Wang, X Fang, D Xu, X Xie, J Geng, LQ. Ma and Jun Luo. 2018. In situ sampling and speciation method for measuring dissolved phosphite at ultratrace concentrations in the natural environment. Water Research 137:281-289.313. (PDF)

66. He, R.W., YZ Li, P Xiang, C Li, X. Cui, and LQ. Ma. 2018. Impact of particle size on distribution and human exposure of flame retardants in indoor dust. Environmental Research 162:166-172. (PDF)

67. Li, HB, Li J，Li S, LQ. Ma. 2018. Food influence on lead relative bioavailability in contaminated soils: Mechanisms and health implications. Journal of Hazardous Materials 358:427–433.  (PDF)

68. Liu, Y., P Gao, J Su, EB. da Silva, LM. de Oliveira, T Townsend, P Xiang, LQ. Ma. 2018. PAHs in urban soils of two Florida cities: Background concentrations, distribution, and sources. Chemosphere 214:220-227. (PDF)

69. Liu R, R He, X Cui, LQ. Ma. 2018. Impact of particle size on distribution, bioaccessibility, and cytotoxicity of polycyclic aromatic hydrocarbons in indoor dust. Journal of Hazardous Materials 357:341–347. (PDF)

70. Liu, X. HY Feng, JW Fu, Y. Chen, Y. Liu, and LQ. Ma. 2018. Arsenic-induced nutrient uptake in As-hyperaccumulator Pteris vittata and their potential role to enhance plant growth. Chemosphere 198:425-431. (PDF)

71. Moreira, Leo J.D., EB. da Silva, MPF. Fontes, X Liu, and LQ. Ma. 2018. Speciation, bioaccessibility and potential risk of chromium in Amazon forest soils. Environmental Pollution 239:384-391. 307. (PDF)

72. Peng, A., J. Gao, Z. Chen, Y. Wang, H. Li, LQ. Ma, and C. Gu. 2018. Interactions of gaseous 2‑chlorophenol with Fe3+-saturated montmorillonite and their toxicity to human lung cells. Environmental Science & Technology 52:5208−5217. (PDF)

73. Shi, X., W Fang, N Tang, PN. Williams, X Hu, Z Liu, D Yin, LQ. Ma, J Luo.  2018. In Situ Selective Measurement of SeIV in Waters and Soils: Diffusive Gradients in Thin-Films with Bi-Functionalized Silica Nanoparticles.  Environmental Science & Technology 52, 14140−14148. (PDF)

74. Wang, N, J Yua, Y Zhao, Z Chang, X Shi, H Li, LQ. Ma. 2018. Straw enhanced CO2 and CH4 but decreased N2O emissions from flooded paddy soils: Changes in microbial community compositions. Atmospheric Environment 200:587-593. (PDF)

75. Wang, Z, L Hou, Y Liu, Y Wang, and LQ. Ma. 2018. Metal contamination in a riparian wetland: Distribution, fractionation and plant uptake. Chemosphere 200:587-593. (PDF)

76. Xiang, P., Y. Jia, K. Wang, M-Y Li, Y-S Qin, R-W He, P Gao, Y Liu, X Liu, and Ma, LQ. Ma. 2018. Water extract of indoor dust induces tight junction disruption in normal human corneal epithelial cells. Environmental Pollution 243:301-307. (PDF)

77. Xiang, P., R He, R Liu, K Li, P Gao, X Cui, H Li, Y Liu, LQ. Ma. 2018. Cellular responses of normal (HL-7702) and cancerous (HepG2) hepatic cells to dust extract exposure. Chemosphere 193:1189-1197. (PDF)

78. Xiang, P., S Wang, M He, Y Han, Z Zhou, D Chen, M Li, LQ. Ma. 2018b. The in vitro and in vivo biocompatibility evaluation of electrospunre combinant spider silk protein/PCL/gelatin for small caliber vascular tissue engineering scaffolds. Colloids and Surfaces B: Biointerfaces 163:19–28. (PDF)

79. Zhang, R, C. Li, Y. Li, X. Cui, and LQ. Ma. 2018. Determination of 2,6-di-tert-butyl-hydroxytoluene and its transformation products in indoor dust and sediment by gas chromatography–mass spectrometry coupled with precolumn derivatization. Science of the Total Environment 619–620:552–558. (PDF)

80. Zhao, D., J-Y Wang, N. Tang, D-X Yin, J Luo, P Xiang, AL. Juhasz, H-B L, and LQ. Ma. 2018. Coupling bioavailability and stable isotope ratio to discern dietary and nondietary contribution of metal exposure to residents in mining-impacted areas. Environment International 120:563–571. (PDF)

81. Zhao, D., AL. Juhasz, J Luo, H-B Li, and LQ. Ma. 2018. Metals in paints on chopsticks: Solubilization in simulated saliva, gastric, and food solutions and implication for human health. Environmental Research 167:299–306. (PDF)

82. Zou, YT, Z. Fang, Y. Li, R. Wang, H Zhang, KC. Jones, XY Cui, XY Shi, D Yin, C Li, ZD Liu, LQ. Ma, and J Luo. 2018. Novel Method for in Situ Monitoring of Organophosphorus Flame Retardants in Waters. Analytical Chemistry 90, 10016−10023.  (PDF)

2017 (31)  

83. Cao, Y. D Sun, H Ai, H Mei, X Liu, S Sun, G Xu, Y Liu, Y Chen, and LQ. Ma. 2017. Knocking out OsPT4 gene decreases arsenate uptake by rice plants and inorganic arsenic accumulation in rice grains. Environmental Science & Technology 51,12131-12138. (PDF)

84. Chen, Y., YH. Han, Y. Cao, YG. Zhu, B. Rathinasabapathi, and LQ. Ma. 2017. Heterologous expression of Pteris vittata arsenite antiporter PvACR3;1 reduces arsenic accumulation in plant shoots. Environmental Science & Technology 51,10387−10395. (PDF)

85. Chen, Y., Hua, C; Jia, M; Fu, J; Liu, X; Han, YH; Liu, Y; Rathinasabapathi, B; Cao, Y, and LQ. Ma. 2017. Arsenic transport in rice and biological solutions to reduce arsenic risk from rice. Frontiers in Plant Science 8: 268. (PDF)

86. Das, S., de Oliveira, LM., E.B. da Silva, Y. Liu and LQ. Ma. 2017. Fluoride concentrations in traditional and herbal teas: health risk assessment. Environmental Pollution 231:779-784. (PDF)

87. Das, S., de Oliveira, LM., E.B. da Silva, and LQ. Ma. 2017. Arsenate and fluoride enhanced each other’s uptake in As-sensitive plant Pteris ensiformis. Chemosphere  180:448-454. (PDF)

88. de Oliveira, LM., S. Das, J Gress, B Rathinasabapathi, Y Chen, and LQ. Ma. 2017. Arsenic uptake by lettuce from As-contaminated soil remediated with Pteris vittata and organic amendment. Chemosphere  176:249-254. (PDF)

89. Fu, J. W., X. Liu, Y. H. Han, H. Mei, Y. Cao, L. M. de Oliveira, Y. Liu, B. Rathinasabapathi, Y. Chen, and L. Q. Ma. 2017. Arsenic-hyperaccumulator Pteris vittata efficiently solubilized phosphate rock to sustain plant growth and As uptake. Journal of Hazardous Materials 330: 68–75. (PDF)

90. Guan, D-X., J-L Zheng, J. Luo, H. Zhang, W. Davison, and LQ. Ma. 2017. A diffusive gradients in thin-films technique for the assessment of bisphenols desorption from soils. Journal of Hazardous Materials 331: 321-328. (PDF)

91. Gu, X., Z. Liu, X. Wang, J. Luo, H. Zhang, W. Davison, LQ. Ma, Y. Xue. 2017. Coupling biological assays with diffusive gradients in thin-films technique to study the biological responses of Eisenia fetida to cadmium in soil. Journal of Hazardous Materials 339: 340-346. (PDF)

92. Han, Y. H., J. W. Fu, P. Xiang, Y. Cao, B. Rathinasabapathi, Y. Chen, and LQ Ma. 2017. Arsenic and phosphate rock impacted the abundance and diversity of bacterial arsenic oxidase and reductase genes in rhizosphere of As-hyperaccumulator Pteris vittata. Journal of Hazardous Materials 321: 146–153. (PDF)

93. Han, Y. H., X. Liu, B. Rathinasabapathi, H Li, Y Chen, and LQ. Ma. 2017. Mechanisms of efficient As solubilization in soils and As accumulation by As-hyperaccumulator Pteris vittata. Environmental Pollution 227: 569-577. (PDF)

94. Han, Y. H., M.R Jia, X. Liu, Y. Zhu, Y. Cao, D.L Chen, Y Chen, and LQ. Ma. 2017. Bacteria from the rhizosphere and tissues of As-hyperaccumulator Pteris vittata and their role in arsenic transformation. Chemosphere 186:599-606. (PDF)

95. Li C, Zhang R, Li Y, Zhang S, Gao P, Cui X, Ma LQ.  2017. Relative bioavailability and bioaccessibility of PCBs in soils based on a mouse model and Tenax-improved physiologically-based extraction test. Chemosphere 186: 709-715. (PDF)

96. Li, H., X. Dong, E.B. da Silva, L.M. de Oliveira, Y. Chen, LQ. Ma. 2017. Mechanisms of metal sorption by biochars: Biochar characteristics and modifications. Chemosphere 178:466-478. (PDF)

97. Li, H., J Li, D Zhao, C Li, X Wang, HJ Sun, A Juhasz, LQ Ma. 2017. Arsenic relative bioavailability in rice using a mouse arsenic urinary excretion bioassay and its application to assess human health risk. Environmental Science & Technology 51:4689−4696. (PDF)

