Abstract
Mercury contamination in the water bodies of developing countries is a serious concern due to its toxicity, persistence, and bioaccumulation. Vembanad, a tropical backwater lake situated at the southwest coast of India, is the largest Ramsar site in southern India. The lake supports thousands of people directly and indirectly through its resources and ecosystem services. It is highly polluted with toxic pollutants such as heavy metals, as it receives effluent discharges from Kerala’s major industrial zone. In the present study, water, pore water, sediment, and fish samples collected from Vembanad Lake were analysed for total mercury (THg) and methyl mercury (MHg) contents. The maximum concentrations of THg and MHg in surface water samples were31.8 and 0.21 ng/L, respectively, and those in bottom water samples were 206 and 1.22 ng/L, respectively. Maximum concentration of THg in surface sediment was observed during monsoon season (2850 ng/g) followed by that in the pre-monsoon season (2730 ng/g) and the post-monsoon season (2140 ng/g). The highest sediment concentration of MHg (202.02 ng/g) was obtained during monsoon season. The spatial variation in the mercury contamination clearly indicates that the industrial discharge into the Periyar River is a major reason for pollution in the lake. The mercury pollution was found to be much higher in Vembanad Lake than in other wetlands in India. The bioaccumulation was high in carnivorous fishes, followed by benthic carnivores. The THg limit in fish for human consumption (0.5 mg/kg dry wt.) was exceeded for all fish species, except for Glossogobius guiris and Synaptura orientalis. The concentration of THg was five times higher in Megalops cyprinoides and four times higher in Gazza minuta. Significant variation was observed among species with different habits and habitats. Overall, risk assessment factors showed that the mercury levels in the edible fishes of Vembanad Lake can pose serious health impacts to the human population.
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Agarwal, R., Kumar, R., & Behari, J. R. (2007). Mercury and lead content in the fish species from the River Gomti, Lucknow, India. Bulletin of Environmental Contamination and Toxicology, 78, 118–122.
Alonso, D., Pineda, P., Olivero, J., Gonzalez, H., & Campos, N. (2000). Mercury levels in muscle of two fish species and sediments from the Cartagena Bay and the Ciénagas Grande de Santa Marta, Colômbia. Environmental Pollution, 109, 157-163.
Azevedo-Silva, C. E., Almeida, R., Carvalho, D., Ometto, J. P. H. B., de Camargo, P. B., Dorneles, P. R., Azeredo, A., Bastos, W. R., Malm, O., & Torres, J. P. M. (2016). Mercury biomagnification and the trophic structure of the ichthyofauna from a remote lake in the Brazilian Amazon. Environmental Research, 151, 286–296.
Babu, N. K., Omana, P. K., & Mohan, M. (2010). Water and sediment quality of Ashtamudi estuary, a Ramsar site, southwest coast of India—a statistical appraisal. Environmental Monitoring and Assessment, 165(1), 307–319.
Barbosa, A. C., Souza, J. D., Dorea, J. G., Jardim, W. F., & Fadini, P. S. (2003). Mercury bio magnification in tropical black water, Rio Negro, Brazil. Archives of Environmental Contamination and Toxicology, 45, 235–246.
Bhattacharya, S., Dubey, S. K., Dash, J. R., Patra, P. H., Das, A. K., et al. (2014). Assemblages of Total mercury in the tropical Macrotidal Bidyadhari estuarine stretches of Indian Sundarban mangrove eco-region. Journal of Environmental Analytical Toxicology, 4, 241. doi:10.4172/2161-0525.1000241.
Bonzongo, J. J., & Lyons, B. W. (2004). Impact of landuse and physiochemical settings on aqueous methyl mercury levels in the mobile-Alabama river system. Ambio, 33(6), 328–333.
Boszke, L., Kowalski, A., Astel, A., Baranski, A., Gworek, B., & Siepak, J. (2007). Mercury mobility and bioavailability in soil from contaminated area. Environmental Geology. doi:10.1007/s00254-007-1056-4.
