Phytoremediation in wetland ecosystems: Progress, problems, and potential

Critical Reviews in Plant Sciences

Volumn 21, Issue 6, 2002, Pages 607-635

  Williams, John B ^a  

^a SOUTH CAROLINA STATE UNIVERSITY   (United States)

Author keywords

Degradation; Heavy metals; Monitoring; Phytovolatilization; Succession; TCE

Indexed keywords

POPULUS BEROLINENSIS;

EID: 0036446576     PISSN: 07352689     EISSN: None     Source Type: Journal    
DOI: 10.1080/0735-260291044386     Document Type: Review

References (123)

1. Aiken, S.G., Newroth, P.R., and Wile, I. 1979. The biology of Canadian weeds, Myriophyllum spicatum L. Canadian J. Plant Sci. 59:201-215.
2. Ali, M.B., Tripathi, R.D., Rai, U.N., Pal, A., and Singh, S.P. 1999. Physico-chemical characteristics and pollution level of Lake Nainital (U.P., India): Role of macrophytes and phytoplankton in biomonitoring and phytoremediation of toxic metal ions. Chemosphere 39(12):2171-2182.
3. Anderson, K.L., Wheeler, K.A., Robinson, J.B., and Tuovinen, O.H. 2002. Atrazine mineralization potential in two wetlands. Water Research. In Press.
4. Angier, J.T., McCarty, G.W., Rice, C.P., and Bialek, K. 2002. Influence of a riparian wetland on nitrate and herbicides exported from an agricultural field. J. Agric. Food Chem. 50(15):4424-4429
5. Batiuk, R.A., Orth, R.J., Moore, K.A., Dennison, W.C., Stevenson, J.C., Staver, L.W., Carter, V., Rybicki, N.B., Hickman, R.E., Kollar, S., Bieber, S., and Heasly, P. 1992. Chesapeake Bay Submerged Aquatic Vegetation Habitat Requirements and Restoration Targets: A Technical Synthesis. Chesapeake Bay Program, Annapolis, MD. CBP/TRS 83/92, Contract No. 68-WO-0043.
6. Best, E.P., Zappi, M.E., Fredrickson, H.L., Sprecher, S.L., Larson, S.L., and Ochman, M. 1997. Screening of aquatic and wetland plant species for phytoremediation of explosives- contaminated groundwater from the Iowa Army Ammunition Plant. Annal. N.Y Acad. Sci. 829:179-194.
7. Bradley, C.E. and Smith D.G. 1986. Plains cottonwood recruitment and survival on a prairie meandering river floodplain, Milk River, southern Alberta and northern Montana. Can. J. Bot. 64:1433-1442.
8. Briggs, G.G., Bromilow, R.H., and Evans, A.A. 1982. Relationships between lipophilicity and root uptake and translocation of non-ionized chemicals by barley. Pestic. Sci. 13:495-504.
9. Brigmon, R.L., Bell, N.C., Freedman, D.L., and Berry. C.J. 1998. Natural attenuation of trichloroethylene in rhizosphere soils at the Savannah River Site. J. Soil. Contamin. 7(4): 433-453.
10. Brix, H. 1993. Wastewater treatment in constructed wetlands: System design, operational, and monitoring issues. In: Constructed Wetlands for Water Quality Improvement. pp. 9-22. Moshiri, G.A., Ed., Lewis Publishers, Boca Raton, Florida.
11. Brown, K.S. 1995. The green clean: The emerging field of phytoremediation takes root. BioScience 45(9):579-582.
12. Burken, J.G. 1996. Uptake and Fate of Organic Contaminants by Hybrid Poplar Trees, PhD Dissertation. University of Iowa, Iowa City, Iowa.
13. Burken, J.G. and Schnoor, J.L. 1998. Predictive relationships for uptake of organic contaminants by hybrid poplar trees. Environ.Sci. Technol. 32:3379-3385.
14. Campbell, P.G.C., Tessier, A., Bisson, M., and Bougie, R. 1985. Accumulation of copper and zinc in the yellow water lily, Nuphar variegatum: Relationships to metal partitioning in the adjacent lake sediments. Can. J. of Fish. Aquat. Sci. 42:23-32.