98. Li, K.; Sun, J; Yang, J; Roberts, S; Zhang, X-X; Cui, X; Wei, S; Ma, LQ. 2017. Molecular mechanisms of perfluorooctanoate-induced hepatocyte apoptosis in mice using proteomic techniques. Environmental Science & Technology 51:11380−11389. (PDF)

99. Li, K., P. Gao, P.  Xiang, X. Zhang, X. Cui, and L.  Q. Ma. 2017. Molecular mechanisms of PFOA-induced toxicity in animals and humans: Implications for health risks. Environment International 99: 43–54. (PDF)

100. Li, SW, HJ Sun, G Wang, Xin-Yi Cui, A. Juhasz, HB Li and LQ. Ma.  2017. Lead relative bioavailability in soils based on different endpoints of a mouse model. Journal of Hazardous Materials 326:94–100. (PDF)

101. Li, SW, X. Liu, H. J. Sun, M. Y. Li, D. Zhao, J. Luo, H. B. Li, and L.Q. Ma.  2017. Effect of phosphate amendment on relative bioavailability and bioaccessibility of lead and arsenic in contaminated soils. Journal of Hazardous Materials 339: 256–263. (PDF)

102. Liu, X., JW. Fu, N. Tang, E. Da Silva, B.L. Turner, Y. Cao, Y. Chen, and L. Q. Ma. 2017. Phytate induced arsenic uptake and plant growth in arsenic-hyperaccumulator Pteris vittata. Environmental Pollution 226:212-218. (PDF)

103. Liu, X., JW. Fu, E. Da Silva, XX. Shi, Y. Cao, B. Rathinasabapathi, Y. Chen, and L. Q. Ma. 2017. Microbial siderophores and root exudates enhanced goethite dissolution and Fe/As uptake by As-hyperaccumulator Pteris vittata. Environmental Pollution 223: 230-237. (PDF)

104. Sun, HJ, Li SW, Li C, Wang WQ, Li HB, Ma LQ. 2017. Thyrotoxicity of arsenate and arsenite on juvenile mice at organism, subcellular, and gene levels under low exposure. Chemosphere 186:580-587. (PDF)

105. Wang, N., ZZ. Chang, XX. Xue, JG. Yu, XX., Shi, LQ. Ma, and HB. Li. 2017. Biochar decreases nitrogen oxide and enhances methane emissions via altering microbial community composition of anaerobic paddy soil. Science of the Total Environment 581–582: 689–696. (PDF)

106. Xiang, P., R-Y Liu, H-J Sun, Y-W Yang, X-Y Cui, LQ. Ma. 2017. Effects of novel brominated flame retardant TBPH and its metabolite TBMEHP to human vascular endothelial cells: implication for human health risks. Environmental Research  156:834–842. (PDF)

107. Xiang, P., R-Y Liu,  C. Li, P. Gao, X-Y Cui, LQ. Ma. 2017.Effects of organophosphorus flame retardant TDCPP on normal human corneal epithelial cells: Implications for human health. Environmental Pollution  230:22-30. (PDF)

108. Yin, D., X Wang, B Peng, C Tan, LQ. Ma. 2017. Effect of biochar and Fe-biochar on Cd and As mobility and transfer in soil-rice system. Chemosphere 186:928-937. (PDF)

109. Xu, C, W. Yang, L Zhu, AL. Juhasz, LQ. Ma, J Wang, A Lin. 2017. Remediation of polluted soil in China: policy and technology bottlenecks. Environmental Science & Technology  51:14027−14029. (PDF)

110. Zhang, S., C. Li, Y. Li, R. Zhang, P. Gao, X-Y Cui, LQ. Ma. 2017. Bioaccessibility of PAHs in contaminated soils: Comparison of five in vitro methods with Tenax as a sorption sink. Science of the Total Environment 601–602:968–974. (PDF)

111. Zhang, S., PN. Williams, C-Y Zhou, LQ. Ma, J Luo. 2017. Extending the functionality of the slurry ferrihydrite-DGT method: Performance evaluation for the measurement of vanadate, arsenate, antimonate and molybdate in water. Chemosphere 184:812-819. (PDF)

112. Zhao, D. R-Y Liu, P Xiang, AL. Juhasz, L Huang, J Luo, HB Li, and LQ. Ma. 2017. Applying cadmium relative bioavailability to assess dietary intake from rice to predict cadmium urinary excretion in nonsmokers. Environmental Science & Technology  51: 6756–6764. (PDF)

113. Zhao, D., AL. Juhasz, J Luo, L Huang, X-S Luo, HB Li, and LQ. Ma. 2017. Mineral dietary supplement to decrease cadmium relative bioavailability in rice based on a mouse bioassay. Environmental Science & Technology  51, 12123-12130. (PDF)

2016 (24)  

114. Chen, Y.S., JW Fu, Y.H. Han, B. Rathinasabapathi, and L.Q Ma.  2016. High As exposure induced substantial arsenite efflux in As-hyperaccumulator Pteris vittata. Chemosphere 144:2189-2191. (PDF)

115. de Oliveira, L.M., J. Gress, J. De, B. Rathinasabapathi, G. Marchi, Y. Chen and, Lena Q. Ma.  2016. Sulfate and chromate increased each other's uptake and translocation in As-hyperaccumulator Pteris vittata. Chemosphere 147:36-43. (PDF)

116. Cui, X.Y., P. Xiang, A. Juhasz, and L.Q. Ma.  2016. Advances in in vitro methods to evaluate oral bioaccessibility of PAHs and PBDEs in environmental matrices. Chemosphere 150:378-389. (PDF)

117. Gress, J., E.B. da Silva, L.M. de Oliveira, D. Zhao, G. Anderson, D. Heard, L.D. Stuchal and, Lena Q. Ma.  2016. Potential arsenic exposures in 25 species of zoo animals living in CCA-wood enclosures. Science of the Total Environment 551–552:614–621. (PDF)

118. Guan, DX, PN Williams, HC Xu, J. Luo, and LQ. Ma.  2016. High-resolution measurement and mapping of tungstate in waters, soils and sediments using the low-disturbance DGT sampling technique. Journal of Hazardous Materials 316:69–76. (PDF)

119. Han, Y.H, JW Fu, P Xiang, Y Cao, B Rathinasabapathi, Y.S. Chen, and L.Q Ma.  2016. Arsenic and phosphate rock impacted the abundance and diversity of bacterial arsenic oxidase and reductase genes in rhizosphere of As-hyperaccumulator Pteris vittata. Journal of Hazardous Materials 321:146–153. (PDF)

120. Han, Y.H, G.M. Yang, JW Fu, D.X. Guan, Y.S. Chen, and L.Q Ma.  2016. Arsenic-induced plant growth of arsenic-hyperaccumulator Pteris vittata: Impact of arsenic and phosphate rock. Chemosphere 149:366-372. (PDF)

121. Han, Y.H, JW Fu, Chen, Y.S., B. Rathinasabapathi, and L.Q Ma.  2016. Arsenic uptake, arsenite efflux and plant growth in hyperaccumulator Pteris vittata: role of arsenic-resistant bacteria. Chemosphere 144:1937-1942. (PDF)

122. He, R, Y. Li, P. Xiang, C. Li, C. Zhou, S. Zhang, X. Cui, and L.Q Ma.  2016. Organophosphorus flame retardants and phthalate esters in indoor dust from different environments: bioaccessibility and risk assessment. Chemosphere 150:528-535. (PDF)

123. Li, C., H-J. Sun, A.L Juhasz, X.Y. Cui and L.Q. Ma.  2016. Predicting the relative bioavailability of DDT and its metabolites in historically contaminated soils using a Tenax-improved physiologically based extraction test (TI-PBET). Environmental Science & Technology  50:1118−1125. (PDF)

124. Li, H., D. Zhao, J. Li, SW. Li, N. Wang, A. Juhasz, YG. Zhu, and L.Q. Ma.  2016. Using the SBRC assay to predict lead relative bioavailability in urban soils: contaminant source and correlation model. Environmental Science & Technology  50:4989−4996. (PDF)

125. Li, SW, HB Li, J Luo, HM Li, X Qian, MM Liu, J Bi, XY Cui, LQ. Ma.  2016. Influence of pollution control on lead inhalation bioaccessibility in PM2.5: A case study of 2014 Youth Olympic Games in Nanjing. Environment International  94: 69–75. (PDF)

126. Li, SW, HJ Sun, HB Li, J Luo, and LQ. Ma.  2016. Assessment of cadmium bioaccessibility to predict its bioavailability in contaminated soils. Environment International 94: 600–606. (PDF)

127. Li, J., C. Li, H-J. Sun, A.L. Juhasz, J. Luo, H.-B. Li, and L.Q. Ma.  2016. Arsenic relative bioavailability in contaminated soils: comparison of animal models, dosing schemes, and biological end points. Environmental Science & Technology  50:453−461. (PDF)

128. Liang, S., D-X Guan, J. Li, C-Y Zhou, J. Luo and L.Q. Ma.  2016. Effect of aging on bioaccessibility of arsenic and lead in soils. Chemosphere 151:94-100. (PDF)

129. Liu, X, JW Fu, DX Guan, Y Cao, J. Luo, B. Rathinasabapathi, Y. Chen, and L.Q Ma.  2016. Arsenic induced phytate exudation, and promoted FeAsO4 dissolution and plant growth in As-hyperaccumulator Pteris vittata. Environmental Science & Technology 50, 9070−9077. (PDF)

130. Sun, H.J., P. Xiang, M.H. Tang, L. Sun and L.Q. Ma.  2016. Arsenic impacted the development, thyroid hormone and gene transcription of thyroid hormone receptors in bighead carp larvae. Journal of Hazardous Materials 303:76–82. (PDF)

131. Sun, H.J., P Xiang, J Luo, H Hong, H Lin, HB Li and LQ. Ma.  2016. Mechanisms of arsenic disruption on gonadal, adrenal and thyroid endocrine systems in humans: a review. Environment International  95:61–68. (PDF)

