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Original Articles

Heavy Metal Phytoremediation from Aquatic Ecosystems with Special Reference to Macrophytes

Pages 697-753 | Published online: 04 Sep 2009

REFERENCES

  • Ahn , K. H. , Song , K. G. , Cha , H. Y. and Yeom , I. T. 1999 . Removal of ions in nickel electroplating rinse water using low-pressure nanofiltration . Desalination , 122 : 77 – 84 .
  • Alam , M. G. M. , Snow , E. T. and Tanaka , A. 2003 . Arsenic and heavy metal contamination of vegetables grown in Samta village, Bangladesh . Sci. Total Environ. , 308 : 83 – 96 .
  • 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 : 2171 – 2182 .
  • Aliane , A. , Bounatiro , N. , Cherif , A. T. and Akretche , D. E. 2001 . Removal of chromium from aqueous solution by complexation–ultrafiltration using a water-soluble macroligand . Water Res. , 35 ( 9 ) : 2320 – 2326 .
  • Ana , Y. and Kampbell , D. H. 2003 . Total, dissolved, and bioavailable metals at Lake Texoma marinas . Env. Pollut. , 122 : 253 – 259 .
  • Andre , I. , Schneider , H. and Rubio , J. 1999 . Sorption of heavy metal ions by the nonliving biomass of freshwater macrophytes . Environ. Sci. Technol. , 33 : 2213 – 2217 .
  • Arber , A. 1920 . A study of aquatic angiosperms , 436 Cambridge : Cambridge University Press .
  • Arora , A. , Saxena , S. and Sharma , D. K. 2006 . Tolerance and phytoaccumulation of chromium by three Azolla species . W. J. Microbiol. Biotechnol. , 22 : 97 – 100 .
  • Aslam , M. M. , Malik , M. , Baig , M. A. , Qazi , I. A. and Iqbal , J. 2007 . Treatment performances of compost-based and gravel-based vertical flow wetlands operated identically for refinery wastewater treatment in Pakistan . Ecol. Eng. , 30 : 34 – 42 .
  • Aulio , K. 1986 . Aquatic macrophytes as indicators of heavy metal pollution , vol. 68 , 171 – 174 . Finland : Publication of the Water Research Institute, National Board of Waters .
  • Axtell , N. R. , Sternberg , S. P. K. and Claussen , K. 2003 . Lead and nickel removal using Microspora Lemna minor. . Biores. Technol. , 89 : 41 – 48 .
  • Ayoade , G. O. , Sharma , B. M. and Sridhar , M. K. C. 1982 . Trials of Pistia stratiotes L. as animal feed . Aquat. Plant Manage. , 20 : 56 – 57 .
  • Baker , A. J. M. and Brooks , R. R. 1989 . Terrestrial higher plants which hyperaccumulate metallic elements: a review of their distribution, ecology and phytochemistry . Biorecovery. , 1 : 81 – 126 .
  • Balkis , N. and Cagaty , M. N. 2001 . Factors controlling metal distributions in the surface sediments of the Erdek Bay, Sea of Marmara, Turkey . Environ. Inter. , 27 : 1 – 13 .
  • Balsberg-Pahlsson , A. M. 1989 . Toxicity of heavy metals (Zn, Cu, Cd, Pb) to vascular plants: A literature review . Water Air Soil Pollut. , 47 : 287 – 319 .
  • Banuelos , G. S. and Meeks , D. W. 1990 . Accumulation of Se in plants grown on selenium treated soil . J. Environ. Quality. , 19 : 772 – 777 .
  • Barrett , S. C. H. and Kohn , J. R. 1991 . “ Genetic and evolutionary consequences of small population size in plants: Implications for conservation ” . In Genetics and conservation of rare plants , Edited by: Falk , D. A. and Holsinger , K. E. 3 – 30 . New York : Oxford University Press .
  • Bassi , M. , Grazia-Corradi , M. and Realini , M. 1990 . Effect of Cr (VI) in to two fresh water plants, Lemna minor Pistia stratiotes: Biochemical and physiological observations . Cytobious , 62 : 101 – 109 .
  • Bennicelli , R. , Stezpniewska , Z. , Banach , A. , Szajnocha , K. and Ostrowski , J. 2004 . The ability of Azolla caroliniana to remove heavy metals (Hg(II), Cr(III), Cr(VI)) from municipal waste water . Chemosphere , 55 : 141 – 146 .
  • Blake , G. , Kaigate , B. , Fourcy , A. and Boutinc , C. 1987 . Incorporation of cadmium by water hyacinth . Water Sci. Technol. , 19 : 123 – 128 .
  • Blaylock , M. J. and Huang , J. W. 2000 . “ Phytoextraction of metals ” . In Phytoremediation of toxic metals using plants to clean up the environment , Edited by: Raskin , I. and Ensley , B. D. 53 – 70 . New York : John Wiley and Sons .
  • Boonyapookana , B. , Upatham , E. S. , Kruatrachue , M. , Pokethitiyook , P. and Singhakaew , S. 2002 . Phytoaccumulation and phytotoxicity of cadmium and chromium in duckweed Wolffia globosa . Int. J. Phytoremediation , 4 ( 2 ) : 87 – 100 .
  • Boyd , R. S. and Martens , S. N. 1992 . “ The raison d'etre for metal hyperaccumulation in plants ” . In The vegetation of ultramafic (serpentine) soils , Edited by: Baker , A. J. M. , Proctor , J. and Reeves , R. D. 279 – 289 . Andover, UK : Intercept .
  • Boyd , R. S. and Martens , S. N. 1998 . The significance of metal hyperaccumulation for biotic interactions . Chemoecology. , 8 : 1 – 7 .
  • Bragato , C. , Brix , H. and Malagoli , M. 2006 . Accumulation of nutrients and heavy metals in Phragmites australis (Cav.) Trin. ex Steudel and Bolboschoenus maritimus (L.) Palla in a constructed wetland of the Venice lagoon watershed . Environ. Pollut. , 144 : 967 – 975 .
  • Brix , H. and Schierup , H. 1989 . The use of aquatic macrophytes in water pollution control . Ambio. , 18 : 100 – 107 .
  • Brooks , R. R. , Morrison , R. S. , Reeves , R. D. , Dudley , T. R. and Akman , Y. 1979 . Hyperaccumulation of nickel by Alyssum Linnaeus (Cruciferae) . Proc. R. Soc. London. Ser.B. , 203 : 368 – 403 .
  • Brooks , R. R. , Morrison , R. S. , Reeves , R. D. and Malaisse , F. 1978 . Copper and cobalt in African species of Aeolanthus Mart. (Plectranthinae, Labiatae) . Plant and Soil , 50 : 503 – 507 .
  • Brooks , R. R. and Robinson , B. H. 1998 . “ Aquatic phytoremediation by accumulator plants ” . In Plants that hyperaccumulate heavy metals: Their role in archaeology, microbiology, mineral exploration, phytomining and phytoremediation , Edited by: Brooks , R. R. 203 – 226 . Wallingford : CAB International .
  • Brooks , R. R. , Trow , J. M. and Veillon , J. M. 1981 . Studies on Manganese accumulating Alyxia from New Caledonia . Taxon. , 30 : 420 – 423 .
  • Bryan , G. W. 1976 . “ Heavy metal contamination in the sea ” . In Marine pollution , Edited by: Johston , R. 185 – 302 . London : Academic Press .
  • Bryan , G. W. and Langston , W. J. 1992 . Bioavailability, accumulation and effects of heavy metals in sediments with special reference to the United Kingdom: A review . Env. Pollut. , 76 : 89 – 131 .
  • Bryan , G. W. , Langston , W. J. , Hummerstone , L. G. and Burt , G. R. 1985 . A guide to the assessment of heavy metal contamination in estuaries using biological indicators , Plymouth, Devon : Marine Biological Association of the United Kingdom . Occasional Publication Number 4
  • Burton , J. D. and Stratham , P. J. 1990 . “ Trace metals in sea water ” . In Heavy metals in the marine environment , Edited by: Furness , R. W. and Rainbow , P. S. 5 – 25 . Boca Raton, Fla. : CRC Press .
  • Cairns , J. , Smith , E. P. and Orvos , D. 1988 . “ The problem of validating simulation of hazardous exposure in natural systems ” . In Proceedings of the 1988 Summer Computer Conference , Edited by: Barnett , C. C. and Holms , W. M. 448 – 454 . San Diego, Calif. : The Society for Computer Simulation International .
  • 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. Fish. Aquat. Sci. , 42 : 23 – 32 .
  • Cardwell , A. J. , Hawker , D. W. and Greenway , M. 2002 . Metal accumulation in aquatic macrophytes from southeast Queensland, Australia . Chemosphere. , 48 : 653 – 663 .
  • Cavaco , S. A. , Fernandes , S. , Quina , M. M. and Ferreira , L. M. 2007 . Removal of chromium from electroplating industry effluents by ion exchange resins . J. Hazardous Materials , 144 : 634 – 638 .
  • Chanakya , H. N. , Borgaonkar , S. , Meena , G. and Jagadish , K. S. 1993 . Solid phase biogas production with garbage or water hyacinth . Bioresour. Technol. , 46 : 227 – 231 .
  • Chandra , R. , Yadav , S. , Bharagava , R. N. and Murthy , R. C. 2007 . Bacterial pretreatment enhances removal of heavy metals during treatment of post-methanated distillery effluent by Typha angustata L . J. Environ. Manage. , 88 ( 4 ) : 1016 – 1024 .