Bourgoin, L. M., Quiroga, I., Chincheros, J., & Courau, P. (2000). Mercury distribution in waters and fishes of the upper Maderia rivers and mercury exposure in riparian Amazonian populations. Science of the Total Environment, 260, 73–86.
Bowles, K. C., Apte, S. C., Maher, W. A., Kawei, M., & Smith, R. (2001). Bioaccumulation and biomagnification of mercury in Lake Murray, Papua New Guinea. Canadian Journal of Fisheries and Aquatic Science, 58, 888–897.
Bower, J., Savage, K. S., Weinman, B., Barnett, M. O., Hamilton, W. P., & Harper, W. F. (2008). Immobilization of mercury by pyrite (FeS2). Environmental Pollution, 156, 504–514.
Brim, M.S., Bateman, D., Jarvis, R., Carmody, G. (1994). Mercury in fishes of the J. N. Ding Darling national Wildlife Refuge. U. S. Fish and Wildlife Service and Wildlife Enhancement. Publication No. PCFO-EC.94–03.
BSCB. (2003). India replaces US as biggest consumer of mercury. BS Corporate Bureau in New Delhi.
Cizdziel, J., Hinners, T., Crossb, C., & Pollard, J. (2003). Distribution of mercury in the tissues of five species of freshwater fish from Lake Mead, USA. Journal of Environmental Monitoring, 5, 802–807.
Costa, M. F., Barbosa, S. C. T., Barletta, M., Dantas, D. V., Kehrig, H. A., Seixas, T. G., & Malm, O. (2009). Seasonal differences in mercury accumulation in Trichiurus lepturus (Cutlassfish) in relation to length and weight in a Northeast Brazilian estuary. Environmental Science and Pollution Research. doi:10.1007/s11356-009-0120-x.
Craig, P. J. (1986). Organomercury compounds in the environment. In P. J. Craig (Ed.), Organometallic compounds in the environment: principles and reactions (pp. 65–110). Harlow: Longman.
Daga, R., Guevara, S. R., Pavlin, M., Rizzo, A., Lojen, A., Vreca, P., Horvat, M., & Arribere, M. (2016). Historical records of mercury in southern latitudes over 1600 years: Lake Futalaufquen, Northern Patagonia. Science of the Total Environment, 553, 541–550.
Das, T. B., Choudhury, A., & Senapati, R. N. (2015). Mercury emissions from coal fired power plants of India—case study. International Journal of Energy, Sustainability and Environmental Engineering Vol., 2(1), 21–24.
Davis, A., Bloom, N. S., & Hee, S. S. Q. (1997). The environmental geochemistry and bioaccessibility of mercury in soils and sediments: a review. Risk Analysis, 17(5), 557–569.
De Marco, S. G., Botte, S. E., & Marcovecchio, J. E. (2006). Mercury distribution in abiotic and biological compartments within several estuarine systems from Argentina: 1980-2005 period. Chemosphere, 65, 213–223.
Dorea, J. G., Barbosa, A. C., & Silva, G. S. (2006). Fish-mercury bioaccumulation as a function of feeding behavior and hydrological cycles of the Rio Negro, Amazon. Comparative Biochemistry and Physiology, 142, 275–283.
Down to Earth. (2003). Mapping the Scourge, India is a mercury pollution hotspot: Oct3–74.
Durrieu, G., Maury-Brachet, R., & Boudou, A. (2005). Goldmining and mercury contamination of the piscivorous fish hoplias aimara in French Guiana (Amazon Basin). Ecotoxicology and Environmental Safety 60(3), 315–323.
Gabriel, M. C., & Williamson, D. G. (2004). Principal biogeochemical factors affecting the speciation and transport of mercury through the terrestrial environment. Environmental Geochemistry and Health, 26, 421–434.