15. Chapelle, F.H. 1996. Identifying redox conditions that favor the natural attenuation of chlorinated ethenes in contaminated groundwater systems. In: Proceedings of the Symposium on Natural Attentuation of Clorinated Organics in Ground Water. pp. 17-20. U.S. Environmental Protection Agency. Office of Research and Development, Washington, D.C. EPA/540/R-96/509.
16. Cole, G.A. 1994. Textbook of Limnology 4th Ed. Waveland Press, Illinois.
17. Compton, H.R., Haroski, D.M., Hirsh, S.R., and Wrobel, J.G. 1998. Pilot-scale use of trees to address VOC contamination. In: Bioremediation and Phytoremediation, Chlorinated and Recalcitrant Compounds. pp. 245-250. Wickramanayake, G.B. and Hinchee, R.E., Eds., Battelle Press, Columbus, OH.
18. Compton, A., Foust, R.D., and Salt, D. 2001. Arsenic accumulation in Potomogeton illinoiensis in Montezuma Well, Arizona. Meeting of the American Chemical Soc. Abstracts. 221(1-2):ENR22.
19. Corseuil, H.X. and Femandes, M. 1999. Co-solvency effect in aquifers contaminated with ethanol-ammended gasoline. In: In Situ and Onsite Bioremediation. 5:135-140. Alleman, B.C. and Leeson, A.L., Eds., Battelle Press, San Diego, CA.
20. Corseuil, H.X. and Moreno, F.N. 2001. Phytoremediation potential of willow trees for aquifers contaminated with ethanol-blended gasoline. Wat. Res. 35(12):3013-3017.
21. Corseuil, H.X., Aires, J.R., and Alvarez, P.J. 1996. Implications of the presence of ethanol on intrinsic bioremediation of BTX plumes in Brazil. Hazard. Waste Hazard. Mater. 13(2):213-221.
22. Cowardin, L.M., Carter, V. Golet, F.C., and LaRoe, E.T. 1979. Classification of Wetlands and Deep-water Habitats of the United States. U.S. Dept. of the Interior, Fish and Wildlife Service.
23. Cunningham, S.D. and Berti, W.R. 1993. The remediation of contaminated soils with green plants: An overview. J. Tissue Cult. Assoc. 29:207-212
24. Cunningham, S.D., Berti, W.R., and Huang, J.W. 1995. Phytoremediation of contaminated soils. Trend. Biotechnol. 13:393-397.
25. Cunningham, S.D., Shann, J.R., and Crowley, D.E. 1997. Phytoremediation of contaminated water and soil. In: Phytoremediation of Soil and Water Contaminants. pp. 2-19. Kruger, E.L., Anderson, T.A., and Coats, J.R., Eds., ACS Symposium Series No. 664. American Chemical Society, Washington, DC.
26. Davis, L.C., Vanderhoof, S., Selk, D.J., Smith, K., Goplen, B., and Erickson, L.E. 1998. Movement of chlorinated solvents and other volatile organics through plants monitored by Fourier transform infrared (FT-IR) spectrometry. J. Hazard. Subst. Res. 4:1-26.
27. de Souza, M.P., Huang, C.P.A., Chee, N., and Terry, N. 1999. Rhizosphere bacteria enhance the accumulation of selenium and mercury in wetland plants. Planta 209(2):259-263.
28. Debusk, T.A., Laughlin, R.B., and Schwartz, L.N. 1996. Retention and compartmentalization of lead and cadmium in wetland microcosms. Water Res. 30(11):2707-2716.
29. Del Ríoa, M., Fonta, R., Almelab, C., Vélezb, D., Montorob, R., and De Haro Bailón, A. 2002. Heavy metals and arsenic uptake by wild vegetation in the Guadiamar river area after the toxic spill of the Aznalcóllar mine. J. Biotechnol. 98(1):125-137.
30. Dietz, A.C. and Schnoor, J.L. 2001. Advances in phytoremediation. Environmental Health Perspectives. 109(Supple. 1):163-168.
31. DNRCD. 1983. Cape Fear River Basin Wetlands Location Socio-economic Values Water Quality Maintenance Values. N.C. Dept. of Natural Resources and Community Development & U.S. Water Resources Council, Raleigh, NC.
32. Dolar, S.G., Kenney, D.R. and Chesters, G. 1971. Mercury accumulation by Myriophyllum spicatum L. Environ. Lett. 69:191-198.