  • Charpentier , S. , Garnier , J. and Flaugnatti , R. 1987 . Toxicity and bioaccumulation of cadmium in experimental cultures of duckweed, Lemna polyrrhiza L . Bull. Environ. Contam. Toxicol. , 38 : 1055 – 1061 .
  • Chibgo , F. E. , Smith , R. W. and Shore , F. L. 1982 . Uptake of arsenic, cadmium, lead and mercury from polluted water by the water hyacinths Eichhornia crassipes Environ. Pollut . Ser. A , 27 : 31 – 36 .
  • Chojnacka , K. 2006 . The application of multielemental analysis in the elaboration of technology of mineral feed additives based on Lemna minor biomass . Talanta , 70 : 966 – 972 .
  • Chung , I. H. and Jeng , S. S. 1974 . Heavy metal pollution of Ta-Tu River . Bull. Inst. Zool. Acad. Sin. , 13 : 69 – 73 .
  • Ciria , M. P. , Solano , M. L. and Soriano , P. 2005 . Role of macrophyte Typha latifolia in a constructed wetland for wastewater treatment and assessment of its potential as a biomass fuel . Biosystems Eng. , 92 ( 4 ) : 535 – 544 .
  • Clemens , S. , Kim , E. J. , Neumann , D. and Schroeder , J. I. 1999 . Tolerance to toxic metals by a gene family of phytochelatin synthases from plants and yeast . EMBO J. , 18 : 3325 – 3333 .
  • Clemens , S. , Palmgren , M. G. and Krämer , U. 2002 . A long way ahead: Understanding and engineering plant metal accumulation . Trends Plant Sci. , 7 ( 7 ) : 309 – 315 .
  • Clemens , S. , Schroeder , J. I. and Degenkolb , T. 2001 . Caenorhabditis elegans expresses a functional phytochelatin synthase . Eur. J. Biochem. , 268 : 3640 – 3643 .
  • Cobbett , C. S. 1999 . A family of phytochelatin synthase genes from plant, fungal and animal species . Trends Plant Sci. , 4 : 335 – 337 .
  • Cobbett , C. S. 2000 . Phytochelatin biosynthesis and function in heavy-metal detoxification . Curr. Opin. Plant Biol. , 3 : 211 – 216 .
  • Cobbett , C. S. 2000 . Phytochelatins and their roles in heavy metal detoxification . Plant Physiol. , 123 : 825 – 832 .
  • Cobbett , C. S. , May , M. J. , Howden , R. and Rolls , B. 1998 . The glutathione-deficient, cadmium-sensitive mutant, cad2-1, of Arabidopsis thaliana is deficient in gamma-glutamylcysteine synthetase . Plant J. , 16 : 73 – 78 .
  • Cohen-Shoel , N. , Barkay , Z. , Ilzycer , D. , Gilath , L. and Tel-Or , E. 2002 . Biofiltration of toxic elements by Azolla biomass . Water, Air, Soil Pollut. , 135 : 93 – 104 .
  • Concas , A. , Ardau , C. , Cristini , A. , Zuddas , P. and Cao , G. 2006 . Mobility of heavy metals from tailings to stream waters in a mining activity contaminated site . Chemosphere , 63 : 244 – 253 .
  • Cooley , T. N. and Martin , D. F. 1977 . Factors affecting distribution of the trace elements in aquatic plants water hyacinth . J. Inorganic Nuclear Chem. , 39 ( 10 ) : 1893 – 1896 .
  • Cooley , T. N. and Martin , D. F. 1980 . Factors affecting distribution of the trace elements in aquatic plants: Success and limitation of the coordination model . J. Inorganic Nuclear Chem. , 42 ( 1 ) : 151 – 153 .
  • Costa-Pierce , B. A. 1998 . Preliminary investigation of an integrated aquaculture-wetland ecosystem using tertiary-treated municipal wastewater in Los Angeles County, California . Ecol. Eng. , 10 : 341 – 354 .
  • Cronk , J. K. 1996 . Constructed wetlands to treat wastewater from dairy and swine operations: A review . Agric. Ecosyst. Environ. , 58 : 97 – 114 .
  • Crowder , A. 1991 . Acidification, metals and macrophytes . Environ. Pollut. , 71 ( 2–4 ) : 171 – 203 .
  • Cymerman , A. S. and Kempers , A. J. 2001 . Concentration of heavy metals and plant nutrients in water, sediments and aquatic macrophytes of anthropogenic lakes (former open cut brown coal mines) differing in stage of acidification . Sci. Total Environ. , 281 : 87 – 98 .
  • Das , P. , Samantaray , S. and Rout , G. R. 1997 . Studies on cadmium toxicity in plants: A review . Environ. Pollut. , 98 : 29 – 36 .
  • De Fillippis , L. F. 1979 . The effect of sub-lethal concentrations of mercury and zinc in Chlorella: The counteraction of metal toxicity by selenium and sulphhydryl compounds . Z. Pflanzenphysiol. , 93 : 63 – 68 .
  • De , A. K. , Sen , A. K. , Modhak , D. P. and Jana , S. 1985 . Studies on toxic effects of Hg (II) on Pistia stratiotes . Water, Air and Soil Pollut. , 24 : 351 – 360 .
  • 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 .
  • 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 .
  • DeBusk , T. A. and Reddy , K. R. 1987 . “ Wastewater treatment using floating aquatic macrophytes: Contaminant removal processes and management strategies ” . In Aquatic plants for water treatment and resource recovery , Edited by: Reddy , K. R. and Smith , W. H. 643 – 656 . Orlando, Fla. : Magnolia Publishing, Inc. .
  • Delgado , M. , Bigeriego , M. and Guardiola , E. 1993 . Uptake of Zn, Cr, and Cd by water hyacinth . Water Res. , 27 : 269 – 272 .
  • Demirezen , D. and Aksoy , A. 2004 . Accumulation of heavy metals in Typha angustifolia (L.) and Potamogeton pectinatus (L.) living in Sultan Marsh (Kayseri, Turkey) . Chemosphere , 56 : 685 – 696 .
  • Deng , H. , Ye , Z. H. and Wong , M. H. 2004 . Accumulation of lead, zinc, copper and cadmium by 12 wetland plant species thriving in metal contaminated sites in China . Environ. Pollut. , 132 : 29 – 40 .
  • Denny , P. 1997 . Implementation of constructed wetlands in developing countries . Water Sci. Technol. , 35 : 27 – 34 .
  • Devlin , R. M. R. 1967 . Plant physiology , 564 New York : Reinhold .
  • Dierberg , F. E. , DeBusk , T. A. and Goulet , N. A. Jr. 1987 . “ Removal of copper and lead using a thin film technique ” . In Aquatic plants for water treatment and resource recovery , Edited by: Reddy , K. B. and Smith , W. H. 497 – 504 . Orlando, Fla. : Magnolia Publishing Inc. .
  • Dirilgen , N. and Inel , Y. 1994 . Effects of zinc and copper on growth and metal accumulation in duckweed, Lemna minor . Bull. Environ. Contam. Toxicol. , 53 : 442 – 449 .
  • Dolar , S. G. , Kenney , D. R. and Chesters , G. 1971 . Mercury accumulation by Myriophyllum spicatum L . Environ. Lett. , 69 : 191 – 198 .
  • Domingo , J. L. 1989 . Cobalt in the environment and its toxicological implications . Rev. Environ. Cont. Toxicol. , 108 : 105 – 132 .
  • Dushenkov , V. and Kapulnik , Y. 2000 . “ Phytofiltration of metals ” . In Phytoremediation of toxic metals—using plants to clean-up the environment , Edited by: Raskin , I. and Ensley , B. D. 89 – 106 . New York : John Wiley and Sons, Inc. .
  • Dushenkov , V. , Kumar , P. B. A. N. , Motto , H. and Raskin , I. 1995 . Rhizofiltration—the use of plants to remove heavy metals from aqueous streams . Environ. Sci. Technol. , 29 ( 5 ) : 1239 – 1245 .
  • Ebbs , S. D. and Kochian , L. V. 1998 . Phytoextraction of zinc by oat (Avena sativa), barley (Hordeum vulgare), and Indian mustard (Brassica juncea) . Environ. Sci. Technol. , 32 ( 6 ) : 802 – 806 .
  • Eccles , H. 1999 . Treatment of metal-contaminated wastes: Why select a biological process? . Trends Biotechnol. , 17 : 462 – 465 .
  • Elifantz , H. and Tel-Or , E. 2002 . Heavy metal biosorption by plant biomass of the macrophyte Ludwigia stolonifera . Water Air Soil Pollut. , 141 : 207 – 218 .
  • Environmental Information Center . 1972 . ENFO Newsletter , Gainesville, Fla. : Florida Conservation Foundation, Inc .
  • Ernst , W. H. O. , Verkleij , J. A. C. and Schat , H. 1992 . Metal tolerance in plants . Acta Bot. Neeri. , 41 : 229 – 248 .
  • Feng , X. , Wu , Z. and Chen , X. 2007 . Removal of metal ions from electroplating effluent by EDI process and recycle of purified water . Sep. Purification Technol. , 57 : 257 – 263 .
  • Fett , J. P. , Cambraia , J. , Oliva , M. A. and Jordao , C. P. 1994 . Absorption and distribution of Cd in water hyacinth plants . J Plant Nutr. , 17 ( 7 ) : 1219 – 1230 .