Geen Ruiz, C., Inzunza, J. R., & Osuna, F. P. (2005). Mercury in surface sediments and benthic organisms from Guaymas Bay, east coast of the Gulf of California. Environmental Geochemistry and Health, 27, 321–329.
Guentzel, J. L., Portilla, E., Keith, K. M., & Keith, E. O. (2007). Mercury transport and bioaccumulation in riverbank communities of the Alvarado Lagoon System,Veracruz State, Mexico. Science of Total Environment, 388, 316–324.
Jayakumar, M. (2002). Wetland conservation and management in Kerala. Government of Kerala: KCSTE.
Joseph, S., & Ouseph, P. P. (2010). Assessment of nutrients using multivariate statistical techniques in estuarine systems and its management implications: a case study from Cochin Estuary, India. Water and Environment, 24, 126–132.
Kainz, M., Telmer, K., & Mazumder, A. (2006). Bioaccumulation patterns of methyl mercury and essential fatty acids in lacustrine planktonic food webs and fish. Science of the Total Environment, 368, 271–282.
Kang, S., Huang, J., Wang, F., Zhang, Q., Zhang, Y., Li, C., Wang, L., Chen, P., Sharma, C. M., Li, Q., Sillanpaa, M., Hou, J., Xu, B., & Guo, J. (2016). Atmospheric mercury depositional chronology reconstructed from lake sediments and ice core in the Himalayas and Tibetan plateau. Environmental Science and Technology, 50(6), 2859–2869.
Kannan, K., Smith, R. G., Lee, R. F., Windom, H. L., Macauley, J. M., & Summers, J. K. (1998). Distribution of Total mercury and methyl mercury in water sediment and fish from South Florida estuaries. Archives of Environmental Contamination and Toxicology, 34, 109–118.
Karunasagar, D., Krishna, M. V. B., Anjaneyulu, Y., & Arunachalam, J. (2006). Studies of mercury pollution in a lake due to a thermometer factory situated in a tourist resort: Kodaikanal, India. Environmental Pollution, 143(1), 153–158.
Kehrig, H. A., Costa, M., Moreira, I., & Maim, O. (2001). Methyl mercury and total mercury in estuarine organisms from Rio de Janeiro Brazil. Environmental Science and Pollution Research International, 8(4), 275–279.
Kehrig, H. A., Seixas, T. G., Palermo, E. A., Baêta, A. P., Castelo-Branco, C. W., Malm, O., & Moreira, I. (2009). The relationships between mercury and selenium in plankton and fish from a tropical food web. Environmental Science and Pollution Research, 6, 10–24.
Krishna, M. V., Ranjit, M., Karunasagar, D., & Arunachalam, J. (2005). A rapid ultrasound assisted thiourea extraction method for the determination of inorganic and methyl mercury in biological and environmental samples by CVAAS. Talanta, 67(1), 70–80.
Krishnamoorthy, S., & Nambi, G. (1999). History of accumulation of mercury and nickel in Thane creek, Mumbai, using 210Pb dating technique. Science of the Total Environment, 236, 91–99.
Lawrence, L. A., & Mason, R. P. (2001). Factors controlling the bioaccumulation of mercury and methyl mercury in the estuarine amphipod Leptocheirus plumulosus. Environmental Pollution, 111, 217–231.
Lawson, N. M., & Mason, R. P. (1998). Accumulation of mercury in estuarine food chains. Biogeochemistry, 40, 235–247.
Lewis, M., & Chancy, C. (2007). A summary of total mercury concentration in flora and fauna near common contaminant sources in the Gulf of Mexico. Chemosphere. doi:10.1016/j.chemosphere.2007.09.020.
Li, P., Feng, X. B., Qiu, G. L., Shang, L. H., & Li, Z. G. (2009). Mercury pollution in Asia: a review of the contaminated sites. Journal of Hazardous Materials, 168, 591–601.