33. Dowty, R.A., Shaffer, G.P., Hester, M.W., Childers, G.W., Campo, F.M., and Greene, M.C. 2001. Phytoremediation of small-scale oil spills in fresh marsh environments: A mesocosm simulation. Marine Environ. Res. 52(3):195-211.
34. Ensley, H.E., Sharma, H.A., Barber, J.T., and Polito, M.A. 1997. Metabolism of chlorinated phenols by Lemna gibba, duckweed. In: Phytoremediation of Soil and Water Contaminants. pp. 238-253. Kruger, E.L., Anderson, T.A., and Coats, J.R., Eds., ACS Symposium Series No. 664. American Chemical Society, Washington, DC.
35. Environmental Laboratory. 1987. U.S. Army Corps of Engineers Wetlands Delineation Manual. U.S. Dept. of the Army, Waterways Experiment Station. Tech. Report Y-87-1.
36. Environmental Restoration. 1999. Decision-making Framework Guide for the Evaluation and Selection of Monitored Natural Attenuation Remedies at Department of Energy Sites. U.S. Dept. of Energy, Office of Environmental Restoration.
37. EPA. 1999. Monitored Natural Attenuation of Chlorinated Solvents. U.S. Environmental Protection Agency, Office of Research and Development, Washington, D.C. EPA/600/F-98/022.
38. EPA. 2001. A Citizen's Guide to Phytoremediation. U.S. Environmental Protection Agency, Office of Solid Waste and Emergency Response. EPA-542-F-01-002.
39. Eyre, F.H., ed. 1980. Forest Cover Types of the United States and Canada. Society of American Foresters, Washington, DC.
40. Ferro, A., Chad, J., Kjelgren, R., Chard, B., Turner, D., and Montage, T. 2001. Groundwater capture using hybrid poplar tress: Evaluation of a system in Ogden, Utah. Int. J. Phytoremed. 3(1):87-104.
41. Garrison, A.W., Nzengung, V.A., Avants, J.K., Ellingtion, J.J., Jones, W.J., and Rennels, D. 2000. Phytoremediation of p,p′-DDT and the enantiomers of o,p′-DDT. Environ. Sci. Technol. 3(1):13-40.
42. Gordon, M., Choe, N., Duffy, J., Ekuan, G., Heilman, P., Nuiznieks, I., Newman, L., Ruszaj, M., Shurtleff, B.B., Strand, S., and Wilmoth, J. 1997. Phytoremediation of trichloroethylene with hybrid poplars. In: Phytoremediation of Soil and Water Contaminants. pp. 177-185. Kruger, E.L., Anderson, T.A., and Coats, J.R., Eds., ACS Symposium Sedes No. 664. American Chemical Society, Washington, DC.
43. Gullner, G., Komives, T., and Rennenberg, H. 2001. Enhanced tolerance of transgenic poplar plants overexpressing γ-glutamylcysteine synthetase toward chloroacetanilide herbicides. J. Exp. Botany 52(358):971-979.
44. Gupta, G.C. 1980. Use of water hyacinths in wastewater treatment. J. Environ. Health 43: 80-82.
45. Hetlands, M.D., Gallagher, J.R., Daly, D.J., Hassett, D.J., and Heebink, LV. 2001. Processing of plants used to phytoremediate lead-contaminated sites. In: Phytoremediation, Wetlands, and Sediments. pp. 129-136. Leeson, A., Foote, E.A., Banks, M.K., and Magar, V.S., Eds., Battelle Press, Columbus, Ohio.
46. Hong, M.S., Farmayan, W.F., Dortch, I.J., Chiang, C.Y., McMillan, S.K., and Schnoor, J.L. 2001. Phytoremediation of MTBE from a groundwater plume. Environ. Sci. Technol. 35(6):1231-1239.
47. Hughes, J.B., Shanks, J., Vanderford, M., Lauritzen, J., and Bhadra, R. 1997. Transformation of TNT by aquatic plants and plant tissue cultures. Environ. Sci. Technol. 31(1):266-271.
48. Hutchinson, G.E. 1975. A Treatise on Limnology, Vol. III: Limnological Botany. John Wiley and Sons, New York.
49. Jain, S.K., Vasudevan, P., and Jha, N.K. 1989. Removal of some heavy metals from polluted waters by aquatic plants: Studies on duckweed and water velvet. Biological Wastes. 28:115-126.
