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Pollution due to Heavy Metals in Coimbatore Wetlands, India

Author Affiliations

  • 1Centre for Climate Change and Adaptation Research, Anna University, Chennai- 600 025, INDIA
  • 2Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore-641 003, INDIA
  • 3Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore-641 003, INDIA

Res. J. Agriculture & Forestry Sci., Volume 3, Issue (6), Pages 1-5, June,8 (2015)

Abstract

Coimbatore is the second largest industrial city of Tamil Nadu and it is also mentioned as the Manchester of Tamil Nadu. There are plenty of wetlands available in this city and unfortunately these wetlands are now changing to waste lands because of the increasing discharge of effluents from various industries. These effluents further reduce the productivity of soil and it contaminates the natural water bodies as well as ground water. In this study the water samples were collected for heavy metals analysis by using Atomic absorption spectrophotometer. The results from the water analysis revealed that, heavy metal concentration of Cd, Cr, Cu, Ni and Pb were exceeded the permissible limit prescribed for drinking water (WHO standard) and also irrigation standard (FAO). Water samples from 12 wetlands exhibited heavy metal concentration in the following range: Cd - 0.2 to 0.7 mg L-1, Cr- 3 mg L-1 to 518 mg L-1, Cu -1.0 to 98 mg L-1, Ni - 7.0 to 33 mg L-1 and Pb - 0.9 and 3.0 mg L-1 respectively. The results evident that the relative proportion of heavy metals are in an increasing the order of Cr> Cu > Ni >Pb> Cd. This study also delineated the heavy metal contamination in the 12 wetlands of Coimbatore city using ArcGIS 9.3. Finally we conclude that the water in the wetlands is not fit for human and animal consumption.

References

  1. Rajaganapathy V., Xavier F., Sreekumar D and MandalP. K., Heavy metal contamination in soil, water andfodder and their presence in livestock and products, J. ofEnviron. Sci. and Technol., 4, 234 249 (2011)
  2. Akpor O.B and Muchie M., Remediation of heavy metalsin drinking water and Wastewater treatment systems:Processes and applications, International Journal of thePhysical Sciences, 5(12), 1807-1817 (2010)
  3. Wuana R. A and Okieimen F. E., Heavy metal incontaminated soils: A Review of sources, chemistry,Risks and best available strategies for remediation, Int.Scholarly Res. Network: Ecol., 10, 1-20 (2011)
  4. Mahimairaja S., Bolan N.S., Adriano D.C and RobinsonB., Arsenic contamination and its risk management incomplex environmental settings, Adv. Agron., 86, 1-82(2005)
  5. Somasundaram J., Evaluation of sewage sludge coir pithpellets on fodder crops and biotransfer of heavy metal, Ph.D., Thesis, Tamil Nadu Agricultural University,Coimbatore, (2001)
  6. Gandhimathi A and Meenambal T., Analysis of Heavymetal for soil in Coimbatore by using ANN model, European J. of Sci. Res., 68, 462-474 (2012)
  7. Gandhimathi A and Meenambal T., Spatial prediction ofheavy metal pollution for soils in Coimbatore, Indiabased on Universal kriging, (As, Hg and Cd), Int. J. ofAdv. Engi. Technol., 2, 410-417 (2011)
  8. Yu-Bin T.L., Bai-You C., Guey-Shin S and Tsun-Kuo C., Combining a finite mixture distribution model withindicator kriging to delineate and map the spatial patternsof soil heavy metal pollution in Chunghua County, Environ. Pollu., 158, 235244 (2010)
  9. Jackson M.L., Soil chemical Analysis, Printice Hall ofIndia (Pvt.) Ltd., New Delhi, 50 (1984)
  10. WHO, In Guidelines for Drinking -water quality, (3rdeds.), WHO, Geneva, 296-459 (2008)
  11. FAO, In FAO irrigation and drainage paper, California,USA, 1-10 (1994)
  12. Mohanraj R., Sathiskumar M.P., Azeez A and SivakumarR., Pollution status of wetlands in urban Coimbatore, Tamil Nadu, Bull. Environ. Contamination Toxiocology,64, 638-643 (2000)
  13. Malarkodi M., Krishnasamy R., Kumaraperumal R andChideshwari T., Characterization of Heavy metalContaminated soils of Coimbatore District in TamilNadu, Journal of Agronomy, 6, 147-151 (2007)
  14. Tiller K.G., Soil contamination Issues: past, present andfuture, a personal perpective, In Contaminants and thesoil environment in the Australia- Pacific Region, 12, 1-26 (1996)