  • Finkelman , R. B. and Gross , P. M. K. 1999 . The types of data needed for assessing the environmental and human health impacts of coal . Int. J. Coal Geology , 40 : 91 – 101 .
  • Flathman , P. E. and Lanza , G. R. 1998 . Phytoremediation: Current views on an emerging green technology . J. Soil Contam. , 7 ( 4 ) : 415 – 435 .
  • Fogarty , R. V. , Dostalek , P. , Patzak , M. , Votruba , J. , Tel-Or , E. and Tobin , J. M. 1999 . Metal removal by immobilised and non-immobilised Azolla filiculoides . Biotechnol. Tech. , 13 : 533 – 538 .
  • Forstner , U. 1995 . “ Land contamination by metals: Global scope and magnitude of problem ” . In Metal speciation and contamination of soil , Edited by: Allen , H. E. , Huang , C. P. , Bailey , G. W. and Bowers , A. R. 1 – 33 . Boca Raton, Fla. : CRC Press .
  • Fostner , U. and Whittman , G. T. W. 1979 . Metal pollution in the aquatic environment , 486 Berlin, Heidelberg : Springer-Verlag .
  • Forstner , U. and Wittmann , G. T. W. 1981 . Metal pollution in the aquatic environment , Berlin : Springer-Verlag .
  • Fritioff , A. and Greger , M. 2003 . Aquatic and terrestrial plant species with potential to remove heavy metals from stormwater . Int. J. Phytoremed. , 5 : 211 – 224 .
  • Fritioff , A. and Greger , M. 2006 . Uptake and distribution of Zn, Cu, Cd, and Pb in an aquatic plant Potamogeton natans. . Chemosphere , 63 : 220 – 227 .
  • Fritioff , A. , Kautsky , L. and Greger , M. 2005 . Influence of temperature and salinity on heavy metal uptake by submersed plants . Environ. Poll. , 133 : 265 – 274 .
  • Fumbarov , T. S. , Goldsbrough , P. B. , Adam , Z. and Tel-Or , E. 2005 . Characterization and expression of a metallothionein gene in the aquatic fern Azolla filiculoides under heavy metal stress . Planta , 223 : 69 – 76 .
  • Gardea Torresdey , J. L. 2003 . Phytoremediation: Where does it stand and where will it go? . Environ. Progress , 22 ( 1 ) : A2 – A3 .
  • Gardea Torresdey , J. L. , Peralta-Videa , J. R. , Rosa , G. D. L. and Parson , J. G. 2005 . Phytoremediation of heavy metals and study of the metal coordination by x-ray spectroscopy . Coordination Chem. Rev. , 17–18 : 1797 – 1810 .
  • Gisbert , C. , Ros , R. , De , H. A. , Walker , D. J. , Bernal , M. P. , Serrano , R. and Navarro-Avino , J. 2000 . A plant genetically modified that accumulates Pb is especially promising for phytoremediation . Biochem. Biophys. Res. Commun. , 303 : 440 – 445 .
  • Glover-Kerkvilet , J. 1995 . Environmental assault on immunity . Environ. Health Perspectives. , 103 : 236 – 237 .
  • Gorbi , G. and Companini , G. 1987 . Heavy metal distribution in freshwater ecosystems . L'Igiene Moderna. , 88 : 137 – 152 .
  • Gothberg , A. and Greger , M. 2006 . Formation of methyl mercury in an aquatic macrophyte . Chemosphere , 65 : 2096 – 2105 .
  • Gothberg , A. , Greger , M. and Bengtsson , B. E. 2002 . Accumulation of heavy metals in water spinach (Ipomoea aquatica) cultivated in the Bangkok region, Thailand . Environ. Toxicol. Chem. , 21 ( 9 ) : 1934 – 1939 .
  • Goulet , R. R. , Lalonde , J. D. , Munger , C. , Dupuis , S. , Dumont-Frenette , G. , Premont , S. and Campbell , P. G. C. 2005 . Phytoremediation of effluents from aluminum smelters: A study of Al retention in mesocosms containing aquatic plants . Water Res. , 39 ( 11 ) : 2291 – 2300 .
  • Greenway , M. , Dale , P. and Chapman , H. 2003 . An assessment of mosquito breeding and control in four surface flow wetlands in tropical–subtropical Australia . Water Sci. Technol. , 48 : 121 – 128 .
  • Greenway , M. and Simpson , J. S. 1996 . Artificial wetlands for wastewater treatment, water reuse and wildlife in Queensland, Australia . Water Sci. Technol. , 33 : 221 – 229 .
  • Greger , M. 1999 . “ Metal availability and bioconcentration in plants ” . In Heavy metal stress in plants: From molecule to ecosystems , Edited by: Prasad , M. N. V. and Hagemeyer , J. Berlin, Heidelberg, , Germany : Springer-Verlag .
  • Grill , E. , Winnacker , E. L. and Zenk , M. H. 1985 . Phytochelatins: The principal heavy-metal complexing peptides of higher plants . Science , 230 : 674 – 676 .
  • Guilizzoni , P. 1991 . The role of heavy metals and toxic materials in the physiological ecology of submersed macrophytes . Aquat. Bot. , 41 : 87 – 109 .
  • Gupta , G. C. 1980 . Use of water hyacinths in wastewater treatment . J. Environ. Health. , 43 : 80 – 82 .
  • Gupta , M. and Chandra , P. 1996 . Bioaccumulation and physiological changes in Hydrilla verticillata (l.f.) role in response to mercury . Bull. Environ. Contam. Toxicol. , 56 : 319 – 326 .
  • Gupta , M. and Chandra , P. 1998 . Bioaccumulation and toxicity of mercury in rooted submerged macrophyte Vallisneria spiralis . Environ. Pollut. , 103 : 327 – 332 .
  • Ha , S. B. , Smith , A. P. , Howden , R. , Dietrich , W. M. , Bugg , S. , O'Connell , M. J. , Goldsbrough , P. B. and Cobbett , C. S. 1999 . Phytochelatin synthase genes from Arabidopsis and the yeast . Schizosaccharomyces pombe. Plant Cell , 11 : 1153 – 1164 .
  • Hadad , H. R. , Maine , M. and Bonetto , C. A. 2006 . Macrophyte growth in a pilot-scale constructed wetland for industrial wastewater treatment . Chemosphere , 63 : 1744 – 1753 .
  • Hammer , D. A. 1992 . Designing constructed wetland systems to treat agricultural non-point source pollution . Ecol. Eng. , 1 : 49 – 82 .
  • Hanninen , H. and Lindstrom , H. 1979 . Behavioral test battery for toxic psychological studies used at the Institute of Occupational Health in Helsinki , Helsinki : Institute of Occupational Health .
  • Hanson , B. , Lindbom , S. D. , Loeffler , M. L. and Pilon-Smits , E. A. H. 2004 . Selenium protects plants from phloem feeding aphids due to both deterrence and toxicity . New Phytologist. , 162 : 655 – 662 .
  • Harding , G. I. and Whitton , B. A. 1981 . Accumulation of zinc, cadmium and lead by field populations of . Lemna. Water Res. , 15 : 301 – 319 .
  • Harrington , J. F. 1972 . “ Seed storage and longevity ” . In Seed biology III , Edited by: Kozlowski , T. T. 145 – 245 . New York : Academic Press .
  • Herb , W. R. and Stefan , H. G. 2006 . Seasonal growth of submersed macrophytes in lakes: The effects of biomass density and light competition . Ecol. Modelling , 193 : 560 – 574 .
  • Hetlands , M. D. , Gallagher , J. R. , Daly , D. J. , Hassett , D. J. and Heebink , L. V. 2001 . “ Processing of plants used to phytoremediate lead-contaminated sites ” . In Phytoremediation, wetlands, and sediments , Edited by: Leeson , A. , Foote , E. A. , Banks , M. K. and Magar , V. S. 129 – 136 . Columbus, Ohio : Battelle Press .
  • Ho , K. C. , Chow , Y. L. and Yau , J. T. S. 2003 . Chemical and microbiological qualities of The East River (Dongjiang) water, with particular reference to drinking water supply in Hong Kong . Chemosphere , 52 : 1441 – 1450 .
  • Ho , Y. , Porter , J. and McKay , G. 2002 . Equilibrium isotherm studies for the sorption of divalent metal ions onto peat: Copper, nickel and lead single component systems . Water Air Soil Pollution. , 141 : 1 – 33 .
  • Howden , R. , Goldsbrough , P. B. , Andersen , C. R. and Cobbett , C. S. 1995 . Cadmium sensitive, cad1 mutants of Arabidopsis thaliana are phytochelatin deficient . Plant Physiol. , 107 : 1059 – 1066 .
  • Huser , T. E. 1968 . Economics of aquatic weed control in the central and southern Florida flood control district . Hyacinth Control J. , 7 : 16 – 17 .
  • Hutchinson , T. C. and Stokes , P. M. 1975 . Metal toxicity and Algal bioassays water quality parameters , Philadelphia, Pa. : American Society for Testing and Materials .
  • Hutton , M. 1987 . “ Group report: Cadmium ” . In Lead, mercury, cadmium and arsenic in the environment , Edited by: Hutchinson , T. C. and Meema , K. M. 35 – 41 . Chichester : Wiley . SCOPE 31
  • Isaksson , R. , Balogh , S. J. and Farris , M. A. 2007 . Accumulation of mercury by the aquatic plant . Lemna minor. Int. J. Environ. Studies , 64 ( 2 ) : 189 – 194 .