50. Kalff, J. 2002. Limnology. Prentice Hall, Upper Saddle River, NJ.
51. Khan, A.G., Kuek, C., Chaudhry, T.M., Khoo, C.S., and Hayes, W.J. 2000. Role of plants, mycorrhizae and phytochelators in heavy metals contaminated land remediation. Chemosphere 41:197-207.
52. King, J.K., Harmon, M.S., and Gladden, J.B. 2001. Removal of mercury from an overall stream using a gypsum-amended, constucted wetland, planted with Scirpus californicus. Abstracts of Papers - American Chemical Society Meeting.
53. Kramer, U. and Chardonnens, A.N. 2001. The use of transgenic plants in the bioremediation of soils contaminated with trace elements. Appl. Microbiol. Biotechnol. 55:661-672.
54. Lancaster, R.J., Coup, M.R., and Hughes, J.W. 1971. Toxicity of arsenic present in lake weed. New Zealand Vet J. 19:141-145.
55. Landmeyer, J.E. 2001. Monitoring the effect of poplar trees on petroleum-hydrocarbon and chlorinated-solvent contaminated groundwater, Int. J. Phytoremed. 3(1): 61-85.
56. Lavid, N., Barkay, Z., and Tel-OrElisha. 2001. Accumulation of heavy metals in epidermal glands of the waterlily (Nymphaeaceae). Planta (Berlin) 212(3):313-322.
57. Lorah, M.M., Olsen, L.D., Smith, B.L., Johnson, M.A., and Fleck, W.B. 1997. Natural attenuation of chlorinated volatile organic compounds in a freshwater tidal wetland, Aberdeen Proving Ground, Maryland. U.S. Geol. Surv. Water Res. Invest. Rep., 97-4171, 95.
58. Lorah, M.M. and Olsen, L.D. 1999a. Natural attenuation of chlorinated volatile organic compounds in a freshwater tidal wetland: Field evidence of anaerobic biodegradation. Water Res. Res. 35(12):3811-3827.
59. Lorah, M.M. and Olsen, L.D. 1999b. Degradation of 1,1,2,2-tetrachloroethane in a freshwater tidal wetland: Field and laboratory evidence. Environ. Sci. Technol. 33:227-234.
60. Lorah, M.M., Olsen, L.D., Caponel, D.G., and Baker, J.E. 2001. Biodegradation of trichloroethylene and its anaerobic daughter products in freshwater wetland sediments. Bioremed. J. 5(2):101-118.
61. Lytle, J.S. and Lytle, T.F. 2001. Use of plants for toxicity assessment of estuarine ecosystems Environ. Toxicol. Chem. 20(1):68-83.
62. Macek, T., Mackova, M., and Kas, J. 2000. Exploitation of plants for the removal of organics in environmental remediation. Biotechnol. Advan. 18:23-34.
63. Matso, K. 1995. Mother nature's pump and treat. (use of phytoremediation to treat contaminated soil and groundwater). Civil Eng. 65:46-49.
64. McCormick, J. and Somes, H.A. 1982. The Coastal Wetlands of Maryland. Maryland Dept. of Natural Resources Coastal Zone Management Program.
65. McCutcheon, S.C. and Rock, S.A. 2001. Phytoremediation: State of the science conference and other developments, Int. J. Phytoremed. 3(1): 1-11.
66. Medina, V.F., Larson, S.L., Bergstedt, A.E., and McCutcheon, S.C. 2000. Phyto-removal of trinitrotoluene from water with batch kinetic studies. Wat. Res. 34(10):2713-2722.
67. Meharg, A.A. and Cairney, J.W.G. 2000. Ectomycorrhizas-extending the capabilities of rhizosphere remediation? Soil Biol. Biochem. 32:1475-1484.
68. Mendelssohn, I.A. and McKee, K.L. 1988. Spartina alterniflora die-back in Louisiana: Time-course investigation of soil waterlogging effects. J. Ecol. 72(2):509-521.
69. Moffat, A.S. 1995, Plants proving their worth in toxic metal cleanup. Science 269:302-303.
70. Moshiri, G.A. (Ed.) 1993. Constructed Wetlands for Water Quality Improvement. Lewis Publishers, Boca Raton, Florida.
71. Muramoto, S. and Oki, Y. 1983. Removal of some heavy metals from polluted water by water hyacinth. Bull. Environ. Contamin. Toxicol. 30: 170-177.
