Heavy Metal Contamination of Water Bodies, Soils and Vegetables in Peri-Urban Areas: A Case Study in Bangaluru

Authors

  • L R Varalakshmi Author
  • A N Ganeshamurthy Author

DOI:

https://doi.org/10.24154/jhs.v7i1.392

Keywords:

Heavy Metals, Peri-Urban, Water Bodies, Soils, Vegetables

Abstract

A study was conducted in peri-urban Bangaluru (where city wastewater from four water bodies, viz., Bellandur, Varthur, Byramangala and Nagavara tanks, is being used for cultivation of vegetable crops) to assess heavy metal contamination in water, soil and vegetable samples. Analyses revealed that concentration of cadmium (Cd) and chromium (Cr) in waters from all the tanks exceeded recommended levels of 0.01 and 0.1 mg/l, respectively, while content of lead (Pb) and nickel (Ni) are within safe limits. Concentration of Cd was highest in the water of Bellandur tank (0.039 mg/ l) and of Cr was highest in the water of Byramangala tank (0.311 mg/l). Bellandur and Varthur tanks were found highly contaminated with Cd, Pb and Ni. Mean concentration of heavy metals in soils receiving sewage water from the four tanks ranged from 1.92 to 2.9 mg/kg for Cd, 47.04 to 68.12 mg/kg for Pb, 35.08 to 92.78 mg/kg for Cr and 48.2 to 57.3 mg/kg for Ni. Cd and Pb content were highest in soils around Varthur and Bellandur tanks, while, mean concentration of Cr was highest in soils around Byramangala tank. Similar trends were observed for heavy metal content in vegetables. Among the vegetables studied, leafy vegetables accumulated higher concentration of heavy metals, followed by root vegetables. Cd concentration in all the vegetables grown around Varthur and Bellandur tanks exceeded the safe limit prescribed under Prevention of Food Adulteration Act (PFA 1954). Pb and Ni concentration exceeded safe limits in all the vegetables in all the tank areas studied.

References

Allen, S.E., Grimshaw, H.M. and Rowland, A.P. 1986. Chemical analysis. In: Methods in Plant Ecology. Moore, P.D., Chapman, S.B. (eds.).-Blackwell Scientific Publication, Oxford, London, pp. 285-344

Awasthi, S.K. 2000. Prevention of Food Adulteration Act No. 37 of 1954. Central and State rules as amended for 1999. 3 rd edition, Ashoka Law House, New Delhi

Gupta, N., Khan, D.K. and Santra, S.C. 2008. An assessment of heavy metal contamination in vegetables grown in waste water irrigated areas of Titagarh, West Bengal, India. Bull. Environ. Contam . Toxicol., 80:115-118

Jidesh, C.V. and Kurumthottical, S.T. 2000. Selective retention of cadmium and lead in different parts of chilli (Capsicum annuum L.). J. Trop. Agri., 38:51-54

Kabata-pendias, A. and Pendias, H. 1984. Trace elements in soils and plants. 2nd edition, Boca Raton, Florida, pp. 365

Lokeshwari, H. and Chandrappa, G.T. 2006. Impact of heavy metal contamination of Bellandur lake on soils and cultivated vegetation. Curr. Sci., 91:622-627

Michalska, M. 1997. Accumlation of cadmium and lead by different lettuce cultivars. In: Proc. Int’l. Seminar on Ecological aspects of nutrition and alternatives for herbicides in Horticulture, Warsaw-Ursynow, Poland, pp. 53-54

Pescod, M.B. 1992. Waste water treatment and use in agriculture. FAO irrigation and drainage paper 47, Food and Agriculture Organization of the United Nations, Rome

PFA. 2004. Prevention of Food Adulteration Act, 1954, with prevention of food adulteration rules as on 1/10/2004. International Law Book Company, Delhi, pp. 147-153

Sorme and Lagervist, R. 2002. Sources of heavy metals in urban waste water in Stockholm. Sci. Total Environ., 298:131-145

Sharma, R.K., Agarwal, M. and Marshall, F.M. 2007. Heavy metal contamination of soil and vegetables in suburban areas of Varanasi, India. Ecotox. Environ. Safe., 66:258-66

Sharma, R.K., Agarwal, M. and Marshall, F.M. 2009. Heavy-metals in vegetables collected from production and market sites of a tropical urban area of India. Food Chem Toxicol., 47:583-591

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Published

30-06-2012

Issue

Section

Original Research Papers

How to Cite

Varalakshmi, L. R., & Ganeshamurthy, A. N. (2012). Heavy Metal Contamination of Water Bodies, Soils and Vegetables in Peri-Urban Areas: A Case Study in Bangaluru. Journal of Horticultural Sciences, 7(1), 62-67. https://doi.org/10.24154/jhs.v7i1.392

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