  • Jackson , L. J. 1998 . Paradigms of metal accumulation in rooted aquatic vascular plants . Sci. Total Environ. , 219 : 223 – 231 .
  • 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 .
  • Jain , S. K. , Vasudevan , P. and Jha , N. K. 1990 . Azolla pinnata R. Br. and Lemna minor L. for removal of lead and zinc from polluted water . Water Res. , 24 ( 2 ) : 177 – 183 .
  • Jaworski , J. F. 1987 . “ Group report: Lead ” . In Lead, mercury, cadmium and arsenic in the environment , Edited by: Hutchinson , T. C. and Meema , K. M. 53 – 68 . Chichester : Wiley . SCOPE 31
  • Jayaweera , M. W. , Dilhani , J. A. T. , Kularatne , R. K. A. and Wijeykoon , S. L. J. 2007 . Biogas production from water hyacinth (Eichhornia crassipes (Mart.) Solms) grown under different nitrogen concentrations . J. Environ. Sci. Health Part A , 42 : 925 – 932 .
  • Kadlec , R. H. and Knight , R. L. 1996 . Treatment wetlands , Boca Raton, Fla. : Lewis Publishers .
  • Kaewsarn , P. 2002 . Biosorption of copper (II) form aqueous solutions by pre-treated biomass of marine algae Padina sp . Chemosphere , 47 : 1081 – 1085 .
  • Kahkonen , A. and Manninen , K. G. P. 1998 . The uptake of nickel and chromium from water by Elodea canadensis at different nickel and chromium exposure levels . Chemosphere , 36 : 1381 – 1390 .
  • Kamal , M. , Ghaly , A. E. , Mohmud , N. and Cote , R. 2004 . Phytoaccumulation of heavy metals by aquatic plants . Environ. Inter. , 29 : 1029 – 1039 .
  • Kamble , S. K. and Patil , M. R. 2001 . Removal of heavy metals from wastewater of thermal power station by water hyacinths (Eichhornia crassipes) . IJEP , 7 : 623 – 626 .
  • Kay , S. H. , Haller , W. T. and Garrad , L. A. 1984 . Effect of heavy metals on water hyacinth (Eichhornia crassipes (Mart.) Solms.) . Aquatic Toxicol. , 5 : 117 – 128 .
  • Keeffe , D. H. O. , Hardy , J. K. and Rao , R. A. 1984 . Cadmium uptake by the water hyacinth: Effects of solution factors . Environ. Pollut. Ser. A: Ecological and Biological , 34 ( 1 ) : 133 – 147 .
  • Kelly , M. 1988 . Mining and the freshwater environment , London : BP Elsevier Applied Science .
  • Kelly , M. G. and Whitton , B. A. 1989 . Interspecific differences in Zn, Cd and Pb accumulation by freshwater algae and bryophytes . Hydrobiologia , 175 : 1 – 12 .
  • Keniskan , O. , Goksu , M. Z. L. , Basibuyuk , M. and Forster , C. F. 2004 . Heavy metal adsorption properties of a submerged aquatic plant (Ceratophyllum demersum) . Biores. Technol. , 92 : 197 – 200 .
  • Keskinkan , O. 2005 . Investigation of heavy metal removal by a submerged aquatic plant (Myriophyllum spicatum) in a batch system . Asian J. Chem. , 17 ( 3 ) : 1507 – 1517 .
  • Keskinkan , O. , Goksu , M. Z. L. , Yuceer , A. , Basibuyuk , M. and Forster , C. F. 2003 . Heavy metal adsorption characteristics of a submerged aquatic plant (Myriophyllum spicatum) . Process Biochem. , 39 : 179 – 183 .
  • 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 .
  • Klumpp , A. , Bauer , K. , Franz-Gerstein , C. and deMenezes , M. 2002 . Variation of nutrient and metal concentrations in aquatic macrophytes along the Rio Cachoeria in Bahia (Brazil) . Environ. Inter. , 28 : 165 – 171 .
  • Knasmuller , S. , Gottmann , E. , Steinkellner , H. , Fomin , A. , Pickl , C. , Paschke , A. , God , R. and Kundi , M. 1998 . Detection of genotoxic effects of heavy metal contaminated soils with plant bioassay . Mutat Res. , 420 : 37 – 48 .
  • Knight , R. L. 1990 . “ Wetland systems ” . In Natural systems for wastewater treatment. Manual of practice FD-16 , 211 – 260 . Alexandria, Va. : Water Pollution Control Federation . Water Pollution Control Federation (eds.)
  • Koichi , U. , Norio , T. , Momohara , A. and Zhou , Z. K. 2006 . Genetic diversity of an endangered aquatic plant, Potamogeton lucens subspecies sinicus . Aquat. Bot. , 85 ( 4 ) : 350 – 354 .
  • Kudo , A. and Miyahara , S. 1991 . A case history: Minamata mercury pollution in Japan—from loss of human lives to decontamination . Water Sci. Technol. , 23 : 283
  • Kumar , P. B. A. N. , Dushenkov , V. , Motto , H. and Raskin , I. 1995 . Phytoextraction—the use of plants to remove heavy metals from soils . Environ. Sci. Technol. , 29 : 1232 – 1238 .
  • Kusel , K. , Trinkwalter , T. , Drake , H. L. and Devereux , R. 2006 . Comparative evaluation of anaerobic bacterial communities associated with roots of submerged macrophytes growing in marine or brackish water sediments . J. Exp. Marine Biol. Ecol. , 337 : 49 – 58 .
  • 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 .
  • Lazaridis , N. K. , Matis , K. A. and Webb , M. 2001 . Flotation of metal-loaded clay anion exchangers, Part I: The case of chromate . Chemosphere , 42 : 373 – 378 .
  • Lenka , M. , Panda , K. K. and Panda , B. B. 1990 . Studies on the ability of water hyacinth (Eichhornia crassipes) to bioconcentrate and biomonitor aquatic mercury . Env. Pollut. , 66 : 89 – 99 .
  • Lesagea , E. , Mundiaa , C. , Rousseaub , D. P. L. , Van de Moortela , A. M. K. , Lainga , G. D. , Meersa , E. , Tacka , F. M. G. , Pauwc , N. D. and Verloo , M. G. 2007 . Sorption of Co, Cu, Ni and Zn from industrial effluents by the submerged aquatic macrophyte Myriophyllum spicatum L . Ecol. Eng. , 30 : 320 – 325 .
  • Libby , W. F. 1951 . Radiocarbon dates: II . Science. , 114 : 291 – 296 .
  • Lin , Y. , Jing , S. , Wang , T. and Lee , D. 2002 . Effects of macrophytes and external carbon sources on nitrate removal from groundwater in constructed wetlands . Env. Pollut. , 119 : 413 – 420 .
  • Lodenius , M. 1991 . Mercury concentrations in an aquatic ecosystem during twenty years following abatement of the pollution source . Water Air Soil Pollut. , 56 : 323 – 332 .
  • Maine , M. A. , Maria , V. D. and Noemi , S. 2001 . Cadmium uptake by floating macrophytes . Water Res. , 35 ( 11 ) : 2629 – 2634 .
  • Maine , M. A. , Suñé , N. L. and Lagger , S. C. 2004 . Chromium bioaccumulation: Comparison of the capacity of two floating aquatic macrophytes . Water Res. , 38 : 1494 – 1501 .
  • Maitani , T. , Kubota , H. , Sato , K. and Yamada , T. 1996 . The composition of metals bound to class III metallothionein (phytochelatin and its desglycyl peptide) induced by various metals in root cultures of Rubia tinctorum . Plant Physiol. , 110 : 1145 – 1150 .
  • Mallick Sharendu , N. and Rai , L. C. 1996 . Removal of heavy metals by two free floating aquatic macrophytes . Biomedical Environ. Sci. , 9 : 399 – 407 .
  • Mallick , N. , Singh , A. K. and Rai , L. C. 1990 . Impact of bimetallic combinations of Cu, Ni and Fe on growth rate, uptake of nitrate and ammonium, 14CO2 fixations, nitrate reductase and urease activity of Chlorella vulgaris . Biol. Metals , 2 : 223 – 228 .
  • Mangabeira , P. A. O. and Labejof , L. 2004 . Accumulation of chromium in root tissues of Eichhornia crassipes (Mart.) Solms in Cachoeira, Brazil . Applied Surface Sci. , 231–232 : 497 – 501 .
  • Manios , T. , Stentiford , E. I. and Millner , P. A. 2003 . The effect of heavy metals accumulation on the chlorophyll concentration of Typha latifolia plants, growing in a substrate containing sewage sludge compost and watered with metalliferous water . Ecol. Eng. , 20 : 65 – 74 .
  • Mauchauffée , S. and Meux , E. 2007 . Use of sodium decanoate for selective precipitation of metals contained in industrial wastewater . Chemosphere. , 69 : 763 – 768 .
  • McCormac , B. M. 1991 . Mercury in the Swedish environment . Water Air Soil Pollut. , 55 : 1 – 126 .
  • McLaughlin , M. J. , Parker , D. R. and Clark , J. M. 1999 . Metals and micronutrients—food safety issues . Field Crops Res. , 60 : 143 – 163 .