72. Nadège, E., Butler, D.L., Fryar, A.E., and Coyne, M.S. 2001. Trichloroethene biodegradation potential in wetland soils and paleowetland sediments. Bioremed. J. 5(1):27-50.
73. Nebel, B.J. and Wright, R.T. 1996. Environmental Science. 5th Ed. Prentice Hall, Upper Saddle River, New Jersey.
74. Neitch, C.T., Morris, J.T., and Vroblesky, D.A. 1999. Biophysical mechanisms of trichloroethene uptake and loss in bald cypress growing in shallow contaminated groundwater. Environ. Sci. Technol. 33(17):2899-2904.
75. Newman, L.A., Doty, S.L., Gery, K. L., Heilman, P. E., Muiznieks, I. E., Shang, T.Q., Siemieniec, S.T., Strand, S.E., Wang, X.E., Wilson, A.M., and Gordon, M.P. 1998. Phytoremediation of organic contaminants: A review of phytoremediation research at the University of Washington. J. Soil Contamin. 7(4):531-542.
76. Newman, L.A., Wang, X., Muiznieks, I.A., Ekuan, G., Ruszaj, M., Cortellucci, R., Domroes, D., Karcig, G., Newman, T., Crampton, R.S., Hashmony, R.A., Yost, M.G., Heilman, P.E., Duffy, J., Gordon, M.P., and Strand, S.E. 1999. Remediation of trichloroethylene in an artificial aquifer with trees: A controlled field study. Environ. Sci. Technol. 33(13):2257-2265.
77. Nzengung, V.A. and Jeffers, P. 2001. Sequestration, phytoreduction, and phytooxidation of halogenated organic chemicals by aquatic and terrestriai plants. Int. J. Phytoremed. 3(1):13-40.
78. Odum, H.T. 1975. Marine ecosystems with energy circuit diagrams. In: Modeling of Marine Systems. pp. 127-151. J.C.J. Nihoul, Ed., Elsevier Oceanography Ser. 10. Elsevier Scientific, NY.
79. Odum, W.E., Smith, T.J., Hoover, J.K., and McIvor, C.C. 1984. The Ecology of Tidal Freshwater Marshes of the United States East Coast: A Community Profile. U.S. Dept. of the Interior, Fish and Wildlife Service, FWS/OBS-83/17.
80. Olsen, L.D. and Lorah, M.M. 1998. Natural attenuation of chlorinated VOC's in wetlands. Ground Water Currents (EPA). 29:1-3.
81. Orchard, B.J., Doucette, W.J., Chard, J.K., and Bugbee, B. 2000a. A novel laboratory system for determining fate of volatile organic compounds in planted systems. Environ. Toxicol. Chem. 19(4):888-894.
82. Orchard, B.J., Doucette, W.J. Chard, J.K. and Bugbee, B. 2000b. Uptake of trichloroethylene by hybrid poplar trees grown hydroponically in flow- through plant growth chambers. Environ. Toxicol. Chem. 19(4):895-903.
83. Outridge, P.M. and Noller, B.N. 1991. Accumulation of toxic trace elements by freshwater vascular plants. Rev. Environ. Contamin. Toxicol. 121:1-63.
84. Qianxin, L., Mendelssohn, I.A., Suidan, M.T., Lee, K., and Venosa, A.D. 2002. The dose-response relationship between No. 2 fuel oil and the growth of the salt marsh grass, Spartina alterniflora. Marine Pollut. Bull. 44(9):897-902.
85. Quinn, J.J., Negri, M.C., Hinchman, R.R., Moos, L.P., Woznaik, J.B., and Gatliff, E.G. 2001. Predicting the effect of deep-rooted hybrid poplars on the groundwater flow system at a large-scale phytoremediation site. Int. J. Phytoremed 3(1):41-60.
86. Raskin, I. 1996. Plant genetic engineering may help with environmental cleanup. Proc. Nat. Acad. Sci. U.S. Am. 93(8):3164-3166.
87. Reay, P.F. 1972. The accumulation of arsenic from arsenic-rich natural waters by aquatic plants. J. Appl. Ecol. 9:557-565.