Liang, L., Horvat, M., Cerichiari, E., & Balogh, S. (1996). Simple solvent extraction technique for elmination of matrix interferences in the determination of methyl mercury in environmental and biological samples by ethylation-gas chromatography-cold vapour atomic flourescence spectrometry. Talanta, 43, 1883.
Lima, L. H. C., Návia, D., Inglis, P. W., & Oliveira, M. R. V. (2000). Survey of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) biotypes in Brazil using RAPD markers. Genetics and Molecular Biology, 23, 1-5.
Lin, C., He, M., Zhou, Y., Hu, L., Guo, W., Quan, X., & Yang, Z. (2007). Mercury contamination and dynamics in the sediment of the second Songhua River, China. Soil and Sediment Contamination, 16, 397–411.
Lindeström, L. (2001). Mercury in sediment and fish communities of Lake Vänern, Sweden: recovery from contamination, Ambio. The Large Lakes of Sweden, 30(8), 538–544.
Lindqvist, O., Jernelov, A., Johansson, K., Rohde, H. (1984). Mercury in the Swedish environment, Global and Local sources. National Swedish Environmental Protection Board. SNV report PM 1816.
Logar, M., Horvat, M., Akagi, H., Ando, T., Tomiyasu, T., & Fajon, V. (2001). Determination of total mercury and monomethyl mercury compounds in water samples from Minamata Bay, Japan: an interlaboratory comparative study of different analytical techniques. Applied Organometalic Chemistry, 15, 515.
Mahajan, B. A., & Srinivasan, M. (1988). Mercury pollution in the estuarine region around Bombay Island. Environmental Technology, 9, 331–336.
Marrugo-Negrete, J., Verbel, J. O., Ceballos, E. L., & Benitez, L. N. (2008). Total mercury and methylmercury concentrations in fish from the Mojana region of Colombia. Environmental Geochemistry and Health, 30, 21–30.
Mason, R. P., Kim, E., Cornwell, J., & Heyes, D. (2006). An examination of the factors influencing the flux of mercury, methylmercury and other constituents from estuarine sediment. Marine Chemistry, 102, 96–110.
Mieiro, C. L., Pacheco, M., Pereiraa, M. E., & Duartea, A. C. (2009). Mercury distribution in key tissues of fish (Liza aurata) inhabiting a contaminated estuary—implications for human and ecosystem health risk assessment. Journal of Environmental Monitoring, 11, 1004–1012.
Mohan, M., Omana, P.K. (2004).Mercury pollution in Vembanad Lake, Kerala, India presented in the International Conference on Conservation, Restoration and Management of Lakes and Coastal Wetlands, 9–13 December 2004 at Bhubaneswar, Orissa.
Mohan, M., & Omana, P. K. (2007). Statistical analysis of water quality data from a Ramsar site, Vembanad backwaters, southwest coast of India. Asian Journal of Microbiology Biotechnology and Environmental Science, Vol., 9(1).
Mohan, M., Shylesh, C. M. S., Jayasooryan, K. K., & Ramasamy, E. V. (2014). Mercury in the sediments of Vembanad Lake. Western Coast of India. Environmental Monitoring and Assessment., 186, 3321–3336. doi:10.1007/s10661-014-3620-1.
Mol, J. H., Ramlal, J. S., Lietar, C., & Verloo, M. (2001). Mercury contamination in fresh water estuarine, and marine fishes in relation to small scale gold mining in Suriname, South America. Environmental Research, 86(A), 183–197.
Nair, M.N.M. (1994) Residual mercury in the sediments of Beypore estuary. Proceedings of the 6th Kerala Science Congress. 60–61.
Omana, P. K., & Mahesh, M. (2008). The new mercury pollution threat to aquatic ecosystems of India—an example from Kerala. Ecology and Environment Conservation, 14(2–3), 1–4.
Ouseph, P. P. (1992). Dissolved, particulate and sedimentary mercury in the cochin estuary, south west coast of India. In W. Michales (Ed.), coastal and Estuarine studies (pp. 461–465). Berlin: Springer-Verlag.