132. Wang, C., X. Cui, Y. Li, H. Li, L. Huang, J. Bi, J. Luo, L.Q. Ma, W. Zhou, Y. Cao, B. Wang & F. Miao.  2016. A label-free and portable graphene FET aptasensor for children blood lead detection. Scientific Reports  6: 21711. (PDF)

133. Xiang, P., R.W. He, Y.H. Han, H.J. Sun, X.Y. Cui and L.Q. Ma.  2016. Mechanisms of housedust-induced toxicity in primary human corneal epithelial cells: Oxidative stress, proinflammatory response and mitochondrial dysfunction. Environment International 89–90:30–37. (PDF)

134. Xiang, P., RY. Liu, HJ. Sun, Y.H. Han, R.W. He, X.Y. Cui and L.Q. Ma.  2016. Molecular mechanisms of dust-induced toxicity in human corneal epithelial cells: Water and organic extract of office and house dust. Environment International  92–93:348–356. (PDF)

135. Xu, JY, Y.H. Han, Chen, Y.S., L.J. Zhu, and L.Q Ma.  2016. Arsenic transformation and plant growth promotion characteristics of As-resistant endophytic bacteria from As-hyperaccumulator Pteris vittata. Chemosphere 144: 1233–1240. (PDF)

136. Zhao, D, J Li, C Li, AL Juhasz, KG Scheckel, J Luo, HB Li, and LQ Ma. 2016. Lead Relative Bioavailability in Lip Products and Their Potential Health Risk to Women. Environmental Science & Technology  50:6036−6043. (PDF)

137. Zhou, C.Y, DX Guan, PN Williams, J.Luo and L.Q Ma.  2016. Novel DGT method with tri-metal oxide adsorbent for in situ spatiotemporal flux measurement of fluoride in waters and sediments. Water Research 99: 200–208. (PDF)

2015 (28)  

138. Chen, H., B, Gao, L.Y. Yang, and L.Q Ma.  2015. Montmorillonite enhanced ciprofloxacin transport in saturated porous media with sorbed ciprofloxacin showing antibiotic activity. Journal of Contaminant Hydrology 173:1–7. (PDF)

139. Chen, Y.S., Y.H. Han, B. Rathinasabapathi, and L.Q Ma.  2015. Naming and functions of ACR2, arsenate reductase, and ACR3 arsenite efflux transporter in plants. Environment International  81: 98–99. (PDF)

140. Cui, X.Y., S.W. Li, S.J. Zhang Y.Y. Fan and L.Q. Ma.  2015. Toxic metals in children's toys and jewelry: Coupling bioaccessibility with risk assessment. Environmental Pollution 200:77-84. (PDF)

141. de Oliveira, L.M., J.T. Lessl, J.K. Gress, R. Tisarum, L.R.G. Guilherme, and L.Q. Ma.  2015 Chromate and phosphate inhibited each other’s uptake and translocation in arsenic hyperaccumulator Pteris vittata L. Environmental Pollution  197:240-246. (PDF)

142. El-Zohri, M., V. Odjegba, L. Ma, and B. Rathinasabapathi.  2015. Sulfate influx transporters in Arabidopsis thaliana are not involved in arsenate uptake but critical for tissue nutrient status and arsenate tolerance. Planta 241:1109–1118. (PDF)

143. Ghosh, P., B. Rathinasabapathi, and L.Q. Ma.  2015. Phosphorus solubilization and plant growth enhancement by arsenic-resistant bacteria.  Chemosphere 134:1–6. (PDF)

144. Ghosh, P., B. Rathinasabapathi, M. Teplitski and L.Q. Ma.  2015. Bacterial ability in AsIII oxidation and AsV reduction: Relation to arsenic tolerance, P uptake, and siderophore production. Chemosphere  138:995–1000. (PDF)

145. Gress, J.K., L.M. de Oliveira, E.B. da Silva, T. Townsend, P.C. Wilson, and L.Q. Ma.  2014. Cleaning-induced arsenic mobilization and chromium oxidation from CCA-wood deck: potential risk to children.  Environment International 82: 35–40. (PDF)

146. Guan, D-X., PN. Williams, J Luo, J-L Zheng, H-C Xu, C Cai, and LQ. Ma.  2015. Novel Precipitated Zirconia-Based DGT Technique for High-Resolution Imaging of Oxyanions in Waters and Sediments. Environmental Science & Technology  49: 3653−3661. (PDF)

147. Lessl, J.T, D.X. Guan, E. Sessa, B. Rathinasabapathi and L.Q. Ma.  2015. Transfer of arsenic and phosphorus from soils to the fronds and spores of arsenic hyperaccumulator Pteris vittata and three non-hyperaccumulators.  Plant Soil 390:49–60. (PDF)

148. Li, C., X.Y. Cui, Y.Y. Fan, Y. Teng, and L.Q Ma.  2015. Tenax as sorption sink for in vitro bioaccessibility measurement of polycyclic aromatic hydrocarbons in soils. Environmental Pollution 196:47–52. (PDF)

149. Li, J., K. Li, X.Y Cui, N.T. Basta, L.P Li, H.B Li, and L.Q. Ma.  2015. Arsenic bioavailability and bioaccessibility in 12 contaminated soils: model comparison and method development. Science of the Total Environment  532:812–820. (PDF)

150. Li, J., K. Li, M. Cave, H.B. Li, L.Q. Ma.  2015. Lead bioaccessibility in 12 contaminated soils from China: Correlation to lead relative bioavailability and lead in different fractions. Journal of Hazardous Materials  295:55–62. (PDF)

151. Li, H.B., K. Chen, A.L Juhasz, L. Huang, and L.Q Ma.  2015. Childhood lead exposure in an industrial town in China: coupling stable isotope ratios with bioaccessible lead. Environmental Science & Technology 49: 5080−5087. (PDF)

152. Li, H.B., J. Li, Y.G Zhu, A. Juhasz, and L.Q. Ma.  2015. Comparison of arsenic bioaccessibility in housedust and contaminated soils based on four assays. Science of the Total Environment  532:803–811. (PDF)

153. Li, K., C. Li, N. Yu, A.L. Juhasz, X.Y Cui and L.Q. Ma.  2015. In vivo bioavailability and in vitro bioaccessibility of perfluorooctanoic acid (PFOA) in food matrices: correlation analysis and method development.Environmental Science & Technology 49:150−158. (PDF)

154. Li, S.W., J. Li, H.B Li, R. Naidu, and L.Q Ma.  2015. Arsenic bioaccessibility in contaminated soils: Coupling in vitro assays with sequential and HNO3 extraction. Journal of Hazardous Materials  196:47–52. (PDF)

155. Liu, X., G–M Yang, D–X Guan, P. Ghosh, and L.Q. Ma.  2015. Catecholate-siderophore produced by As-resistant bacterium effectively dissolved FeAsO4 and promoted Pteris vittata growth. Environmental Pollution 206:376-381. (PDF)

156. Pan, Y., D-X Guan, D. Zhao, J. Luo, H. Zhang, W. Davison, and L.Q. Ma.  2015. Novel Speciation Method Based on Diffusive Gradients in Thin-Films for in Situ Measurement of CrVI in Aquatic Systems. Environmental Science & Technology  49:14267-273. (PDF)

157. Sun, H.J., J.H Ren, H.B Li, X.W Zhang and L. Q. Ma.  2015. Short-term exposure of arsenite disrupted thyroid endocrine system and altered gene transcription in the HPT axis in Zebrafish.Environmental Pollution  205: 145-152. (PDF)

158. Tisarum, R., J–H Ren, X. Dong, H. Chen, J.T. Lessl, and L.Q. Ma.  2015. A new method for antimony speciation in plant tissues and nutrient solutions based on SPE-cartridge. Talanta 144:1171–1175. (PDF)

159. Tisarum, R., Y. Chen, X. Dong, J.T. Lessl, and L.Q. Ma.  2015. Uptake of antimonite and antimonate by arsenic hyperaccumulator Pteris vittata: effects of chemical analogs and transporter inhibitor.Environmental Pollution 206:49-55. (PDF)

160. Wang, S., B. Gao, A. Zimmerman, Y. Li, L. Ma, W. Harris, K. Migliaccio.  2015. Removal of arsenic by magnetic biochar prepared from pinewood and natural hematite. Bioresource Technology 175:391-395. (PDF)

161. Wang, S., B. Gao, A. Zimmerman, Y. Li, L. Ma, W. Harris, K. Migliaccio.  2015.  Manganese oxide-modified biochars: Preparation, characterization, and sorption of arsenate and lead. Bioresource Technology  181:13-17. (PDF)

162. Wang, S., B. Gao, A.R Zimmerman, Y. Li, L. Ma, W. G Harris, K.W Migliaccio.  2015. Physicochemical and sorptive properties of biochars derived from woody and herbaceous biomass. Chemosphere 134:257-262. (PDF)

163. Wang, X., B. Peng, C. Tan, L. Ma & B. Rathinasabapathi.  2015.  Recent advances in arsenic bioavailability, transport, and speciation in rice. Environmental Science and Pollution Research 22:5742–5750. (PDF)

164. Zhao, D., H-B Li, J-Y Xu, J Luo, and LQ Ma.  2015. Arsenic extraction and speciation in plants: method comparison and development. Science of the Total Environment  523:138–145. (PDF)

165. Zheng, J.,  D. Guan, J. Luo, H. Zhang, W. Davison, X. Cui, L. Wang, and L. Q Ma.  2015. Activated charcoal based diffusive gradients in thin-films for in situ monitoring of bisphenols in waters. Analytical Chemistry 87:801−807. (PDF)

2014 (21)  

166. Bundschuh, J., P. Bhattacharya, B. Nath, R Naidu, J Ng, LR Guilherme, LQ. Ma, KW Kim, JS Jean.  2014.  Arsenic ecotoxicology: the interface between geosphere, hydrosphere and biosphere.  Journal of Hazardous Materials  262: 883-886. (PDF)