88. Reid, G.K. and Wood, R.D. 1976. Ecology of Inland Waters and Estuaries. D.Van Nostrand Co., New York.
89. Renner, R. 1999. EPA draft almost doubles safe dose of perchlorate in water. Environ. Sci. Technol. 33:110A-111A.
90. Rice, P.J., Anderson, T.A., and Coats, J.R. 1997. Phytoremediation of herbicide-contaminated surface water with aquatic plants. In: Phytoremediation of Soil and Water Contaminants. pp. 133-151. Kruger, E.L., Anderson, T.A. and Coats, J.R., Eds., ACS Symposium Series No. 664. American Chemical Society, Washington, DC.
91. Richard, D.E., England, K.P., and Connell, D. 2001. Wetland restoration remediates chlorinated solvents in groundwater and protects surface water. In: Phytoremediation, Wetlands, and Sediments. pp. 105-112. Leeson, A., Foote, E.A., Banks, M.K., and Magar, V.S., Eds., Battelle Press, Columbus, Ohio.
92. Robinson, B., Outred, H., Brooks, R., and Kirkman, J. 1995. The distribution and fate of arsenic in the Waikato River System, North Island, New Zealand. Chem. Speciat. Bioavail. 7: 89-96.
93. Rubin, E. and Ramaswami, A. 2001. The potential for phytoremediation of MTBE. Water Res. 35(5):1348-1653.
94. Rupassara, S.I., Larson, R.A., and Sims, G.K. 2001. Biodegradation of atrazine in aquatic ecosystems. In: Phytoremediation, Wetlands, and Sediments. pp. 181-188. Leeson, A., Foote, E.A., Banks, M.K., and Magar, V.S., Eds., Battelle Press, Columbus, Ohio.
95. Salt, D.E., Blaylock, M., Kunmar, N.P.B.A., Dushenkov, V., Ensley, B.D., and Chet, I. 1995. Phytoremediation: a novel strategy for the removal of toxic metals from the environment using plants. Biotechnology 13:468-474.
96. Salt, D.E., Smith, R.D., and Raskin. I. 1998. Phytoremediation. Annu. Rev. Plant Physiol. Plant Mol. Biol. 49:643-668.
97. Schnabel, W.E. and White, D.M. 2001. The effect of mycorrhizal fungi on the fate of PCBs in two vegetated systems. Int. J. Phytoremed. 3(2):203-220.
98. Schnoor, J.L., Licht, L.A., McCutcheon, S.C., Wolfe, N.L., and Carreira, L.H. 1995. Phytoremediation of organic and nutrient contaminants. Environ. Sci. Technol. 29:318A-323A.
99. Sikora, F.J., Behrends, L.L., Phillips, W.D., Coonrod, H.S., Bailey, E., and Bader, D.F. 1997. A microcosm study on remediation of explosives-contaminated groundwater using constructed wetlands. Annal. N.Y. Acad. Sci. 829:202-218.
100. Stanley, R.A. 1974. Toxicity of heavy metals and salts to Eurasian watermilfoil (Myriophyllum spicatum). Arch Environ. Contam. Toxicol. 2:331-340.
101. Stoeckel, D.M., Mudd, E.C., and Entry, J.A. 1997. Degradation of persistent herbicides in riparian wetlands. In: Phytoremediation of Soil and Water Contaminants. pp. 114-132. Kruger, E.L., Anderson, T.A. and Coats, J.R. Eds., ACS Symposium Series No. 664. American Chemical Society, Washington, DC.
102. Stumm, W. and Morgan, J.J. 1996. Aquatic Chemistry: Chemical Equilibria and Rates in Natural Waters, 3rd Ed., John Wiley and Sons, New York.
103. Susarla, S., Bacchus, S.T., Harvey, G., and McCutcheon, S.C. 2000. Phytotransformations of perchlorate contaminated waters. Environ. Technol. 21(9):1055-1065.
104. Susarla, S., Medinab, V.F., and McCutcheon, S.C. 2002. Phytoremediation: An ecological solution to organic chemicai contamination. Ecol. Eng. 18(5):647-658.
105. Thompson, P.L., Pamer, L.A., Guffey, A.P., and Schnoor, J.L. 1998. Decreased transpiration in poplar trees exposed to 2,4,6-trinitrotoluene. Environ. Toxicol. Chem. 17(5):902-906.
106. Vajpayee, P., Rai, U.N., Ali, M.B., Tripathi, R.D., Yadav, V., Sinha, S., and Singh, S.N. 2001. Chromium-induced physiologic changes in Vallisneria spiralis L. and its role in phytoremediation of tannery effluent. Bull. Environ. Contam. Toxicol. 67:246-256.