  • McNaughton , S. J. , Folsom , T. C. , Lee , T. , Park , F. , Price , C. , Roeder , D. , Schmitz , J. and Stockwell , C. 1974 . Heavy metal tolerance in Typha latifolia without the evolution of tolerant races . Ecology , 55 : 1163 – 1165 .
  • Meybeck , M. , Chapman , D. and Helmer , R. , eds. 1989 . Global fresh water quality: A first assessment , Oxford : Blackwell Reference .
  • Miller , J. R. , Hudson-Edwards , K. A. , Lechler , P. J. , Preston , D. and Macklin , M. G. 2004 . Heavy metal contamination of water, soil and produce with in riverine communities of the Rıo Pilcomayo basin, Bolivia . Sci. Total Environ. , 320 : 189 – 209 .
  • Milovanovic , M. 2007 . Water quality assessment and determination of pollution sources along the Axios/Vardar River, Southeastern Europe . Desalination , 213 : 159 – 173 .
  • Miretzky , P. , Saralegui , A. and Cirelli , A. F. 2004 . Aquatic macrophytes potential for the simultaneous removal of heavy metals (Buenos Aires, Argentina) . Chemosphere. , 57 : 997 – 1005 .
  • Miretzky , P. , Saralegui , A. and Cirelli , A. F. 2006 . Simultaneous heavy metal removal mechanism by dead macrophytes . Chemosphere. , 62 : 247 – 254 .
  • Mishima , D. , Tateda , M. , Ike , M. and Fujita , M. 2006 . Comparative study on chemical pretreatments to accelerate enzymatic hydrolysis of aquatic macrophyte biomass used in water purification processes . Biores. Technol. , 97 : 2166 – 2172 .
  • Mishra , K. K. , Rai , U. N. and Prakash , O. 2007 . Bioconcentration and phytotoxicity of Cd in Eichhornia crassipes . Environ. Monit. Assess. , 130 : 237 – 243 .
  • Mitsch , W. J. 1977 . Water hyacinth (Eichhornia crassipes) nutrient uptake and metabolism in a north-central Florida marsh . Arch. Hydrobiol. , 81 : 188 – 210 .
  • Mitsch , W. J. and Gosselink , J. G. 2000 . Wetlands, , 3rd ed. , New York : John Wiley & Sons, Inc .
  • Mitsch , W. J. and J⊘rgensen , S. E. 2004 . Ecological engineering and ecosystem restoration , Hoboken, NJ : John Wiley & Sons, Inc .
  • Mo , S. C. , Choi , D. S. and Robinson , J. W. 1989 . Uptake of mercury from aqueous solutions by duckweed: The effect of pH, copper and humic acid . J. Environ. Sci. Health , A24 : 135 – 146 .
  • Moffat , A. S. 1999 . Engineering plants to cope up with metals . Science. , 285 : 369 – 370 .
  • Moore , J. W. and Rammoorthy , S. 1984 . Heavy metals in natural waters: Applied monitoring and impact assessment , New York : Springer-Verlag .
  • Moorhead , K. K. and Nordstedt , R. A. 1993 . Batch anaerobic digestion of water hyacinth: Effects of particle size, plant nitrogen content, and inoculum volume . Bioresour. Technol. , 44 : 71 – 76 .
  • Morillo , J. , Usero , J. and Gracia , I. 2002 . Partitioning of metals in sediments from the Odiel River (Spain) . Environ. Inter. , 28 : 263 – 271 .
  • Muaro , J. B. N. , Guimaraes , R. D. and Melamed , R. 2001 . Mercury methylation in macrophyte roots of a tropical lake . Water Air Soil Pollut. , 127 : 271 – 280 .
  • Mukherjee , S. , Mukherjee , S. , Bhattacharya , P. and Duttagupta , A. K. 2004 . Heavy metal levels and esterase variations between metal-exposed and unexposed duckweed Lemna minor: Field and laboratory studies . Environ. Inter. , 30 : 811 – 814 .
  • Munteanu , V. and Munteanu , G. 2007 . Biomonitoring of mercury pollution: A case study from the Dniester River . Ecological Indicators. , 7 : 489 – 496 .
  • Muramoto , S. and Oki , Y. 1983 . Removal of some heavy metals from polluted water by water hyacinth . Bull. Environ. Contamin. Toxicol. , 30 : 170 – 177 .
  • Myers , N. 1990 . The biodiversity challenge: Expanded hot-spot analysis . The Environmentalist , 10 ( 4 ) : 243 – 256 .
  • Nahlik , A. M. and Mitsch , W. J. 2006 . Tropical treatment wetlands dominated by free-floating macrophytes for water quality improvement in Costa Rica . Ecol. Eng. , 28 : 246 – 257 .
  • Nandakumar , R. , Chen , L. and Rogers , S. M. D. 2005 . Agrobacterium-mediated transformation of the wetland monocot Typha latifolia L. (Broadleaf cattail) . Plant Cell Rep. , 23 : 744 – 750 .
  • Ng , J. , Cheung , W. and McKay , G. 2003 . Equilibrium studies for the sorption of lead from effluents using chitosan . Chemosphere , 52 : 1021 – 1030 .
  • Nies , D. H. 1999 . Microbial heavy-metal resistance . Appl. Microbiol. Biotechnol. , 51 : 730 – 750 .
  • Noraho , N. and Gaur , J. P. 1996 . Cadmium adsorption and intracellular uptake by two macrophytes, Azolla pinnata Spirodela polyrhiza . Arch. Hydrobiol. , 136 ( 1 ) : 135 – 144 .
  • Nordberg , G. F. 1996 . Current issues in low-dose cadmium toxicology: Nephrotoxicity and carcinogenicity . Environ Sci. , 4 ( 3 ) : 133 – 147 .
  • Nriagu , J. O. 1979 . Global inventory of natural and anthropogenic emission of trace metals to the atmosphere . Nature , 279 : 409 – 411 .
  • Nriagu , J. O. 1996 . A history of global metal pollution . Science. , 272 : 273 – 274 .
  • Nriagu , J. O. , Kemp , A. L. W. , Wong , H. K. T. and Harper , N. 1979 . Sedimentary record of heavy metal pollution in Lake Erie . Geochim. Cosmochim. Acta. , 43 : 247 – 258 .
  • Nriagu , J. O. and Pacyna , J. M. 1988 . Quantitative assessment of worldwide contamination of air, water and soils by trace metals . Nature , 333 : 134 – 139 .
  • Nzengya , D. M. and Wishitemi , B. E. L. 2001 . The performance of constructed wetlands for wastewater treatment: A case study of Splash wetland in Nairobi, Kenya . Hydrol. Process , 15 : 3239 – 3247 .
  • Odjegba , V. J. and Fasidi , I. O. 2007 . Phytoremediation of heavy metals by . Eichhornia crassipes. Environmentalist , 27 : 349 – 355 .
  • Odum , S. 1965 . Germination of ancient seeds, floristical observations and experiments with archaeologically dated soil samples. Ejnar Munksgaard K⊘benhavn . Dansk Botanisk Arkiv. , 24 ( 2 ) : 70
  • Ohga , I. 1923 . On the longevity of seeds of Nelumbo nucifera. . Bot. Mag. Tokyo , 37 : 87 – 95 .
  • Okurut , T. O. , Rijs , G. B. J. and Van Bruggen , J. J. A. 1999 . Design and performance of experimental constructed wetlands in Uganda, planted with Cyperus papyrus Phragmites mauritianus . Water Sci. Technol. , 40 : 265 – 271 .
  • Otaki , S. 1975 . “ A distribution and ecology of an aquatic plant ” . In Flora and vegetation of Chiba Prefecture , 216 – 232 . Tokyo : Inoue Book Co. . Biological Society of Chiba Prefecture (ed.) [in Japanese]
  • Outridge , P. M. and Noller , B. N. 1991 . Accumulation of toxic trace elements by freshwater vascular plants . Rev. Environ. Contamin. Toxicol. , 121 : 1 – 63 .
  • Pascal , V. , Laetitia , D. , Joel , L. , Marc , S. and Serge , P. 2007 . New concept to remove heavy metals from liquid waste based on electrochemical pH-switchable immobilized ligands . Applied Surface Science , 253 : 3263 – 3269 .
  • Pehlivan , E. and Altun , T. 2007 . Ion-exchange of Pb2 +, Cu2 +, Zn2 +, Cd2 +, and Ni2 + ions from aqueous solution by Lewatit CNP 80 . J. Hazardous Materials , 140 : 299 – 307 .
  • Pendias , H. and Pendias , K. 1989 . Trace elements in soil and plants , Boca Raton, Fla. : CRC Press .
  • Pilon-Smits , E. and Pilon , M. 2002 . Phytoremediation of metals using transgenic plants . Crit Rev. Plant Sci. , 21 ( 5 ) : 439 – 456 .
  • Pinto , C. L. R. , Caconia , A. and Souza , M. M. 1987 . Utilization of water hyacinth for removal and recovery of silver from industrial wastewater . Water Sci. Technol. , 19 : 89 – 101 .
  • Pohl , P. 2006 . Application of ion-exchange resins to the fractionation of metals in water . Trends in Analytical Chemistry , 25 ( 1 ) : 31 – 43 .
  • Prakash , O. , Mehrotra , I. and Kumar , P. 1987 . Removal of cadmium from water by water hyacinth . J. Env. Eng. , 113 : 352 – 365 .