167. de Oliveira, L.Mg, L.Q. Ma, Santos, J.A.G., Guilherme, L.R.G.  2014.  Effects of arsenate, chromate, and sulfate on arsenic and chromium uptake and translocation by arsenic hyperaccumulator Pteris vittata L.  Environmental Pollution 184: 187-192.  (PDF)

168. Ding, W.p, X. Dong, B. Gao, I.M. Ime, and L.Q. Ma.  2014.  Characteristics and mechanisms of lead sorption by biochars derived from sugarcane bagasse at different pyrolytic temperatures.  Chemosphere  105:68–74. (PDF)

169. Dong, X.g, L.Q. Ma, J. Gress, W. Harris and Y. Li.  2014.  Enhanced Cr(VI) reduction and As(III) oxidation in ice phase: important role of dissolved organic matter from biochar.  Journal of Hazardous Materials  267: 62–70. (PDF)

170. Dubey, S.P., A.D Dwivedi, C. Lee, Y.-N Kwon, M. Sillanpaa and L.Q. Ma.  2014.  Raspberry derived mesoporous carbon-tubules and fixed-bed adsorption of pharmaceutical drugs. Journal of Industrial and Engineering Chemistry  20:1126–1132. (PDF)

171. Dwivedi, A.D.p and L.Q. Ma. 2014. Biocatalytic synthesis pathways, transformation and toxicity of nanoparticles in the environment.  Critical Reviews in Environmental Science and Technology  44: 1679-1739.  (PDF)

172. Fan, J., Z. He, L.Q. Ma, Y. Yang, P.J. Stoffella.  2014.  Impacts of calcium water treatment residue on the soil-water-plant system in citrus production.  Plant Soil 374:993–1004.  (PDF)

173. Fan, Y.Y.g, X.-Y. Cui, J. Luo, and L.Q. Ma.  Effects of storage temperature and duration on release of antimony and bisphenol A from polyethylene terephthalate drinking water bottles of China.  Environmental Pollution  192: 113-120. (PDF)

174. Gress, J.g, J. T. Lessl, X. Dong and L.Q. Ma.  2014.  Assessment of children's exposure to arsenic from CCA-wood staircases at apartment complexes in Florida.  Science of the Total Environment 476–477: 440–446. (PDF)

175. Lessl, J.g, J. Luo, and L.Q. Ma. Pteris vittata continuously removed arsenic from non-labile fraction in three-contaminated soils during 3.5-year of phytoextraction.  Journal of Hazardous Materials 279:485–492.  (PDF)

176. Li, H.B.p, X.Y. Cui, K. Li, J. Li, A. Juhasz, and L.Q. Ma. Assessment of in vitro lead bioaccessibility in house dust and its relationship to in vivo lead relative bioavailability.  Environmental Science & Technology  48:8548−8555. (PDF)

177. Li, H.B.p, J. Li, A.L. Juhasz, and L.Q. Ma.  2014.  Correlation of in vivo relative bioavailability to in vitro bioaccessibility for arsenic in household dust from China and its implication for human exposure assessment. Environmental Science & Technology 48:13652-13659. (PDF)

178. Liang, S.g, D.X. Guan, J.H. Ren, M. Zhang, J. Luo, and L.Q. Ma.  2014.  Effect of aging on arsenic and lead fractionation and availability in soils: coupling sequential extractions with diffusive gradients in thin–films technique.  Journal of Hazardous Materials  273: 272–279. (PDF)

179. Ren, J.H.g, L.Q. Ma, H.J. Sun, F. Cai, and J. Luo.  2014.  Antimony uptake, translocation and speciation in rice plants exposed to antimonite and antimonate.  Science of the Total Environment 475:83–89. (PDF)

180. Sun, H.J.g, B. Rathinasabapathi, B. Wu, J. Luo, L. Pu and L.Q. Ma. 2014. Arsenic and selenium toxicity and their interactive effects in humans.  Environment International  69: 148–158. (PDF)

181. Tisarum, R.g, J.M. Lessl, B. Rathinasabapathi, L.Q. Ma. 2014.  Antimony uptake, efflux and speciation in arsenic hyperaccumulator Pteris vittata. Environmental Pollution 186:110-114. (PDF)

182. Xu, J.Y.g, S. Liang, H.B. Li, J. Luo, and L.Q. Ma.  Arsenic enhanced plant growth and altered rhizosphere characteristics of hyperaccumulator Pteris vittata.  Environmental Pollution 194:105–111.  (PDF)

183. Yu, B., X Xie, L.Q. Ma, H Kan, and Q.X. Zhou.  2014.  Source, distribution, and health risk assessment of polycyclic aromatic hydrocarbons in urban street dust from Tianjin, China.  Environmental Science and Pollution Research  21: 2817-2825. (PDF)

184. Zhu, L.J.g, D. X. Guan, B. Rathinasabapathi, J. Luo, L.Q. Ma.  2014. Characterization of arsenic-resistant endophytic bacteria from hyperaccumulators Pteris vittata and Pteris multifida.  Chemosphere  113: 9–16. (PDF)

185. Zhu, Y.g, B. Gu, D.L. Irick, S. Ewe, Y. Li, M.S. Ross, and L.Q. Ma.  2014.  Wading bird guano contributes to Hg accumulation in tree island soils in the Everglades.  Environmental Pollution  184:313-319. (PDF)

186. Zhu, Y.g, L.Q. Ma, X. Dong, W. Harris, J.C. Bonzongo, and F. Han.  2014.  Ionic strength reduction and flow interruption enhanced colloid-facilitated Hg transport in contaminated soils.  Journal of Hazardous Materials 264: 286– 292. (PDF)

2013 (8)  

187. Chen H.g, L.Q. Ma, B. Gao and C. Gu.  2013.  Effects of Cu, Ca and Fe/Al coating on ciprofloxacin sorption onto sand media.  2013.  Journal of Hazardous Materials  252–253: 375– 381. (PDF)

188. Chen H.g, L.Q. Ma, B. Gao and C. Gu.  2013.  Influence of Cu and Ca cations on ciprofloxacin transport in saturated porous media.  Journal of Hazardous Materials  262: 805–811. (PDF)

189. Dong, X.g, Ma, L.Q., Zhu, Y, Li, Y, and Gu, B. 2013.  Mechanistic investigation of mercury sorption by Brazilian pepper biochars of different pyrolytic temperatures based on X-ray photoelectron spectroscopy and flow calorimetry.  Environmental Science & Technology  (PDF)

190. Lessl, J.g, L.Q. Ma, B. Rathinasabapathi, C. Guy.  2013.  A novel phytase from Pteris vittata resistant to arsenate, high temperature, and soil deactivation.  Environmental Science & Technology 47: 2204–2211. (PDF)

191. Lessl, J.g, L.Q. Ma, B. Rathinasabapathi, C. Guy.  2013.  Sparingly-soluble phosphate rock induced significant plant growth and arsenic uptake by Pteris vittata from three contaminated soils. Environmental Science & Technology  47: 5311−5318. (PDF)

192. Liu, R.g, J. Gress, J. Gao, L.Q. Ma.  2013.  Impacts of two best management practices on Pb weathering and leachability in shooting range soils.  Environmental Monitoring and Assessment 199:375-382. (PDF)

193. Luo, J., H Zhang, W. Davison, R.G. McLaren, L.M. Clucas, L.Q. Ma, X. Wang.  2013.  Localised mobilisation of metals, as measured by diffusive gradients in thin-films, in soil historically treated with sewage sludge.  Chemosphere 90:464-470. (PDF)

194. Ren, J.Hg, J. Luo, H.R Ma, X.R. Wang, LQ Ma.  2013.  Bioavailability and oxidative stress of cadmium to Corbicula fluminea.  Environmental Science: Processes & Impacts  15: 860-869. (PDF)

2012 (4)  

195. Fan, J., Z. He, L.Q. Ma, et al.  2012.  Calcium water treatment residue reduces copper phytotoxicity in contaminated sandy soils.  Journal of Hazardous Materials  199:375-382. (PDF)

196. Gonzaga, M.I.Sg, L.Q. Ma, E.P. Pacheco, W.M. Santos.  2012. Predicting arsenic bioavailability to hyperaccumulator Pteris vittata in arsenic-contaminated soils.  International Journal of Phytoremediation 14: 939-949.  (PDF)

197. Wang, Xg, B. Rathinasabapathi, L.M. Oliveira, L.R.G. Guilherme, and L.Q. Ma.  2012.  Bacteria-mediated arsenic oxidation and reduction in the growth media of arsenic hyperaccumulator Pteris vittata.  Environmental Science & Technology 46: 11259-11266. (PDF)

198. Zhu, Y.g, L.Q. Ma, B. Gao, J.C. Bonzongo, W. Harris and B. Gu.  2012. Transport and interactions of kaolinite and mercury in saturated sand media.  Journal of Hazardous Materials 213:93-99. (PDF)

2011 (13)  

199. Cao, X., L.Q. Ma, Y. Liang, B. Gao, and W. Harris.  2011.  Simultaneous immobilization of lead and atrazine in contaminated soils using dairy-manure biochar. Environmental Science & Technology  45: 4884–4889. (PDF)

200. Dong, X.g, L.Q. Ma, Y. Li.  2011.  Characteristics and mechanisms of hexavalent chromium removal by biochar from sugar beet tailing.  Journal of Hazardous Materials  190:909–915. (PDF)

201. Fan, J., Z. He, L.Q. Ma, Y. Yang, X. Yang, and P.J. Stoffell.  2011.  Immobilization of copper in contaminated sandy soils using calcium water treatment residue.  Journal of Hazardous Materials  189:710–718. (PDF)

