Abstract
The assessment of groundwater quality is an obligatory pre-requisite to developing countries like India with rural-based economy. Heavy metal concentration in groundwater from Besant Nagar to Sathankuppam, South Chennai was analyzed to assess the acquisition process. The study area has rapid urbanization since few decades, which deteriorated the condition of the aquifer of the area. Totally 30 groundwater samples were collected during pre-monsoon (June 2014) and post-monsoon (January 2015) from the same aquifer to assess the heavy metal concentration in groundwater. Groundwater samples were analyzed for heavy metals such as Fe, Pb, Zn, Cu, Ni, Cr, Co and Mn using atomic absorption spectrophotometry (AAS). Correlation matrix revealed that there is no significant correlation between heavy metals and other parameters during pre-monsoon except EC with Cr but Fe and Zn have good positive correlation during post-monsoon.
Highlights
Recent trends show that our world is moving towards the greatest problem due to deficiency of quality and quantity of water
The minimum and maximum values of results obtained for 30 samples that were collected during pre- and post-monsoon seasons are presented in Table 1, with its BIS (2012)
During PRM all the samples are within permissible limit of Bureau of Indian Standards (BIS 2012) but five samples exceed the permissible limit in POM (Fig. 3), which indicate that rainwater helps to add salts from surface to groundwater during monsoon season
Summary
Recent trends show that our world is moving towards the greatest problem due to deficiency of quality and quantity of water. Even though major elements give quality index for drinking water, in particular, heavy metal concentrations are noticed and reported because of its toxic nature. Groundwater samples are being collected during pre- and post-monsoon seasons (June 2014 and January 2015). They were analyzed for their heavy metals, such as Fe, Pb, Cd, Zn, Cu, Ni, Cr, Co and Mn. They were analyzed for their heavy metals, such as Fe, Pb, Cd, Zn, Cu, Ni, Cr, Co and Mn Their concentrations during pre- and post-monsoon seasons were compared. Using BIS (2012) the quality of groundwater at some locations is being warranted
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