  • Prego , R. and Garcıa , A. 2003 . Twentieth century overview of heavy metals in the Galician Rias (NW Iberian Peninsula) . Env. Pollut. , 121 : 425 – 452 .
  • Quian , J. H. , Zayed , A. , Zhu , Y. L. , Yu , M. and Terry , N. 1999 . Phytoaccumulation of tace elements by wetland plants, III: Uptake and accumulation of ten trace elements by twelve plant species . J. Environ. Quality. , 28 : 1448 – 1455 .
  • Rahman , M. A. , Hasegawa , H. , Ueda , K. , Maki , T. , Okumura , C. and Rahman , M. M. 2007 . Arsenic accumulation in duckweed (Spirodela polyrhiza L.): A good option for phytoremediation . Chemosphere , 69 : 493 – 499 .
  • Rahmani , G. N. H. and Sternberg , S. P. K. 1999 . Bioremoval of lead from water using Lemna minor. . Biores. Technol. , 70 : 225 – 230 .
  • Rai , L. C. , Gaur , J. P. and Kumar , H. D. 1981 . Phycology and heavy metal pollution . Bio. Rev. Cambr. Philos. Soc. , 56 : 99 – 151 .
  • Rai , P. K. 2007a . Phytoremediation of Pb and Ni from industrial effluents using Lemna minor: An eco-sustainable approach . Bull. Biosci. , 5 ( 1 ) : 67 – 73 .
  • Rai , P. K. 2007b . Wastewater management through biomass of Azolla pinnata: An ecosustainable approach . Ambio. , 36 ( 5 ) : 426 – 428 .
  • Rai , P. K. 2008a . Heavy-metal pollution in aquatic ecosystems and its phytoremediation using wetland plants: An eco-sustainable approach . Int. J. Phytoremediation , 10 ( 2 ) : 133 – 160 .
  • Rai , P. K. 2008b . Mercury pollution from chlor-alkali industry in a tropical lake and its bio-magnification in aquatic biota: Link between chemical pollution, biomarkers and human health concern . Human and Ecological Risk Assessment: An International Journal , 14 : 1318 – 1329 .
  • Rai , P. K. 2008c . “ Heavy metals in water, sediments, and wetland plants in an aquatic ecosystem of tropical industrial region, India ” . In Environmental Monitoring and Assessment 1 – 25 . DOI 10.1007/s10661-008-0595-9
  • Rai , P. K. 2008d . Phytoremediation of Hg and Cd from industrial effluents using an aquatic free floating macrophyte Azolla pinnata . International Journal of Phytoremediation , 10 ( 5 ) : 430 – 439 .
  • Rai , P. K. 2009a . Microcosm investigation on phytoremediation of Cr using Azolla pinnata . International Journal of Phytoremediation , in press
  • Rai , P. K. 2009b . Phytoremediation of heavy metals in a tropical impoundment of industrial region . Environmental Monitoring and Assessment , published online. DOI 10.1007/s10661-009-0964-z
  • Rai , P. K. 2009c . Seasonal monitoring of heavy metals and physico-chemical characteristics in a lentic ecosystem of sub-tropical industrial region, India . Environmental Monitoring and Assessment , published online. DOI 10.1007/s10661-009-0956-z
  • Rai , P. K. 2009d . Heavy metal pollution in lentic ecosystem of sub-tropical industrial region and its phytoremediation . International Journal of Phytoremediation , in press
  • Rai , P. K. , Sharma , A. P. and Tripathi , B. D. 2007 . “ Urban environment status in Singrauli Industrial region and its eco-sustainable management: A case study on heavy metal pollution ” . In Urban planning and environment: Strategies and challenges , Edited by: Vyas , L. 213 – 217 . New York : McMillan Adanced Research Series .
  • Rai , P. K. and Tripathi , B. D. 2006 . Impact of thermal power effluent on aquatic environment . National J. Radiation Res. , 3 ( 4 ) : 190 – 192 .
  • Rai , P. K. and Tripathi , B. D. 2007a . Heavy metals adsorption characteristics of free floating aquatic macrophyte Spirodela poyrhhiza . J. Environ. Res. Devel. , in press
  • Rai , P. K. and Tripathi , B. D. 2007b . Heavy metals in industrial wastewater, soil and vegetables in Lohta village, India . Toxicol. Environm. Chem. , 90 ( 2 ) : 247 – 257 .
  • Rai , P. K. and Tripathi , B. D. 2007c . Heavy metals removal using nuisance blue green alga Microcystis in continuous culture experiment . Environ. Sci. , 4 ( 1 ) : 53 – 59 .
  • Rai , P. K. and Tripathi , B. D. 2007d . Microbial contamination in vegetables due to irrigation with partially treated municipal wastewater in a tropical city . International Journal of Environmental Health Research , 17 ( 5 ) : 389 – 395 .
  • Rai , P. K. and Tripathi , B. D. 2009 . Comparative assessment of Azolla pinnata and Vallisneria spiralis in Hg removal from G. B. Pant Sagar of Singrauli Industrial region, India . Environmental Monitoring and Assessment , 148 : 75 – 84 .
  • Rai , U. N. , Sinha , S. , Tripathi , P. and Chandra , P. 1995 . Wastewater treatability potential of some aquatic macrophytes: Removal of heavy metals . Ecol. Eng. , 5 : 5 – 12 .
  • Ramaswamy , S. N. and Somashekhar , R. K. 1982 . Ecological studies on algae of electroplating wastes . Phykos , 21 : 83 – 90 .
  • Rauser , W. E. 1990 . Phytochelatins . Annu. Rev. Biochem. , 59 : 61 – 86 .
  • Reay , P. F. 1972 . The accumulation of arsenic from arsenic rich natural waters by aquatic plants . J. Appl. Ecol. , 9 : 557 – 565 .
  • Reddy , K. R. and DeBusk , W. F. 1985 . Nutrient removal potential of selected aquatic macrophytes . J. Environ. Qual. , 14 : 459 – 462 .
  • Reed , R. H. and Gadd , G. M. 1990 . “ Metal tolerance in eukaryotic and prokaryotic algae ” . In Heavy metal tolerance in plants: Evolutionary aspects , Edited by: Shaw , A. J. 105 – 118 . Boca Raton, Fla. : CRC Press .
  • Reed , S. C. , Crites , R. W. and Middlebrooks , E. J. 1995 . Natural systems for waste management and treatment, , 2nd ed. , New York : McGraw-Hill .
  • Reeves , R. D. and Brooks , R. R. 1983 . Hyperaccumulation of lead and zinc by two metallophytes from mining areas in Central Europe. Environ. Pollut. . Ser. A , 31 : 277 – 285 .
  • Rengaraj , S. , Yeon , K. H. and Moon , S. H. 2001 . Removal of chromium from water and wastewater by ion exchange resins . J. Hazard. Mater. , B87 : 273 – 287 .
  • Robinson , B. , Nick , K. , Monica , M. , Christophe , M. , Lina , S. , Vanden , D. C. , Georgie , M. and Brent , C. 2006 . Arsenic hyperaccumulation by aquatic macrophytes in the Taupo Volcanic Zone, New Zealand . Environ. Experim. Botany , 58 : 206 – 215 .
  • 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 .
  • Benaroya , R. O. , Tzin , V. , Tel-Or , E. and Zamski , E. 2004 . Lead accumulation in the aquatic fern Azolla filiculoides . Plant Physiology and Biochemistry , 42 : 639 – 645 .
  • Roy , S. and Hanninen , O. 1994 . Pentachlorophenol: Uptake/elimination kinetics and metabolism in an aquatic plant, Eichhornia crassipes . Environ. Toxicol. Chem. , 13 : 763 – 773 .
  • Sahu , A. K. , Sahoo , S. K. and Giri , S. S. 2002 . Efficacy of water hyacinth compost in nursery ponds for larval rearing of Indian major carp, Labeo rohita . Bioresour. Technol. , 85 : 309 – 311 .
  • Salt , D. E. 1995 . MgATP-dependent transport of phytochelatins across the tonoplast of oat roots . Plant Physiol. , 107 : 1293 – 1301 .
  • Salt , D. E. , Blaylock , M. , Kumar , P. B. A. N. , Dushenkov , V. , Ensley , D. , Chet , I. and Raskin , I. 1995 . Phytoremediation: A novel strategy for the removal of toxic elements from the environment using plants . Bio/Technology , 13 : 468 – 474 .
  • Salt , D. E. , Smith , R. D. and Raskin , I. 1998 . Phytoremedietion . Annual Rev. Plant Physiol. Plant Mol. Biol. , 49 : 643 – 648 .
  • Sanyahumbi , D. , Duncan , J. R. , Zhao , M. and Hille , R. V. 1998 . Removal of lead from solution by the non-viable biomass of the water fern Azolla filiculoides . Biotechnology Letters , 20 ( 8 ) : 745 – 747 .
  • Satyakala , G. and Jamil , K. 1992 . Chromium induced biochemical changes in Eichhornia crassipes Pistia stratiotes . Bull. Environ. Contam. Toxicol. , 48 : 921 – 928 .
  • Scheidner , I. A. H. and Rubio , J. 1999 . Sorption of heavy metal ions by the non-living biomass of the fresh water macrophyte . Environ. Sci. Technol. , 33 : 2213 – 2217 .
