Distribution of heavy metals in the core sediments of a tropical wetland system

  • P. S. Harikumar
  • U. P. Nasir
  • M. P. Mujeebu Rahman


Five sediment cores from the fresh water region of the Vembanad wetland system were studied for the trace element contents The average concentration of iron, manganese, nickel, copper, zinc, cadmium, lead, mercury and chromium were determined. The core samples were collected using gravity type corer, digested with a mixture of nitric acid and perchloric acid and analyzed by atomic absorption spectrophotometry. Heavy metals such as iron, copper, nickel and zinc reported enrichment towards the surface of the core sediment sample collected from the centre of the lake. Lead, cadmium and mercury showed uniform distribution through out the core. Quality of the sediments were evaluated based on sediment quality guidelines, pollution load index, sum of toxic units and with effect range low/effect range median and threshold effect level/probable effect level values of Environmental Protection Agency guidelines. The degree of contamination for each station was determined. The concentration of different heavy metals has been compared with the world average concentration of shale values. Results of the analysis showed that Vembanad lake is facing serious metal pollution with increased rate of deposition.


Trace elements lake sediments sediment quality guidelines pollution load index shale values 


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  1. Akay, H. A.; Karapire, C. O., (2003). Study of heavy metal pollution and speciation in Butak menders and Gediz river sediments. Water Res., 37(3), 813–822 (10 pages).CrossRefGoogle Scholar
  2. Alemdaroglu, T.; Onur, E.; Erkakan, F., (2003). Trace metal levels in surface sediments of lake Manyas, Turkey and tributary rivers. Int. J. Environ. Stud., 60(3), 287–298 (12 pages).CrossRefGoogle Scholar
  3. Al-Masri, M. S.; Aba, A.; Khalil, H.; Al-Hares, Z., (2002). Sedimentation rates and pollution history of a dried lake: Al-Qteibeh Lake., Sci. Total Environ., 293(1–3), 177–189 (13 pages).CrossRefGoogle Scholar
  4. Bakan, G.; Ozkoc. H. B., (2007). An ecological risk assessment of the impact of heavy metals in surface sediments on biota from the mid-Black Sea coast of Turkey. Int. J. Environ. Stud., 64(1), 45–57 (13 pages).CrossRefGoogle Scholar
  5. Balachandran, K. K.; Joseph, T.; Nair, K. K. C.; Nair, M.; Joseph, P. S., (2002). The complex estuarine formation of six rivers (Cochin backwaters system on west coast of India)-Sources and distribution of trace metals and nutrients. APN/ SASCOM/LOICZ regional workshop on assessment of material fluxes to the coastal zone in South Asia and their Impacts. Negombo, 8–11 December. Sri Lanka.Google Scholar
  6. Balachandran, K. K.; Joseph, T.; Nair, M.; Sankaranarayanan, V. N.; Das, V. K.; Sheeba, P., (2003). Geochemistry of surficial sediments along the central southwest coast of India-seasonal changes in regional distribution. J. Coast. Res., 19(3), 664–683 (20 pages).Google Scholar
  7. Bellucci, L. G.; El Moumni, B.; Collavini, F.; Frignani, M.; Albertazzi, S., (2003). Heavy metals in Morocco Lagoon and river sediments. J. Phys., 107(1), 139–142 (4 pages).Google Scholar
  8. Bertolotto, R. M.; Tortarolo, B.; Frignani, M.; Bellucci, L. G.; Albanese, S.; Cuneo, C., (2003). Heavy metals in coastal sediments of the Ligurian sea off Vado Ligure. J. Phys., 107(1), 159–162 (4 pages).Google Scholar
  9. Bonnevie, N. L.; Huntley, S. L.; Found, B. W.; Wenning, R. J., (1994). Trace metal contamination in surface sediments from Newark Bay, New Jersey. Sci. Total Environ. 144(1), 1–16 (16 pages).CrossRefGoogle Scholar
  10. Borretzen, P.; Salbu, B., (2002). Fixation of Cs to marine sediments estimated by a stochastic modeling approach. J. Environ. Radio., 61(1), 1–20 (20 pages).CrossRefGoogle Scholar
  11. Cohen, A. S., (2003). Paliolimnology, Oxford University Press, New York.Google Scholar
  12. Hakanson, L., (1980). Ecological risk index for aquatic pollution control. A sedimentological approach. Water Res., 14(5), 975–1001 (26 pages).CrossRefGoogle Scholar
  13. Harikumar, P. S.; Madhavan, K.; Shimjidha, P.; Bindu, K. R.; (2007). Study on hydrochemistry and sediment quality of Vembanad Lake in the southwest (Kerala) coast of India. Eco-chronicle., 2(2), 69–80 (12 pages).Google Scholar
  14. Heyvaert, A. C.; Reuter, J. E.; Sloton, D. G.; Goldman, C. R., (2000). Paleo-limnological reconstruction of historical atmospheric lead and mercury deposition at Lake Tahoe. California-Nevada. Environ. Sci. Tech., 34(17), 3588–3597 (10 pages).CrossRefGoogle Scholar
