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Paper Details

Seasonal Changes on Heavy Metal Contamination in the Water Samples of Selected Temple Tanks in Kanyakumari District, South India

1P. Maria Pushpam*, 2 V. Umayoru Bhagan and 3 G. Immanuel

Journal Title:Journal of Chemical, Biological and physical sciences

The objective of the present study is to reveal the seasonal variation on heavy metal contamination in the water samples of selected temple tanks of Kanyakumari District, Tamil Nadu, South India. To get the extent of heavy metal contamination, water samples were periodically collected from ten different temple tanks every month for a period of one year (January 2009 to December 2009). The collected water samples were immediately acid digested in the laboratory and the concentration of the heavy metals such as iron, copper, zinc, manganese and lead were determined using Atomic Absorption Spectrometer. The data obtained in every month were pooled and presented as seasonal data viz., premonsoon, South-West monsoon and North-East monsoon. The maximum mean concentration of iron (0.463ppm), copper (0.105ppm) and lead (0.221ppm) were observed during premonsoon season. But zinc (0.026ppm) and manganese (0.091ppm) exhibited their maximum value during North-East monsoon season. All the trace metals possess concentration above the permissible limit of IS: 10500 1991 and WHO, except zinc and manganese during the study period. The concentration of the metals followed with the sequence: iron > lead > copper > manganese > zinc.