The evaluation of the risk of quality of underground wells of Ardabil plain to heavy metals
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2015, Vol 7, Issue 1
Abstract
Water is vital element for human being and due to anthropogenic activities; its health for drinking is threatened. Heavy metals in water can pose threat on people. Heavy metals can move in food chain and can have harmful effect on the life of creatures in earth. This study applied fuzzy inference system to evaluate the heavy metals risk in rural drinking water in Ardabil plain. To do this, the information of rural water and wastewater company of Ardabil is used. To implement the mentioned model, at first all 6 heavy metals including Chromium, Cadmium, lead, Manganese, copper and Zinc are evaluated in all zoning regions and then membership functions of each metal were drawn in MATLAB software and then via if-then rules, the final map of risk was provided. The results showed that about 18% of the region had low risk and 55% with average and 27% with high risk. The majority of pollution in the studied region is dedicated to north and some regions of south. For validity evaluation, the results of 62 areas as industrial townships and factories are applied, the results of validation show that about 70% of investigated areas were in high risk and it showed high validity of model.
Authors and Affiliations
Hadi Ravan Nakhjavni, Ebrahim Fataei
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