Ouseph, P.P. (1996). Distribution of mercury, copper, zinc, cadmium, lead and chromium in the sediments of River Periyar and cochin harbour. Report submitted to Kerala State Council for Science, Technology and Environment.
Pacyna, E. G., & Pacyna, J. M. (2002). Global emission of mercury from anthropogenic sources in 1995. Water Air and Soil Pollution, 137, 149–165.
Pacyna, E. G., Pacyna, J. M., & Steenhuisen, F. (2006). Global anthropogenic mercury emission inventory for 2000. Atmospheric Environment, 40, 4048–4063.
Pacyna, J. M., Sundseth, K., Pacyna, E. G., Munthe, J., Kindbom, K., & Wilson, S. (2011). Mercury emissions on a global scale and their control options, the 10th International Conference on Mercury as a Global Pollutant (ICMGP). Halifax.
Paller, M. H., Bowers, J. A., Littrel, J. W., & Guanlao, A. V. (2004). Influence of mercury bioaccumulation factors for the Savannah River. Archives of Environmental Contamination and Toxicology, 46, 236–243.
Parker, J. L., & Bloom, N. S. (2005). Preservation and storage techniques for low level aqueous mercury speciation. Science of the Total Environment, 337, 253–263.
Ram, A., Rokade, M. A., Borole, D. V., & Zingde, M. D. (2003). Mercury in sediments of Ulhas estuary. Marine Pollution Bulletin, 46, 846–857.
Ramaiah, N., & De, J. (2003). Unusual rise in mercury-resistant bacteria in coastal environs. Microbial Ecology, 45(4), 444–454.
Ramasamy, E. V., Toms, A., Shylesh, C. M. S., Jayasooryan, K. K., & Mahesh, M. (2012). Mercury fractionation in the sediments of Vembanad wetland, west coast of India. Environmental Geochemistry and Health, 34(5), 575–586.
Roy, D. V., Chandrashekar, N., & Kumaresan, S. (2004). Mercury pollution in Tambraparni estuary, Tamilnadu, India. Pollution Research, 23(2), 251–258.
Ryzhkov, A., Dastoor, A., Figueras, D., Durnford, D., & Dugas, B. (2011). Atmospheric mercury trends from 1990 to 2005: a modelling analysis, the 10th International Conference on Mercury as a Global Pollutant (ICMGP). Halifax.
Satpathy, K. K., Natesan, U., Sarguru, S., Mohanty, A. K., Prasad, M. V. R., & Sarkar, S. K. (2008). Seasonal variation in mercury concentrations in the coastal waters of Kalpakkam, southeast coast of India. Current Science, 95(3), 374–381.
Scheuhammer, A. M., Meyer, M. W., Sandheinrich, M. B., & Murray, M. W. (2007). Effects of environmental methylmercury on the health of wild birds, mammals, and fish. AMBIO A Journal of the Human Environment, 36(1), 12–18.
Sharma, D. C. (2003). India:a hotspot for mercury pollution. Frontiers of Ecology and Environment, 1(9), 458.
Sinha, R. K., Sinha, S. K., Kedia, D. K., Kumari, A., Rani, N., Sharma, G., & Prasad, K. (2007). A holistic study on mercury pollution in the Ganga River system at Varanasi, India. Current Science, 92(9), 1223.
Smith, S. L., MacDonald, D. D., Keenleyside, K. A., & Gaudet, C. L. (1996). The development and implementation of Canadian sediment quality guidelines. In M. Munawar & G. Dave (Eds.), Development and progress in sediment quality assessment: rationale, challenges, techniques and strategies (pp. 233–249). Amsterdam: SPB Academic Publishing.
Srinivasan, M., & Mahajan, B. A. (1989). Mercury pollution in an estuarine region and its effects on a coastal population. International Journal of Environmental Studies., 35, 63–69.