  • Scheidner , I. A. H. , Rubio , J. , Misra , M. and Smith , R. W. 1995 . Eichhornia crassipes as biosorbent for heavy metal ions . Miner. Eng. , 8 ( 9 ) : 979 – 988 .
  • Scheidner , I. A. H. , Rubio , J. and Smith , R. W. 1999 . Effect of some mining chemicals on biosorption of Cu(II) by the non-living biomass of the fresh water macrophyte Potamogeton lucens . Miner. Eng. , 12 : 255 – 260 .
  • Schmoger , M. E. , Oven , M. and Grill , E. 2000 . Detoxification of arsenic by phytochelatins in plants . Plant Physiol. , 122 : 793 – 801 .
  • 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 .
  • Sculthorpe , C. D. 1967 . The biology of aquatic vascular plants , 610 New York : St. Martin's Press .
  • Sela , M. , Gary , J. and Tel-Or , E. 1989 . Accumulation and the effect of heavy metals on the water fern Azolla filiculoides. . New Phytol. , 112 : 7 – 12 .
  • Settle , D. M. and Patterson , C. C. 1980 . Lead in albacore: Guide to metal pollution in Americans . Science , 207 : 1167 – 1176 .
  • Shammas , N. K. 2004 . “ Coagulation and flocculation ” . In Physicochemical treatment processes , Edited by: Wang , L. K. , Hung , Y. T. and Shammas , N. K. Vol. 3 , 103 – 140 . Totowa, New Jersey : Humana Press .
  • Sharma , D. C. 2003 . Concern over mercury pollution in India . Lancet , 362 : 1030
  • Sharma , S. S. and Gaur , J. P. 1995 . Potential of Lemna polyrrhiza for removal of heavy metals . Ecol. Eng. , 4 : 37 – 43 .
  • Sharpe , V. and Denny , P. 1976 . Electron microscope studies on the absorption and localization of lead in the leaf tissue of Potamogeton pectinatus L . J. Exp. Bot. , 27 ( 11 ) : 35 – 62 .
  • Shukla , V. K. , Prakash , A. , Tripathi , B. D. and Reddy , D. C. S. 1998 . Biliary heavy metal concentration in carcinoma of the gall bladder: Case-control study . BMJ. , 317 : 1288 – 1289 .
  • Shutes , R. B. E. 2001 . Artificial wetlands and water quality improvement . Environ. Int. , 26 : 441 – 447 .
  • Singh , S. , Pradhan , S. and Rai , L. C. 2000 . Metal removal from single and multimetallic systems by different biosorbent materials as evaluated by differential pulse anodic voltammetry . Process Biochem. , 36 : 175 – 182 .
  • Singhal , V. and Rai , J. P. N. 2003 . Biogas production from water hyacinth and channel grass used for phytoremediation of industrial effluents . Bioresour. Technol. , 86 : 221 – 225 .
  • Sinha , S. , Gupta , M. and Chandra , P. 1996 . Bioaccumulation and bio-chemical effects of mercury in the plant of Bacopa monnieri L . Environ. Toxicol. Water Quality , 11 : 105 – 112 .
  • Skinner , K. , Wright , N. and Goff , E. P. 2007 . Mercury uptake and accumulation by four species of aquatic plants . Environ. Pollut. , 145 : 234 – 237 .
  • Smara , A. , Delimi , R. , Chainet , E. and Sandeaux , J. 2007 . Removal of heavy metals from diluted mixtures by a hybrid ion-exchange/electrodialysis process . Sep. Purification Technol. , 57 : 103 – 110 .
  • Smith , D. G. 1986 . Heavy metals in New Zealand aquatic environment: A review , Wellington : National Water and Soil Conservation Authority . Water and Soil Miscellaneous Publication No. 100
  • Soltan , M. E. and Rashed , M. N. 2003 . Laboratory study on the survival of water hyacinth under several conditions of heavy metal concentrations . Adv. Environ. Res. , 7 : 321 – 334 .
  • Srivastav , R. K. , Gupta , S. K. , Nigam , K. D. P. and Vasudevan , P. 1993 . Use of aquatic plants for the removal of heavy metals from wastewater . Int. J. Environ. Studies , 45 ( 1 ) : 43 – 50 .
  • Srivastava , A. and Jaiswal , V. S. 1989 . Biochemical changes in duckweed after cadmium treatment. Enhancement in senescence . Water Air Soil Pollut. , 50 : 163 – 170 .
  • Stanley , R. A. 1974 . Toxicity of heavy metals and salts to Eurasian watermilfoil (Myriophyllum spicatum) . Arch Environ. Contam. Toxicol. , 2 : 331 – 340 .
  • Steffens , J. 1990 . The heavy-metal binding peptides of plants . Annu. Rev. Plant Physiol. Plant Mol. Biol. , 41 : 553 – 575 .
  • Stolzenberg , H. C. and Draeger , S. 1988 . The macrophytic periphyton-algae in the severly metal contaminated River Oker (eastern lower Saxony) Braunshw . Naturkdl. Schr. , 3 : 243 – 254 .
  • Stone , K. C. , Poach , M. E. , Hunt , P. G. and Reddy , G. B. 2004 . Marsh-pond-marsh constructed wetland design analysis for swine lagoon wastewater treatment . Ecol. Eng. , 23 : 127 – 133 .
  • Summers , A. O. 1992 . The hard stuff: Metals in bioremediation . Current Opinion in Biotechnology. , 3 : 271 – 276 .
  • Susarla , S. , Medina , V. F. and McCutcheon , S. C. 2002 . Phytoremediation: An ecological solution to organic chemical contamination . Ecol. Eng. , 18 : 647 – 658 .
  • Syers , J. K. and Goldfeld , M. 2001 . “ Introduction ” . In Environmental cadmium in the food chain: Source, pathways and risks Edited by: Syers , J. K. and Goldfeld , M. iv – v . Proceeding of the SCPOPE Workshop. Scientific Committee on Problems of the Environment/International Council of Scientific Unions (SCOPE/ICSU). September 13–16, 2000, Brussels, Belgium. Paris' SCOPE
  • Szymanowska , A. , Samecka-Cymerman , A. and Kempers , A. J. 1999 . Heavy metals in three lakes in West Poland . Ecotoxicol. Environ. Safety. , 43 : 21 – 29 .
  • Tamasi , G. and Cini , R. 2004 . Heavy metals in drinking waters from Mount Amiata (Tuscany, Italy). Possible risks from arsenic for public health in the province of Siena . Sci. Total Environ. , 327 : 41 – 51 .
  • Taylor , G. J. and Crowder , A. A. 1983 . Uptake and accumulation of copper, nickel, and iron by Typha latifolia grown in solution culture . Can. J. Bot. , 61 : 1825 – 1830 .
  • Taylor , G. J. and Crowder , A. A. 1984 . Copper and nickel tolerance in Typha latifolia clones from contaminated and uncontaminated environments . Can. J. Bot. , 62 : 1304 – 1308 .
  • Tiwari , S. , Dixit , S. and Verma , N. 2007 . An effective means of biofiltration of heavy metal contaminated water bodies using aquatic weed Eichhornia crassipes. . Environ. Monit. Assess. , 129 : 253 – 256 .
  • Tong , Y. P. , Kneer , R. and Zhu , Y. 2004 . Vacuolar compartmentalization: A second-generation approach to engineering plants for phytoremediation . Trends Plant Sci. , 9 ( 1 ) : 7 – 9 .
  • Trevors , J. T. , Stratton , G. W. and Gadd , G. M. 1986 . Cadmium transport, resistance and toxicity in bacteria, algae and fungi . Can. J. Microbiol. , 32 : 447 – 464 .
  • Tripathi , B. D. and Shukla , S. C. 1991 . Biological treatment of wastewater by selected aquatic plants . Env. Pollut. , 69 : 69 – 78 .
  • Tripathi , B. D. , Srivastava , J. and Misra , K. 1991 . Nitrogen and phosphorus removal-capacity of four chosen aquatic macrophytes in tropical freshwater ponds . Environ. Conserv. , 18 : 143 – 147 .
  • Ullrich , S. M. , Tanton , T. W. and Svetlana , A. A. 2001 . Mercury in the aquatic environment: A review of factors affecting methylation . Crit. Rev. Environ. Sci. Technol. , 31 ( 3 ) : 241 – 293 .
  • United States Environmental Protection Agency (EPA) . 1987 . Fresh water chronic criteria , Washington, DC : EPA .
  • United States Office of Science and Technology . 1971 . Economic damage caused by aquatic weeds (preliminary survey) . Agency Internat. Dev. , : 71 – 75 . TA/OST
  • 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 .
  • Vajpayee , P. , Rai , U. N. , Sinha , S. , Tripathi , R. D. and Chandra , P. 1995 . Bioremediation of tannery effluents by aquatic macrophytes: Removal of heavy metals . Ecol. Eng. , : 5 – 12 .
  • Valitutto , R. S. , Sella , S. M. , Silva-Filho , E. V. , Pereira , R. G. and Miekeley , N. 2006 . Accumulation of metals in macrophytes from water reservoirs of a power supply plant, Rio de Janeiro State, Brazil . Water Air Soil Pollut. , 178 : 89 – 102 .
  • Vardanyan , L. G. and Ingole Baban , S. 2006 . Studies on heavy metal accumulation in aquatic macrophytes from Sevan (Armenia) and Carambolim (India) Lake systems . Environ. Int. , 32 : 208 – 218 .