202. Fan, J., Z. He, L.Q. Ma, and P.J. Stoffell.  2011.  Accumulation and availability of copper in citrus grove soils as affected by fungicide application. Journal of Soils and Sediments 11:639–648. (PDF)

203. Fayiga, A.O.g, U. Saha, X. Cao and L.Q. Ma.  2011. Chemical and physical characterization of lead in three shooting range soils in Florida.  Chemical Speciation and Bioavailability 23:148-154. (PDF)

204. Gao, B., Y. Dong, Y. Luo, and L.Q. Ma.  2011. Colloid deposition and release in soils and their association with heavy metals.  Critical Reviews in Environmental Science and Technology  41:336-372.  (PDF)

205. Ghosh, P.g, B. Rathinasabapathi and L.Q. Ma.  2011.  Arsenic-resistant bacteria solubilized arsenic in the growth media and increased growth of arsenic hyperaccumulator Pteris vittata.  Bioresource Technology  102:8756-8761. (PDF)

206. Hao, C.g, B. Gao, H. Li, and L.Q. Ma.  2011.  Effects of pH and ionic strength on sulfamethoxazole and ciprofloxacin transport in saturated porous media.  Journal of Contaminant Hydrology  126: 29-36. (PDF)

207. Mathews, S.g, B. Rathinasabapathib, and L.Q. Ma.  2011.  Uptake and translocation of arsenite by Pteris vittata L.: effects of glycerol, antimonite and silver. Environmental Pollution  159:3490-3495. (PDF)

208. Natarajan, S., R.H. Stamps, L.Q. Ma, U.K. Saha, D.Hernandez, Y. Cai, E.J. Zillioux.  2011. Phytoremediation of arsenic-contaminated groundwater using arsenic hyperaccumulator Pteris vittata: Effects of frond harvesting regimes and arsenic levels in refill water.  Journal of Hazardous Materials  185: 983–989. (PDF)

209. Tu, S.p, L.Q. Ma, and B. Rathinasabapathi.  2011.  Characterization of phytase from three ferns with differing arsenic tolerance.  Plant Physiology Biochemistry  49:146-150.  (PDF)

210. Zeng, X.W.g, L.Q. Ma, R.-L. Qiu, and Y.-T. Tang.  2011.  Effect of Zn on plant tolerance and non-protein thiols accumulation in Zn hyperaccumulator Arabis paniculata Franch.  Environmental and Experimental Botany  70: 227–232. (PDF)

211. Wang, X.g, L.Q. Ma, Rathinasabapathi, B., Cai, Y., Liu, Y., Zeng, G.  2011.  Mechanisms of efficient arsenite uptake by arsenic-hyperaccumulator Pteris vittata.  Environmental Science & Technology  45: 9719–9725. (PDF)

2010 (14)  

212. Banger, K., G. Toor, T. Chirenje and L.Q. Ma.  2010.  Polycyclic aromatic hydrocarbons in four urban land use soils of Miami, Florida.  Soil Sediment Contamination  19:231–243.  (PDF)

213. Cao, X.p L.Q. Ma, and A. Shiralipour.  2010.  Composting Arsenic-rich Biomass of Hyperaccumulator Chinese Brake Fern (Pteris vittata L.): Mass Reduction and Arsenic Transformation.  Environmental Science and Pollution Research 17:586–594. (PDF)

214. Huang, A.g, M. Teplitski, B. Rathinasabapathi and L.Q. Ma.  2010.  Characterization of arsenic-resistant bacteria from the rhizosphere of arsenic hyperaccumulator Pteris vittata.  Canadian Journal of Microbiology  56:236-246. (PDF) 

215. Li, Y.g, Y. Zhao, S. Peng, Q. Zhou, and L.Q. Ma.  2010.  Temporal and spatial trends of total petroleum hydrocarbons in the seawater of Bohai Bay, China from 1996 to 2005.  Marine Pollution Bulletin  60: 238–243.  (PDF)

216. Liu, W.X., Y.M. Luo, Y. Teng, Z.G. Li, and L.Q. Ma.  2010.  Bioremediation of oily sludge-contaminated soil by stimulating indigenous microbes.  Environmental Geochemistry and Health 32: 23-29. (PDF)

217. Mathews, S.g, L.Q. Ma, B. Rathinasabapathi, S. Natarajan and U.K. Saha.  2010.  Arsenic transformation in the growth media and biomass of hyperaccumulator Pteris vittata.  Bioresource Technology  101: 8024–8030. (PDF)

218. Nan, Z., Z. Zhao, S. Liu, U. Saha, L.Q. Ma, and Clarke-Sather.  The uptake and translocation of selected elements by cole (Brassica) grown using oasis soils in pot experiments. Toxicological and Environmental Chemistry 92: 1541-1549.  (PDF)

219. Santos, J.A.G.p, M.I.S. Gonzaga, and L.Q. Ma.  2010.  Optimum P levels for arsenic removal from contaminated groundwater by Pteris vittata L. of different ages.  Journal of Hazardous Materials  180: 662–667. (PDF)

220. Srivastava M.p, L.Q. Ma, J. Santos, and P. Srivastava.  2010.  Comparison of arsenic accumulation in 18 fern species and four Pteris vittata accessions. Bioresource Technology  101: 2691-2699. (PDF)

221. Sun, H., B. Gao, Y. Tian, X. Y, C. Yu, Y. W., and L.Q. Ma. Kaolinite and lead in saturated porous media: facilitated and impeded transport. Journal of Environmental Engineering  136:1305-1308. (PDF)

222. Wang, X.g, L.Q. Ma, B. Rathinasabapathi, Y. Liu, G. Zeng.  2010.  Uptake and translocation of arsenite and arsenate by Pteris vittata L.: effects of silicon, boron and mercury. Environmental and Experimental Botany  68: 222–229.  (PDF)

223. Wei, S.p, L.Q. Ma, U. Saha, S. Mathews, S. Sundaram, B. Rathinasabapathi, Q. Zhou.  2010. Sulfate and glutathione enhanced arsenic accumulation by arsenic hyperaccumulator Pteris vittata.  Environmental Pollution 158:1530–1535. (PDF)

224. Yin, X.g, B Gao, L.Q. Ma, U.K. Saha, H. Sun, and G. Wang.  2010.  Colloids-facilitated Pb transport in two shooting range soils in Florida.  Journal of Hazardous Materials  177: 620–625. (PDF)

225. Yin, X.g, U.K. Saha, and L.Q. Ma.  2010.  Effectiveness of best management practices to slow down Pb weathering in a shooting range in Florida.  Journal of Hazardous Materials  179: 895-900. (PDF)

2009 (11)  

226. Cao, X.p L.Q. Ma, and A. Wabbi. 2009. Using phosphate rock to immobilize lead, copper, and zinc in contaminated soils.  Journal of Hazardous Materials  164: 555-564. 

227. Cao, X.p, L.Q. Ma, B. Gao, and W.G. Harris.  2009.  Dairy manure-derived biochar effectively sorbs lead and atrazine.  Environmental Science & Technology  43: 3285-3291.  (PDF)

228. Gonzaga, M.I.S.g, L.Q. Ma, J.A.G. Santos and M.I.S. Matias.  2009.  Rhizosphere characteristics of two arsenic hyperaccumulating Pteris ferns.  Science of the Total Environment  407: 4711-4716. (PDF) 

229. Kertulis-Tartar, G.g, B. Rathinasabapathi and L.Q. Ma  2009.  Characterization of glutathione reductase and catalase in the fronds of two Pteris ferns upon arsenic exposure. Plant Physiology and Biochemistry  47:960–965. (PDF)

230. Mathews, S.g, L.Q. Ma, B. Rathinasabapathib, and R.H. Stamps.  2009. Arsenic reduced scale-insect infestation on arsenic hyperaccumulator Pteris vittata. Environmental and Experimental Botany  65:282-286.  (PDF)

231. Natarajan, S., R.H. Stamps, U.K. Saha and L.Q. Ma.  2009. Effects of N and P levels, and frond-harvesting on absorption, translocation and accumulation of arsenic by Chinese brake fern (Pteris vittata). International Journal of Phytoremediation  11: 313–328.  (PDF)

232. Singh, N.p, L.Q. Ma, J. C. Vu and A. Raj.  2009. Effects of arsenic on nitrate metabolism in arsenic hyperaccumulating and non-hyperaccumulating ferns. Environmental Pollution  157: 2300-2305. (PDF)

233. Srivastava, M.p, L.Q. Ma, B. Rathinasabapathi and P. Srivastava.  2009. Effect of selenium on arsenic uptake in arsenic hyperaccumulator Pteris vittata L.  Bioresource Technology  100: 1115–1121.  (PDF)

234. Sundaram, S., S. Wu1, L.Q. Ma and B. Rathinasabapathi.  Expression of a Pteris vittata glutaredoxin PvGRX5 in transgenic Arabidopsis thaliana increases plant arsenic tolerance and decreases arsenic accumulation in the leaves. Plant, Cell and Environment  32:851-858.  (PDF)

235. Wang, YY, QX Zhou, SW Peng, L.Q. Ma, and XW Niu.  2009.  Toxic effects of crude-oil-contaminated soil in aquatic environment on Carassius auratus and their hepatic antioxidant defense system.  Journal of Environmental Sciences 21:612-617. (PDF)

236. Zeng, X.g, L.Q. Ma, R. Qiu, and Y. Tang.  2009. Responses of non-protein thiols to Cd exposure in Cd hyperaccumulator Arabis paniculata Franch. Environmental and Experimental Botany  66:242-248.  (PDF)

2008 (9)  

237. Appel, C.g, L.Q. Ma, and D. Rhue. 2008.  Sequential Sorption of Pb and Cd in Tropical Soils.  Environmental Pollution 55:132-140.  (PDF)

238. Cao, X.p, L.Q. Ma, S.P. Singh, and Q. Zhou.  2008.  Phosphate-induced lead immobilization from lead minerals in soils under different pH conditions. Environmental Pollution  152: 184-192.  (PDF)