  15. Jain, C. K., (2004). Metal fractionation study on bed sediments of River Yamuna, India. Water Res., 38(3), 569–578 (10).CrossRefGoogle Scholar
  16. Karbassi, A. R.; Nabi-Bidhendi, G. R.; Bayati, I., (2005). Environmental geochemistry of heavy metals in a sediment core off Bushehr, Persian Gulf. Iran. J. Environ. Health. Sci. Eng., 2(4), 255–260 (6 pages).Google Scholar
  17. Lee, S. V.; Cundy, A. B., (2001). Heavy metal contamination and mixing process s in sediments from the Humber estuary, Eastern England. Estuaries Coast. Shelf Sci., 53(5), 619–636 (18 pages).CrossRefGoogle Scholar
  18. Lopez, P.; Lluch, X., (2000). Sediment geochemistry of a meromictic coastal lagoon, ESCIBOLLAR(MAJORCA, SPAIN). Limnetica, 18, 15–27 (13 pages).Google Scholar
  19. MacDonald, D. D.; Ingersoll, C. G.; Berger, T. A., (2000). Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems. Arch. Environ. Contam. Toxicol., 39, 20–31 (12 pages).CrossRefGoogle Scholar
  20. Mohamed, A. W., (2005). Geochemistry and sedimentology of core sediments and the influence of human activities, Qusier, Safaga and Hasighada Harbors, Red sea coast, Egypt. Egyptian J. Aquatic Res., 31(1), 92–103 (12 pages).Google Scholar
  21. Mudholkar, A. V.; Pattan, J. N.; Parthiban, G., (1993). Geochemistry of deep sea sediment cores from the Central Ocean Basin. Indian J. Mar. Sci., 22, 241–246 (6 pages).Google Scholar
  22. Ouseph, P. P., (1987). Heavy metal pollution in the sediments of Cochin estuarine system. National seminar on estuarine management, 123–127.Google Scholar
  23. Pederson, F.; Bjorestad, E.; Anderson, H. V.; Kjolholt, J.; Poll, C., (1998). Characterization of sediments from Copenhagen Harbour by use of biotests. Water Sci. Tech., 37(6–7), 233–240 (8 pages).Google Scholar
  24. Perin, G.; Bonardi, M.; Fabris, R.; Simoncini, B.; Manente, S.; Tosi, L.; Scotto, S., (1997). Heavy metal pollution in central Venice Lagoon bottom sediments: evaluation of the metal bioavailability by geochemical speciation procedure. Environ. Tech., 18, 593–604 (12 pages).CrossRefGoogle Scholar
  25. Pillai, V. K.; Valsala, K. K., (1995). Seasonal variation of some metals in bivalve mollusk Sunetta scripta from the Cochin coastal waters. Indian J. Mar. Sci., 24(2), 113–115 (3 pages).Google Scholar
  26. Sadiq, M., (1992). Toxic metal chemistry in marine environments. 237–241.Google Scholar
  27. Sankaranarayanan, V. N.; Jayalakshmy, K. V.; Tresiamma J., (1998). Particulate trace metals in Cochin backwaters: distribution of seasonal indices. Indian J. Fish., 45(3), 321–329 (9 pages).Google Scholar
  28. Satyanarayana, D.; Panigrahy, P. K.; Sahu, S. D., (1994). Metal pollution in harbor and coastal sediments of Visakhapatnam, east coast of India. Indian J. Mar. Sci., 23(1), 52–54 (3 pages).Google Scholar
  29. Taylor, S. R., (1972). Abundance of chemical elements in the continental crust: a new table. Geochim. Cosmochim. Acta., 28(8), 1273–1285 (13 pages).CrossRefGoogle Scholar
  30. Tomlinson, D. C.; Wilson, J, G.; Harris, C. R.; Jeffery, D. W., (1980). Problems in the assessment of heavy metals levels in estuaries and the formation of a pollution index. Helgol. Wiss. Meeresunters, 33(1–4), 566–575 (10 pages).Google Scholar
  31. UNEP, (1985). Reference methods for marine pollution studies, United Nations Environment Program. Regional seas., 31–39.Google Scholar
  32. Unnikrishnan, P.; Nair, S. M., (2004). Partitioning of trace metals between dissolved and particulate phases in a typical backwater system of Kerala, India., Int. J. Environ. Studies., 61(6), 659–676 (18 pages).Google Scholar
  33. USEPA, (1999). SW-846.,Reference methodology. Standard opening procedure for the digestion of soil/sediment sample using a hot plate/beaker digestion technique, Chicago, IL.Google Scholar
  34. Venugopal, P.; Sarala Devi, K.; Remani, K. N.; Unnithan, R. V., (1982). Trace metal levels in sediments of the Cochin backwaters. Mahasagar, 15(4), 205–214 (10 pages).Google Scholar
  35. Weis, D. A.; Callaway, J. C.; Gersberg, R. M., (2001). Vertical accretion rates and heavy metal chronologies in wetland sediments of the Tijuana Estuary. Estuaries, 24(6A), 840–850 (11 pages).CrossRefGoogle Scholar

Copyright information

© Islamic Azad University 2009

Authors and Affiliations

  • P. S. Harikumar
    • 1
  • U. P. Nasir
    • 1
  • M. P. Mujeebu Rahman
    • 1
  1. 1.Central Water Analysis LaboratoryCentre for Water Resources Development and ManagementKunnamangalam, Kozhikode, KeralaIndia

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