  • Vasudevan , P. , Padmavathy , V. , Tewari , N. and Dhingra , S. 2001 . Biosorption of heavy metal ions . J. Sci. Ind. Res. , 60 : 112 – 120 .
  • Vatamaniuk , O. K. , Bucher , E. A. , Ward , J. T. and Rea , P. A. 2001 . A new pathway for heavy metal detoxification in animals. Phytochelatin synthase is required for cadmium tolerance in . Caenorhabditis elegans. J. Biol. Chem. , 276 : 20817 – 20820 .
  • Vatamaniuk , O. K. , Mari , S. , Lu , Y. P. and Rea , P. A. 1999 . AtPCS1, a phytochelatin synthase from Arabidopsis: Isolation and in vitro reconstitution . Proc. Natl. Acad. Sci. USA , 96 : 7110 – 7115 .
  • Veglio , F. and Beolchini , F. 1997 . Removal of heavy metal ions by biosoprtion: A review . Hydrometallurgy. , 44 : 301 – 316 .
  • Verhoeven , J. T. A. and Mueleman , A. F. M. 1999 . Wetlands for wastewater treatment: Opportunities and limitations . Ecol. Eng. , 12 : 5 – 12 .
  • Vesk , P. A. , Nockolds , C. E. and Alloway , W. G. 1999 . Metal localization in water hyacinth root from an urban wetland . Plant Cell Environ. , 22 : 149 – 158 .
  • Vigneswaran , S. , Ngo , H. H. , Chaudhary , D. S. and Hung , Y. T. 2004 . “ Physico-chemical treatment processes for water reuse ” . In Physicochemical treatment processes , Edited by: Wang , L. K. , Hung , Y. T. and Shammas , N. K. Vol. 3 , 635 – 676 . Totowa, NJ : Humana Press .
  • Volesky , B. and Holan , Z. 1995 . Biosorption of heavy metals . Biotechnol. Prog. , 11 : 235 – 250 .
  • Vymazal , C. , Jaroslav , S. , Lenka , K. and Vladislav , C. 2007 . Trace metals in Phragmites australis Phalaris arundinacea growing in constructed and natural wetlands . Ecol. Eng. , 30 ( 4 ) : 320 – 325 .
  • Vymazal , J. , Brix , H. , Cooper , P. F. , Haberl , R. , Perfler , R. and Laber , J. 1998 . “ Removal mechanisms and types of constructed wetlands ” . In Constructed wetlands for wastewater treatment in Europe , Edited by: Vymazal , J. , Brix , H. , Cooper , P. F. , Green , M. B. and Haberl , R. 17 – 66 . Leiden, , The Netherlands : Backhuys Publishers .
  • Wallen , D. G. 1990 . The toxicity of chromium (VI) to photosynthesis of the phytoplankton assemblage of Lake Erie and the diatom Fragilaria crotonensis . Aquatic Bot. , 38 : 331 – 340 .
  • Wang , Q. , Kim , D. , Dionysiou , D. D. , Sorial , G. A. and Timberlake , D. 2004 . Sources and remediation for mercury contamination in aquatic systems—a literature review . Environmental Pollution. , 131 : 323 – 336 .
  • Wang , G. , Fuerstenau , M. C. and Smith , R. W. 1998 . Sorption of heavy metals onto nonliving water hyacinth roots. Min. Pro. Exr . Mtl. Rev. , 19 : 309 – 322 .
  • 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 .
  • Wang , T. C. , Weissman , J. C. , Ramesh , G. , Varadarajan , R. and Benemann , J. R. 1996 . Parameters for removal of toxic heavy metals by water milfoil (Myriophyllum spicatum) . Bull. Environ. Contamin. Toxicol. , 57 : 779 – 786 .
  • Weis , J. S. and Weis , P. 2004 . Metal uptake, transport and release by wetland plants: Implications for phytoremediation and restoration . Environ. Int. , 30 : 685 – 700 .
  • Weiss , J. , Hondzo , M. , Biesboer , D. and Semmens , M. 2006 . Laboratary study of heavy metal phytoremediation by three wetland macrophytes . Int. J. Phytoremediation. , 8 : 245 – 259 .
  • Wetzel , R. G. 1975 . Limnology , 355 Philadelphia : W. B. Saunders Company .
  • Whitton , B. A. , Burrows , I. G. and Kelly , M. G. 1989 . Use of Cladophora glomerata to monitor heavy metals in rivers . J. Appl. Phycol. , 1 : 293 – 299 .
  • World Health Organization (WHO) . 1989 . Mercury—environmental aspects , Geneva : WHO . Environmental Health Criteria, 86
  • World Health Organization (WHO) . 1990 . Methylmercury—environmental aspects , Geneva : WHO . Environmental Health Criteria, 101
  • World Health Organization (WHO) . 1997 . Health and environment in sustainable development , Geneva : WHO .
  • Wilken , R. F. and Hintelmann , H. 1991 . Mercury and methyl mercury in sediments and suspended particles from River Elbe, North Germany . Water Air Soil Pollution , 56 : 427
  • Wong , P. T. S. and Chau , Y. K. 1990 . Zinc toxicity to freshwater algae . Tox. Assess. , 5 : 167 – 177 .
  • Woverlton , B. C. and McDonald , R. C. 1978a . Bioaccumulation and detection of trace levels of cadmium in aquatic systems by Eichhornia crassipes . Environmental Health Perspectives , 27 : 161 – 164 .
  • Woverlton , B. C. and McDonald , R. C. 1978b . Water hyacinth sorption rates of lead, mercury and cadmium NASA/ERL Report 170, Wasington, D. C.
  • Woverlton , B. C. and McDonald , R. C. 1979 . The water hyacinth: From prolific pest to potential provider . Ambio. , 8 ( 1 ) : 1 – 9 .
  • Wurl , O. and Obbard , J. 2004 . A review of pollutants in the sea-surface microlayer (SML): A unique habitat for marine organisms . Marine Pollut. Bull. , 48 : 1016 – 1030 .
  • Xiaomei , L. , Maleeya , K. , Prayad , P. and Kunaporn , H. 2004 . Removal of cadmium and zinc by water hyacinth, Eichhornia crassipes . Science Asia , 30 : 93 – 103 .
  • Yang , X. , Feng , Y. , He , Z. and Stoffella , P. J. 2005 . Molecular mechanisms of heavy metal hyperaccumulation and phytoremediation . Journal of Trace Elements in Medicine and Biology , 18 : 339 – 353 .
  • Ye , Z. H. , Chen , G. Z. , Lan , C. Y. and Li , L. C. 1992 . Effect of treating Pb/Zn mine wasterwater with Typha latifolia purification pond system . Chin. J. Appl. Ecol. , 3 : 190 – 194 .
  • Zaranyika , M. F. and Ndapwadza , T. 1995 . Uptake of Ni, Zn, Fe, Co, Cr, Pb, Cu and Cd by water hyacinth (Eichhornia crassipes) in Mukuvisi and Manyame Rivers, Zimbabwe. J. Environ. Sci. Health . Part A Environ. Sci. Eng. Toxic Hazardous Substance Control , 30 : 157 – 169 .
  • Zayed , A. , Gowthaman , S. and Terry , N. 1998 . Phytoaccumulation of trace elements by wetland plants: Duckweed . J. Environ. Quality , 27 : 715 – 721 .
  • Zenk , M. H. 1996 . Heavy metal detoxification in higher plants—a review . Gene , 179 : 21 – 30 .
  • Zhao , M. and Duncan , J. R. 1997 . Batch removal of sexivalent chromium by Azolla filiculoides . Biotechnol. Appl. Biochem. , 26 : 172 – 179 .
  • Zhao , M. and Duncan , J. R. 1998 . Removal and recovery of nickel from aqueous solution and electroplating rinse effluent using Azolla filiculoides. . Process Biochem. , 33 : 249 – 255 .
  • Zhao , M. , Duncan , J. R. and Van Hille , R. P. 1999 . Removal and recovery of zinc from solution and electroplating effluent using Azolla filiculoides . Wat. Res. , 6 : 1516 – 1522 .
  • Zhoua , H. , Penga , X. and Panb , J. 2004 . Distribution, source and enrichment of some chemical elements in sediments of the Pearl River Estuary, China . Continental Shelf Res. , 24 : 1857 – 1875 .
  • Zhu , Y. L. , Zayed , A. M. , Quian , J. H. , Desouza , M. and Terry , N. 1999 . Phytoaccumulation of trace elements by wetland plants, II: Water hyacinth . J. Environ. Quality , 28 : 339 – 444 .
  • Zietz , B. P. , Dieter , H. , Lakomek , M. , Schneider , H. , Gaedtke , K. B. and Dunkelberg , H. 2003 . Epidemiological investigation on chronic copper toxicity to children exposed via the public drinking water supply . Sci. Total Environ. , 302 : 127 – 144 .
  • Zurayk , R. , Sukkariyah , B. and Baalbaki , R. 2001 . Common hydrophtes as bioindicator of nickel, chromium and cadmium pollution . Water Air Soil Pollution , 127 : 373 – 388 .
  • Zurayk , R. , Sukkariyah , B. , Baalbaki , R. and Abi Ghanem , D. 2002 . Ni phytoaccumulation in Mentha aquatic L. and Mentha sylvestris L . Water, Air, Soil Pollution , 139 ( 1–4 ) : 355 – 364 .

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