239. Fayiga, A.O.g, and L. Q. Ma, and B. Rathinasabapathi. 2008.  Effects of nutrients on arsenic accumulation by arsenic hyperaccumulator Pteris vittata L. Environmental and Experimental Botany 62: 231–237. (PDF)

240. Gonzaga, M.I.S.g, J.A.G. Santos, and L.Q. Ma.  2008.  Phytoextraction by arsenic hyperaccumulator Pteris vittata L. from six arsenic-contaminated soils: repeated harvests and arsenic redistribution.  Environmental Pollution 154:212-218.  (PDF)

241. Liu, JN., Q-X. Zhou, T. Sun, L.Q. Ma, and S. Wang.  2008.  Identification and chemical enhancement of two ornamental plants for phytoremediation.  Bulletin of Environmental Contamination and Toxicology  80:260-265.  (PDF)

242. Liu, JN., Q-X. Zhou, T. Sun, L.Q. Ma and S. Wang. 2008.  Growth responses of three ornamental plants to Cd and Cd-Pb stress and their metal accumulation characteristics.  Journal of Hazardous Materials  151:261-267.  (PDF)

243. Natarajan, S., R. Stamps, U. Saha and L.Q. Ma.  2008.  Effects of nutrient levels and frond harvesting on absorption, translocation and accumulation of arsenic by Pteris vittata L– Chinese brake fern.  International Journal of Phytoremediation  10:222–235.  (PDF)

244. Santos, J.A.G.p, M.I.S. Gonzaga, and L.Q. Ma.  2008.  Timing of phosphate application affects arsenic phytoextraction by Pteris vittata L of different ages.  Environmental Pollution  154:306-311.  (PDF)

245. Sundaram, S., B. Rathinasabapath, L.Q. Ma, and B.P. Rosen.  2008.  An arsenate-activated glutaredoxin from the arsenic hyperaccumulator fern Pteris vittata L. regulates intracellular arsenite.  Journal of Biological Chemistry  283: 6095-6101.  (PDF)

2007 (6)  

246. Fayiga, A.O.g, L.Q. Ma, and Q. Zhou.  2007.  Effects of plant arsenic uptake and heavy metals on arsenic distribution in an arsenic-contaminated soil.  Environmental Pollution  147:737-742. (PDF)

247. Gonzaga, M.I.S.g, J.A.G. Santos, L.Q. Ma, and N.B. Comerford.  2007.  Comparison of root systems efficiency and arsenic uptake of two fern species.  Communications in Soil Science and Plant Analysis  38:1163-1177.  (PDF)

248. Gonzaga, M.I.S.g, J.A.G. Santos, and L.Q. Ma.  2007.  Effects of the plant growth stage on the arsenic hyperaccumulation by Pteris vittata L. Water, Air, and Soil Pollution 186: 289-295. (PDF)

249. Ma, L.Q., D.W. Hardison Jr, W.G. Harris, X. Cao, and Q.X. Zhou. 2007.  Effects of soil property and soil amendment on weathering of abraded metallic Pb in shooting ranges.  Water, Air, and Soil Pollution 178:297–307.  (PDF)

250. Rathinasabapathi, B., M. Rangasamy, J. Froeba, R.H. Cherry, H.J. McAuslane, J.L. Capinera, M. Srivastava, and L.Q. Ma.  2007.  Arsenic hyperaccumulation in the Chinese brake fern deters grasshopper herbivore.  New Phytologist  175: 363–369.  (PDF)

251. Yoon, J.g, X. Cao, and L.Q. Ma.  2007.  Application methods affect P-induced Pb immobilization from a contaminated soil.  Journal of Environmental Quality  36:373-378. (PDF)

2006 (14)  

252. Bondada, B.R.p, C. Tu, and L.Q Ma. 2006. Surface ultrastructure of a newly-discovered arsenic hyperaccumulating fern (Pteris vittata L.).  Brittonia 58: 217-228.  

253. Chirenje, T.g, L.Q. Ma and L. Lu. 2006. Retention of Cd, Cu, Pb and Zn by wood ash, lime and fume dust.  Water, Air, and Soil Pollution 171:301-314.  (PDF)

254. Fayiga, A.O.g, and L. Q. Ma.  2006.  Using phosphate rock to immobilize metals in soils and increase arsenic uptake in Pteris vittata. Science of the Total Environment 359: 17-25.  (PDF)

255. Gonzaga, M.I.Sg, J.A.G. Santos, and L.Q. Ma. 2006.  Arsenic chemistry in the rhizosphere of Pteris vittata L. and Nephrolepis exaltata L.  Environmental Pollution  143:254-260.  (PDF)

256. Gonzaga, M.I.Sg, S, J.A.G. Santos, and L.Q. Ma.  2006.  Arsenic phytoextraction and hyperaccumulation by fern species.   Scientia Agricola 63:.90-101. (PDF) 

257. Guo, GL, QX, Zhou, and LQ Ma.  2006. Availability and assessment of fixing additives for the in situ remediation of heavy metal contaminated soils: a review. Environmental Monitoring and Assessment 116: 513-528. (PDF)

258. Kertulis-Tartar, G.g, L. Q. Ma, C. Tu and T. Chirenje  2006.  Phytoremediation of an arsenic-contaminated site using Pteris vittata L: a two-year study.  International Journal of Phytoremediation 8: 311-322.  (PDF)

259. Rathinasabapathi B, S.B. Raman, G. Kertulis-Tartar, and L.Q. Ma.  2006.  Arsenic-resistant proteobacterium from the phyllosphere of arsenic-hyperaccumulating fern (Pteris vittata L.) reduces arsenate to arsenite.  Canadian Journal of Microbiology 52:695-700.  (PDF)

260. Rathinasabapathi, B., S. Wu, S. Sundaram, J. Rivoal, M. Srivastava, and L.Q. Ma.  2006.  Arsenic resistance in Pteris vittata L.: identification of a cytosolic triosephosphate isomerase based on cDNA expression cloning in Escherichia coli.  Plant Physiology and Biochemistry  62: 845-857.  (PDF)

261. Singh, Np, and L. Q. Ma.  2006.  Arsenic speciation, and arsenic and P distribution in arsenic hyperaccumulator Pteris vittata and non-hyperaccumulator Pteris ensiformis. Environmental Pollution 141:238-246.  (PDF)

262. Singh, N.p, L. Q. Ma, M. Srivastava and B. Rathinasabapathi.  2006.   Metabolic adaptations to arsenic-induced oxidative stress in Pteris vittata L and Pteris ensiformis L. Plant Science  170: 274-282. (PDF)

263. Singh, S.P.p, L.Q. Ma, and M.J. Hendry.  2006.  Characterization of aqueous lead removal phosphatic clay: equilibrium and kinetics studies.  Journal of Hazardous Materials  136: 654-662.  (PDF)

264. Srivastava, M.p, and L.Q. Ma.  2006.  Three new arsenic hyperaccumulating ferns.  Science of the Total Environment  364: 24-31.  (PDF)

265. Yoon, J.g, X. Cao, Q. Zhou, and L.Q. Ma.  2006.  Accumulation of Pb, Cu, and Zn in native plants growing on a contaminated Florida site.  Science of the Total Environment 368: 456–464.  (PDF)

2005 (13)  

266. Al Agely, A.p, D.M. Sylvia, and L.Q. Ma.  2005.  Mycorrhizae increase arsenic uptake by hyperaccumulator Pteris vittata.  Journal of Environmental Quality  34:2181–2186.  (PDF)

267. Fayiga, A.O.g, and L.Q. Ma.  2005.  Arsenic uptake by two hyperaccumulator ferns from four arsenic contaminated soils.  Water, Air, and Soil Pollution 168:71–89.  (PDF)

268. Fayiga, A.O.g, L. Q. Ma, J. Santos, B. Rathinasabapathi, Stamps R. and R. C. Littell. 2005.  Effects of arsenic species and concentrations on arsenic accumulation by different fern species in a hydroponic system.  International Journal of Phytoremediation  7:231–240.  (PDF)

269. Kertulis-Tartar, G.g, L.Q. Ma, G.E. MacDonald, R. Chen, J. Winefordner, and Y. Cai.  2005.  Arsenic speciation and transport in Pteris vittata L. and the effects on phosphate in the xylem sap.  Environmental and Experimental Botany 54: 239–247. (PDF)

270. Luongo, L and L.Q. Ma.  2005.  Characteristics of arsenic accumulation by Pteris and non-Pteris ferns.  Plant Soil  277: 117 - 126. (PDF) 

271. Ma, L.Q., Y. Dongg and Q. Zhou.2005. Relation of relative colloid stability ratio and colloid release in two lead-contaminated soils.  Water, Air, and Soil Pollution 160:343-355.  (PDF)

272. Ouying, Y. and L.Q. Ma.  2005.  Simulation of phytoremediation of a TNT-contaminated soil using CTSPAC model. Journal of Environmental Quality  34:14901496.  (PDF)

273. Singh, N.p and L.Q. Ma.  2005.  Chinese Brake fern-a potential phytoremediator of arsenic contaminated soil and water.  Universities’ Journal of Phytochemistry and Ayurvedic Heights  1:41-43. (PDF)

274. Srivastava, M.p, L. Q. Ma, N. Singh, and S. Singh. 2005.  Antioxidant responses of hyperaccumulator and sensitive fern species to arsenic.  Journal of Experimental Botany 56: 1335–1342. (PDF)

275. Srivastava, M.p, L.Q. Ma, and J. Cotruvo. 2005. Uptake and distribution of selenium in different fern species.  International Journal of Phytoremediation 7:33-42.  (PDF)

276. Tu, C.p, and L.Q. Ma.. 2004. Effects of As hyperaccumulation on nutrient content and distribution in fronds of the hyperaccumulator Chinese brake.  Environmental Pollution  135-333-340.  (PDF)

