Seasonal variation of heavy metal contamination of groundwater in and around Udaiyarpalyam taluk, Ariyalur district, Tamil Nadu

The study was carried out to determine the concentration of heavy metal ions in and around this area. Thirty two ground water samples were collected from in and around Udaiyarpalyam taluk during pre-monsoon and post monsoon season during the year of 2014. The concentration of trace metals such as iron, lead, cadmium, and chromium were determined using atomic absorption spectrophotometer and the results were compared with the World Health Organization (WHO) and Bureau Indian standard (BIS) values. It reveals revealed the presence of some heavy metals in few ground water samples and hence refers heavy metal contamination of water sources. The result shows that most of the groundwater is deteriorated less than the permissible limit of WHO