107. Valiela, I., Teal, J.M., and Persson, N.Y. 1976. Production and dynamics of experimentally enriched salt marsh vegetation: Below ground biomass. Limnol. Oceanogr. 21:245-252.
108. Vroblesky, D.A., Nietch, C.T., and Morris, J.T. 1999. Chlorinated ethenes from groundwater in tree trunks. Environ. Sci. Technol. 33:510-515.
109. Wang, C. and Hughes, J.B. 2001. Phytotransformation of TNT in Myriophyllum aquaticum: A complex pathway through hydroxylamino intermediates. In: Phytoremediation, wetlands, and sediments, pp. 85-94. Leeson, A., Foote, E.A., Banks, M.K., and Magar, V.S., Eds., Battelle Press, Columbus, Ohio.
110. Wang, Q., Cui, Y., and Dong, Y. 2002. Phytoremediation of polluted waters: potentials and prospects of wetland plants. Acta Biotechnol. 22(1-2):199-208.
111. Wetzel, R.G. 1983. Limnology, 2nd Ed., Saunders College Publishers, Philadelphia.
112. Wetzel, R.G. 1993. Constructed wetlands: Scientific foundations are critical. In: Constructed Wetlands for Water Quality Improvement. pp. 3-8. Moshiri, G.A., Ed., Lewis Publishers, Boca Raton, Florida.
113. Wetzel, R.G. and Likens, G.E. 2000. Limnological Analysis, 3rd Ed. Springer-Verlag, New York.
114. White, K.D. and Burken, J.G. 1999. Natural treatment and on-site processes. Water Environ. Res. 71:676-685.
115. WieBner, A., Kuschk, P., Kastner, M., and Stottmeister, U. 2002. Abilities of helophyte species to release oxygen into rhizospheres with varying redox conditions in laboratory-scale hydroponic systems, Int. J. Phytoremed. 4(1):1-15.
116. Wiedemeier, T.H., Swanson, M.A., Moutoux, D.E., Gordon, E.K., Wilson, J.T, Wilson, B.H., Kampbell, D.H., Haas, P.E., Miller, R.N., Hansen, J.E., and Chapelle, F.H. 1998. Technical Protocol for Evaluating Natural Attenuation of Chlorinated Solvents in Ground Water. United States Environmental Protection Agency, Office of Research and Development, Washington D.C. EPA/600/R-98/128.
117. Williams, J.B. and Pendleton, E.C. 1982. Aspects of Succession in Big Marsh, Kent County, Maryland, A Marsh/Swamp Forest Ecosystem Impacted by Peat Mining. Maryland. Coastal Resources Division Report to NOAA Office of Coastal Zone Management, Annapolis, MD.
118. Williams, J.B. and Pinder, J.E. 1992. Groundwater contribution to streamflow in a Southeastern coastal plain stream. Water Res. Bull. 26(2):343-352.
119. Williams, J.B., Coleman, H.V., and Pearson, J. 1999. Implications of pH effects and succession for phytoremediation in wetlands. In: Proceedings of the 1998 National Conference on Environmental Remediation Science and Technology. pp. 243-248. Uzochukwu, G.A. and Reddy, G.B., Eds., Battelle Press, Columbus, Ohio.
120. Williams, J.B., Williams, L., Baldwin, N., Knight, T., Moses, T., Grant, G., and Baladi, S. 2002. Spatial and temporal variability of monitored natural attenuation conditions in wetlands. In: Proceedings of the 2002 National Conference on Environmental Remediation Science and Technology. Uzochukwu, G.A. and Reddy, G.B., Eds., Battelle Press, Columbus, Ohio. in press.
121. Wilson, P.C., Whitwell, T., and Klaine, S.J. 2000. Metalaxyl and simazine toxicity to and uptake by Typha latifolia. Arch. Environ. Contam. Toxicol. 39:282-288.
122. Xia, H., Wu, L., and Tao, Q. 2001. Water hyacinth accelerating the degradation of malathion in aqueous solution. China Environ. Sci. 21(6):553-555.
123. Zurayk, R., Sukkariyah, B., Baalbaki, R., and Abi Ghanem, D. 2002. Ni phytoaccumulation in Mentha aquatica L. and Mentha sylvestris L. Water, Air, Soil Pollut. 139(1-4):355-364.