277. Wei, S., Q. Zhou, X. Wang, K. Zhang, G. Guo and L.Q. Ma.2005. A newly-discovered Cd-hyperaccumulator Solanum nigrum L.  Chinese. Science Bulletin   50: 33-38.  (PDF)

278. Xiao, H., Q. X. Zhou and L. Q. Ma. 2005.  Joint effects of acetochlor and urea on germinating characteristics of crop seeds.  Science in China. Series C, Life sciences / Chinese Academy of Sciences  48: 1-6.  (PDF)

2004 (17)  

279. Bondada, B.R.p, S. Tu and L.Q. Ma. 2004. Absorption of frond-applied arsenic by the arsenic hyperaccumulating fern Pteris vittata L. Science of the Total Environment 332:61-70.  (PDF)

280. Cai, Y., J. Su and L.Q. Ma.  2004.  Low molecular weight thiols in arsenic hyperaccumulator Pteris vittata upon exposure to arsenic and other trace elements.  Environmental Pollution 129: 69-78.  (PDF)

281. Cao, X.p and L.Q. Ma. 2004.  Effects of Compost and Phosphate on Plant arsenic Uptake from Soils near pressure-treated wood.   Environmental Pollution 132:435-442.  (PDF)

282. Cao, X.p L.Q. Ma, Dean Rhue, and Chip Appel. 2004.  Mechanisms of Lead, Copper, and Zinc Immobilization by Phosphate Rock.  Environmental Pollution 131:435-444. (PDF)

283. Cao, X.p, L.Q. Ma, and C.Tu.  2004.  Antioxidative responses to arsenic in arsenic-hyperaccumulator Chinese brake fern (Pteris vittata L.). Environmental Pollution 128:317-325.  (PDF)

284. Chen, R., B.W. Smith, J.D. Winefordner, M.S. Tu, G. Kertulis, and L.Q. Ma.  2004. Arsenic speciation in Chinese brake fern by ion-pair high-performance liquid chromatography–inductively coupled plasma mass spectroscopy.  Analytica Chimica Acta  504:199-207.  (PDF)

285. Chirenje, T.p, L.Q. Ma, M. Reeves, M. Szulczewski, and E. Zillioux. 2004.  Lead distributions in urban soils of two Florida cities: Gainesville and Miami.  Geoderma  119:113-120.  (PDF)

286. Fayiga, A.O.g, L.Q. Ma, R. X. Cao, and B. Rathinasabapathi.  2004.  Effects of heavy metals on growth and arsenic accumulation in the arsenic hyperaccumulator Pteris vittata L. Environmental Pollution  132: 289-296. (PDF)

287. Hardison Jr., D.W.g, L.Q. Ma, T. Luongo, and W.G. Harris.  2004.  Lead Contamination in Shooting Range Soils from Abrasion of Lead Bullets and subsequent weathering.  Science of the Total Environment  328:175-183.  (PDF)

288. Ma, L.Q. and Y. Dongg. 2004. Effects of incubation on solubility and mobility of trace metals in two contaminated soils.  Environmental Pollution  130:301-307. (PDF)

289. Rivero, C.p, C. Chirenje, L.Q. Ma, and G.A. Martinez.  2004. The effect of compost incorporation on soil organic matter quality under tropical conditions  Geoderma.  123: 355-361.  (PDF)

290. Tu, S.p, L.Q. Ma, A.O. Fayiga and E.J. Zillioux. 2004.  Phytoremediation of Arsenic Contaminated Groundwater by an Arsenic Hyperaccumulating Fern Pteris vittata L. International Journal of Phytoremediation  6:35–47. (PDF)

291. Tu, S.p and L.Q. Ma. 2004.  Comparison of arsenic and phosphate uptake and distribution in arsenic hyperaccumulating and nonhyperaccumulating fern.  Journal of Plant Nutrition  27:1227-1242.  (PDF)

292. Tu, S.p and L.Q. Ma. 2004.  Root exudation and its role in arsenic hyperaccumulation of Pteris vittata.  Plant Soil  258: 9-19.  (PDF)

293. Tu, S.p and L.Q. Ma. 2004.  Arsenic absorption, speciation and thiol formation in excised parts of Pteris vittata in the presence of phosphorus.  Environmental and Experimental Botany  51: 121-131.  (PDF)

294. Zhang, W., Y. Cai, K. Downum, and L.Q. Ma. 2004.  Arsenic complex in the arsenic hyperaccumulator Pteris vittata (Chinese brake fern).  Journal of Chromatography A 1043: 249–254.  (PDF)

295. Zhang, W., Y. Cai, Z. Chen, K. Downum, and L.Q. Ma. 2004. Thiol synthesis and arsenic hyperaccumulation in Pteris vittata (Chinese brake fern). Environmental Pollution 131:337-345.  (PDF)

2003 (16)  

296. Appel, C.g, L.Q. Ma, D. Rhue, and E. Kennelley. 2003. Determination of zero point of charge in soils and minerals: method comparison.  Geoderma 113:77– 93.  (PDF)

297. Appel, C.g, L.Q. Ma, R.D. Rhue, and W. Reve.  2003.  Selectivities of potassium-calcium and potassium-lead exchange in two tropical soils. Soil Science Society of America Journal  67:1707-1714.  (PDF)

298. Chen, M.p, L.Q. Ma, X. Cao, R. Melamed, and S.P. Singh.  2003.  Field demonstration of in situ immobilization of soil Pb using P amendments.  Advances in Environmental Research  8:93-102. (PDF)

299. Cao, X.p, L.Q. Ma, M. Chen, D. Hardison, and W.G. Harris. 2003. Weathering of lead bullets and their environmental effects at outdoor shooting ranges.  Journal of Environmental Quality  32: 526-534.  (PDF)

300. Cao, X.p, L.Q. Ma, S.P. Singh, M. Chen, and W. Harris.  2003.  Phosphate-induced metal immobilization in a contaminated site. Environmental Pollution 122:19-28. (PDF)

301. Cao, X.p, L.Q. Ma, M. Chen, D. Hardison, and W. Harris. 2003.  Lead transformation and distribution in Florida shooting range soils.  Science of the Total Environment  307:179-189.  (PDF)

302. Cao, X.p, L.Q. Ma, and A. Shiralipour. 2003. Effects of compost and phosphate amendments on arsenic leachability in soils and arsenic uptake by Chinese Brake (Pteris Vittata L.).  Environmental Pollution  126:157-167. (PDF)

303. Chirenje, T.p, L.Q. Ma, M. Chen and E. J. Zillioux.  2003.  Arsenic background concentration comparison in urban and non-urban areas of Florida.  Advances in Environmental Research  8:137-146.  (PDF)

304. Chirenje, T.p,L.Q. Ma, M. Szulczewski, R. Littell, K. M. Portier and E. Zillioux.  2003.  Soil arsenic distribution in two Florida cities: Gainesville and Miami.  Journal of Environmental Quality   32: 109-119.  (PDF)

305. Chirenje, T.p, L.Q. Ma, C. Clark, and M. Reeves. 2003. Cu, Cr and As distribution in soils adjacent to pressure-treated decks, fences and poles. Environmental Pollution  124:407-417. (PDF)

306. Fitz, W.J., W.W. Wenzel, H. Zhang, K. Tipek, J. Nurmi, Z. Fischerova, P. Schweiger, G. Kölensperger, L.Q. Ma, and G.J. Stingeder. 2003. Rhizosphere characteristics of the arsenic hyperaccumulator Pteris vittata l. and monitoring of phytoremoval efficiency.  Environmental Science & Technology  37:5008-5014. (PDF)

307. Melamed, R.p, L.Q. Ma, X. Cao, Chen, M. and S.P. Singh. 2003.  Field assessment of Pb immobilization in a contaminated soil using P amendments.  Science of the Total Environment. 305: 117-127. (PDF)

308. Tu, C.p, and L.Q. Ma. 2003.  Effects of arsenate and phosphate on their accumulation by an arsenic-hyperaccumulator Pteris vittata L. Plant Soil 249:373–382. (PDF)

309. Tu, C.p, L.Q. Ma, W. Zhang, Y. Cai, and W.G. Harris. 2003. Arsenic species and leachability in the fronds of the hyperaccumulator Chinese brake (Pteris vittata L.).  Environmental Pollution  124:223-230.  (PDF)

310. Tu, S.p, and L.Q. Ma. 2003. Interactive Effects of pH, As and P on growth and As/P uptake in hyperaccumulator Pteris vittata. Environmental and Experimental Botany  50:243-251.  (PDF)

311. Webb, S.M, J.-F. Gaillard, L.Q. Ma, and C. Tu. 2003. XAS speciation of arsenic in a hyperaccumulating fern. Environmental Science & Technology  37: 754-760.(PDF)

2002 (14)  

312. Appel, C.g, L.Q. Ma, D. Rhue, and W. Reve. 2002.  Selectivities of K/Ca and K/Pb exchange in two tropical soils.  Soil Science  167:773-781.  (PDF)

313. Appel, C.g, and L.Q. Ma.  2002.  Concentration, pH, and surface charge effects on Cd/Pb sorption in three tropical soils.  Journal of Environmental Quality 31:581-589.  (PDF)

314. Cao, X.p, L.Q. Ma, M. Chen, S.P. Singh, and W.G. Harris. 2002.  Impacts of phosphate amendments on lead biogeochemistry in a contaminated site.  Environmental Science & Technology 36: 5296-5304. (PDF)

315. Chen, M.p, L. Q. Ma, and W.G. Harris. 2002.  Arsenic concentrations in Florida surface soils: influence of soil type and properties.  Soil Science Society of America Journal 66:632-640.  (PDF)

316. Chen, M.p, L.Q. Ma, W.G. Harris, and X. Cao. 2002.  Characterization of Pb in soils of a rifle/pistol shooting range in Central Florida.  Soil Sediment Contaminat  11:1-17. (PDF)

