Lena Q. Ma

Professor
Biogeochemistry of Trace Metals

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DEPARTMENTAL RESEARCH AREAS
Remediation of Contaminated Soils, Waters, and Aquifers

RESEARCH FOCUS
1. Phytoremediation and chemical remediation of trace-metal-contaminated water, soils, and wastes
2. Land-application and disposal of non-hazardous wastes
3. Biogeochemistry and speciation of trace metals in water-soil system
4. Chemical equilibria of trace metals in soils, their bioavailability to plants and mechanisms controlling their solubilities in soils

COURSES TAUGHT
CWR 6252 - Environmental Biogeochemistry of Trace Metals (co-teaches)
SOS 6262 - Soil Contamination and Remediation

SELECT PUBLICATIONS
Appel, C., 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.

Appel, C., L.Q. Ma, R.D. Rhue, and W. Reve. 2003. Selectivities of Potassium-Calcium and Potassium-Lead Exchange in Two Tropical Soils. Soil Sci Soc Am J. 67:1707-1714.

Cao, X., L.Q. Ma, M. Chen, D. Hardison, and W.G. Harris. 2003. Weathering of lead bullets and their environmental effects at outdoor shooting ranges. J. Environ. Qual. 32: 526-534.

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

Cao, X., L.Q. Ma, M. Chen, D. Hardison, and W. Harris. 2003. Lead transformation and distribution in Florida shooting range soils. Sci. Total Environment. 307:179-189.

Cao, X., 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.). Environ. Pollution. 126:157-167.

Chen, M., L.Q. Ma, R.X. Cao, R. Melamed and S.P. Singh. 2003. Field demonstration of in situ immobilization of soil Pb using P amendments. Adv. Environ. Res. 8:93-102.

Chirenje, T., 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.

Chirenje, T., L.Q. Ma, M. Chen and E. J. Zillioux. 2003. Arsenic background concentration comparison in urban and non-urban areas of Florida. Adv. Environ. Res. 8:137-146.

Chirenje, T.,L.Q. Ma, M. Szulczewski, R. Littell, K. M. Portier and E. Zillioux. 2003. Soil arsenic distribution in two Florida cities: Gainesville and Miami. J. Environ. Qual. 32: 109-119.

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. Environ. Sci. Technol. 37:5008-5014.

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

Tu, C., 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.

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

Tu, S., and L.Q. Ma. 2003. Interactive effects of pH, arsenic and phosphorus on uptake of As and P and growth of the arsenic hyperaccumulator Pteris vittata L. under hydroponic conditions. Environ. Exp. Bot. 50: 243-251.

Webb, S.M, J.-F. Gaillard, L.Q. Ma, and C. Tu. 2003. XAS speciation of arsenic in a hyperaccumulating fern. Environ. Sci. Technol. 37: 754-760.


CONTACT INFORMATION
Soil and Water Science Department, 2169 McCarty Hall, PO Box 110290, University of Florida, Gainesville, Florida 32611
(352) 392.1951 x 208, (352) 392.3902 fax
email: lqma@ufl.edu
Full Curriculum Vitae