Subramanian, V., Madhavan, N., Saxenab, R., & Lundin, L. (2003). Nature of distribution of mercury in the sediments of the River Yamuna (tributary of the Ganges), India. Journal Environmental Monitoring, 5, 427–434.
Sunderland, E. M. (2007). Mercury exposure from domestic and imported estuarine and marine fish in the U.S. seafood market. Environmental Health Perspectives, 115(2), 235–242.
Tomiyasu, T., Nagano, A., Yonehara, N., et al. (2000). Mercury contamination in the Yatsushiro Sea, south-western Japan: spatial variations of mercury in sediment. Science of the Total Environment, 257(2–3), 121–132.
UNEP. (2002). Global Mercury Assessment Report, draft1, 25, United Nations Environmental Program.
United States Environmental Protection Agency (2002). Method 1631, revision E. USEPA, Office of Water, Office of Science and Technology, Engineering and Analysis Division (4303), 1200 Pennsylvania Avenue NW, Washington, DC, 20460.
USEPA. (2001). Appendix to method 1631: Total mercury in tissue, sludge, sediment and soil by acid digestion and BrCl oxidation, United States Environmental Protection Agency.
Watras, C. J., Bloom, N. S., Hudson, R. J. M., Gherini, S., Munson, R., Class, S. A., et al. (1994). Sources and fates of mercury and methyl mercury in Wisconsin lakes. In C. J. Watras & J. W. Huckabee (Eds.), Mercury pollution: integration and synthesis (pp. 153–179). Boca Raton: Lewis Publishers.
Wiener, J.G., Spry, D.J. (1996). Toxicological significance of mercury in freshwater fish. In: Environmental Contaminants in Wildlife: Interpreting Tissue Concentrations. Beyer W N, Heinz G H, Redman-Norwood AW (ed) Special Publication of the Society of Environmental Toxicology and Chemistry. Lewis Publishers, Boca Raton, FL, USA. pp 297–339.
Wiener, J.G., Gilmour, C.C., and Krabbenhoft, D.P. (2003). Mercury Strategy for the Bay-Delta Ecosystem: A Unifying Framework for Science, Adaptive Management, and Ecological Restoration. Final Report to the California Bay Delta Authority.
Wiener, J. G. K., Nights, B. C., Sandheinrich, M. B., Jeremiason, J. D., Brigham, M. E., Engstrom, D. R., Woodruff, L. G., Cannon, W. F., & Balogh, S. J. (2006). Mercury in soils, lakes, and fish in voyageurs National Park (Minnesota): importance of atmospheric deposition and ecosystem factors. Environmental Science and Technology, 40, 6261–6268.
Wilson S, Munthe J, Sundseth K, Kindbom K, Maxson P, Pacyna J, Steenhuisen F (2010) Updating Historical Global Inventories of Anthropogenic Mercury Emissions to Air. AMAP Technical Report No. 3, Arctic Monitoring and Assessment Programme (AMAP), Oslo, Norway.
Yin, R., Lepak, R. F., Krabbenhoft, D. P., & Hurley, J. P. (2016). Sedimentary records of mercury stable isotopes in Lake Michigan. Elementa, 4, 86.
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The financial support from Ministry of Earth Sciences (MoES), Government of India, through their project (No. MoES/8/PC/2(3)/2007-PC-IV) is gratefully acknowledged. We also acknowledge the financial support from UGC and DST, Government of India, and KSCSTE, Government of Kerala, for setting up the lab facility. Authors also acknowledges the anonymus reviewers.
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Ramasamy, E.V., Jayasooryan, K.K., Chandran, M.S.S. et al. Total and methyl mercury in the water, sediment, and fishes of Vembanad, a tropical backwater system in India. Environ Monit Assess 189, 130 (2017). https://doi.org/10.1007/s10661-017-5845-2
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DOI: https://doi.org/10.1007/s10661-017-5845-2