317. Chirenje, T.g, .L.Q. Ma, and E. Zillioux. 2002. Determination of arsenic background concentrations in urban soils.  Scientific World Journal  2:1404-1417. (PDF)

318. Chirenje, T.g, L.Q. Ma and C. Rivera. 2002.  Effects of humic and fulvic acids on As and Cr leachability in wood ash-amended soils.  Soil Sediment Contamination. 11:359-375. (PDF)

319. Chirenje, T.g, L.Q. Ma and C. Rivera. 2002.  Leachability of Cu and Ni in wood ash-amended soil as impacted by humic and fulvic acid.  Geoderma  108:31-47.  (PDF)

320. Chirenje, T.g and L.Q. Ma.  2002.  Impacts of high-volume papermill ash amendment on soil properties and nutrient status.  Communications in Soil Science and Plant Analysis 33:1-17.  (PDF)

321. Lombi, E., F.-J. Zhao, M. Fuhrmann, L.Q. Ma and S.P. McGrath.  2002.  Arsenic distribution and speciation in the fronds of the hyperaccumulator Pteris vittata.  New Phytologist 156:195–203. (PDF)

322. Tu, C.p, L.Q. Ma, and B. Bondada. 2002.  Arsenic accumulation in a hyperaccumulator fern (Pteris vittata L.) and its utilization potential for phytoremediation.  Journal of Environmental Quality 31:1671-1675. (PDF)

323. Tu, C.p, and L.Q. Ma.  2002.  Effects of arsenic concentrations and forms on arsenic uptake by the hyperaccumulator Ladder Brake.  Journal of Environmental Quality   31:641-647. (PDF)

324. Wu, L.g, and L. Q. Ma. 2002.  Relationship between compost stability and extractable organic carbon in soils.  Journal of Environmental Quality  31:1323-1328. (PDF)

325. Zhang, W., Y. Cai, C. Tu, and L.Q. Ma. 2002.  Arsenic speciation and distribution in an arsenic hyperaccumulating plant. Science of the Total Environment 300:167-177. (PDF)

2001 (10)  

326. Chen, M.p, L.Q. Ma, C. G. Hoogeweg, and W.G. Harris. 2001.  Arsenic background concentrations in Florida surface soils: determination and interpretation.  Environmental Forensics 2:117-126.  (PDF)

327. Chen, M.p and L.Q. Ma.  2001.  Taxonomic and geographic distribution of total P in Florida surface soils. Soil Science Society of America Journal  65:1539-1547. (PDF) 

328. Chen, M.p L.Q. Ma, and Willie G. Harris.  2001.  Distribution of Pb and As in soil at a shooting range in Central Florida Soil.  Soil and Crop Science  Society of Florida Proceedings  60:15-20.  (PDF)

329. Chen, M.p and L.Q. Ma.  2001.  Comparison of three aqua regia digestion methods for analyzing 16 elements in soils.  Soil Science Society of America Journal  65:491-499. (PDF)

330. Chirenje, T.p, L.Q. Ma, A.G. Hornsby, K. Portier, W. Harris, and E. J. Zillioux. 2001.  Protocol development for assessing arsenic background concentrations in Florida urban soils.  Environmental Forensics  2:141-153. (PDF)

331. Ma, L.Q., K.M. Komarg, C. Tup, W. Zhang, Y Cai, and E. D. Kennelley.  2001.  A fern that hyperaccumulates arsenic.  Nature  409:579.  (PDF)

332. Ma, L.Q., K.M. Komarg, C. Tup, W. Zhang, Y Cai, and E. D. Kennelley.  2001.  A fern that hyperaccumulates arsenic-addendum.  Nature  411:438. (PDF) 

333. Singh, S.P.p, L.Q. Ma, and W.G. Harris.  2001.  Heavy metal interactions with phosphatic clay: sorption and desorption behavior.  Journal of Environmental Quality  130:1961-1968. (PDF)

334. Zillioux, E. J., Chirenje, T., P. Cline, T.W. Fitzpatrick, D.J. Folkes, S.C. Gautie, and L.Q. Ma,. 2001.  Conflict resolution associated with arsenic background definition: a panel discussion. Environmental Forensics  2:169-175. (PDF)

335. Wu, L.g and L.Q. Ma.  2001.  Impacts of sample storage on compost stability and maturity evaluation.  Journal of Environmental Quality  30:222-228.  (PDF)

2000 (5)  

336. Chen, M.p, L.Q. Ma, and Y.C. Li. 2000.  Concentrations of P, K, Al, Fe, Mn, Cu, Zn, and As in Marl soils from South Florida.   Soil and Crop Science  Society of Florida Proceedings 59:124-129.  (PDF)

337. Dong, Y.g, L.Q. Ma and R.D. Rhue. 2000.  Relation of Pb solubility and Fe partitioning in soils.  Environmental Pollution  110:515-522.  (PDF)

338. Singh, S.P.p, L.Q. Ma, and W.G. Harris. 2000.  Trace metal leachability from land disposed dredged sediments.  Journal of Environmental Quality   29:1124-1132.  (PDF)

339. Tan, Z., Harris, W.G., and L.Q. Ma. 2000.  Comparison of groundwater colloids in adjoining soils of Florida flatwoods.  Soil Science  165:124-134.  (PDF)

340. Wu, L.g, L.Q. Ma and G.A. Martinez.  2000.  Comparison of methods for evaluating stability and maturity of biosolids compost.  Journal of Environmental Quality   29:424-429. (PDF)

1990-1999 (20)  

341. Chen, M.p, L.Q. Ma and W. Harris. 1999.  Baseline concentrations of 15 trace elements in Florida surface soils.  Journal of Environmental Quality  28:1173-1181. (PDF)

342. Chen, M.p, L.Q. Ma., and W.G. Harris. 1999.  Assessment of P concentrations in different types of Florida surface soils.   Soil and Crop Science  Society of Florida Proceedings  58:58-62.  (PDF)

343. Chirenje, T.g and L.Q. Ma.  1999.  Greenhouse study of slash pine responses to fertilizer in a papermill-ash amended soil. Soil and Crop Science  Society of Florida Proceedings 58: 760-6.  (PDF)

344. Chirenje, T.g and L.Q. Ma.  1999.  Effects of acidification on metal mobility in a papermill-ash amended soil.  Journal of Environmental Quality  28:760-766.  (PDF)

345. Ma, L.Q. and G.N. Raop.  1999.  Aqueous Pb reduction in Pb-contaminated soils by Florida phosphate rocks.  Water, Air, and Soil Pollution 110:1-16.  (PDF)

346. Vest, M. M, T. Chirenje, and L.Q. Ma.  1999.  Study of slash pine response to wood fired boiler ash and fertilizer in a boiler ash amended soil.  Tappi International Environmental Conference  3:1131-1145. (PDF)

347. Xiao, C.g, L.Q. Ma, and T. Sarigumba. 1999.  Effects of soil on trace metal leachability from papermill ashes and sludge.  Journal of Environmental Quality   28:321-333.  (PDF)

348. Chen, M.p and L.Q. Ma.  1998.  Comparison of four EPA digestion methods for trace metals using certified and Florida soils.  Journal of Environmental Quality  27:1294-1300. (PDF)

349. Ma, L.Q. and G.N. Raop.  1997.  Chemical fractionation of cadmium, copper, nickel, and zinc in contaminated soils.  Journal of Environmental Quality  26:259-264. (PDF)

350. Ma, L.Q, F. Tan and W.G. Harris.  1997.  Concentrations and distributions of 11 elements in Florida soils.  Journal of Environmental Quality  26:769-775. (PDF)

351. Ma, L.Q. and G.N. Raop.  1997.  The effect of phosphate rock on Pb distribution in contaminated soils.  Journal of Environmental Quality  26: 788-794.  

352. Ma, L.Q. A.L. Choate, and G.N. Rao.  1997.  Effects of incubation and phosphate rock on Pb extractability and speciation in contaminated soils.  Journal of Environmental Quality  26: 801-807.  (PDF)

353. Ma, L.Q.  1996. Factors influencing the effectiveness and stability of aqueous Pb immobilization by hydroxyapatite. Journal of Environmental Quality  25:1420-1429.  (PDF)

354. Ma, L.Q. and W.L. Lindsay.  1995.  Estimation of Cd2+ and Ni2+ activities in contaminated and uncontaminated soils by chelation.  Geoderma  68:123-133.  (PDF)

355. Ma, L.Q., T.J. Logan, and S.J. Traina.  1995. Lead immobilization from aqueous solutions and contaminated soils using phosphate rocks.  Environmental Science & Technology  29:1118-1126.  (PDF)

356. Ma, L.Q., S.J. Traina, T.J. Logan, and J.A. Ryan.  1994. Effects of aqueous Al, Cd, Cu, Fe, Ni, & Zn on Pb immobilization by hydroxyapatite.  Environmental Science & Technology  28:1219-1228.  (PDF)

357. Ma, L.Q., T.J. Logan, S.J. Traina, and J.A. Ryan.  1994.  Effects of NO3, Cl, F, SO4 and CO3 on Pb immobilization by hydroxyapatite.  Environmental Science & Technology  28:408-418. (PDF)

358. Ma, L.Q., S.J. Traina, T.J. Logan, and J.A. Ryan.  1993.  In situ Pb immobilization by apatite.  Environmental Science & Technology  27:1803-1810.  (PDF)

359. Ma, L.Q., and W.L. Lindsay.  1993.  Measurement of free Zn2+ activities in uncontaminated and contaminated soils using chelation. Soil Science Society of America Journal  57:963-967.  (PDF)

360. Ma, L.Q. and W.L. Lindsay.  1990.  Divalent zinc activity in arid-zone soils by chelation.  Soil Science Society of America Journal   54:719-722.  (PDF)