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Investigation of Heavy Metals in the Surface and Groundwater and its Health Risk Assessment in the Parts of Gudiyattam Region, Tamilnadu, India
 
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Department of Environmental and Water Resource Engineering, School of Civil Engineering, Vellore Institute of Technology, Vellore 632014, Tamilnadu, India
 
 
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Porchelvan Ponnusamy   

Department of Environmental and Water Resource Engineering, School of Civil Engineering, Vellore Institute of Technology, Vellore 632014, Tamilnadu, India
 
 
Ecol. Eng. Environ. Technol. 2023; 5:20-29
 
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Health risk assessment and heavy metals analysis was carried out for 8 lakes water samples and 8 open well water samples in Gudiyattam region. Metal Index(MI), Adult Infusion(AI), and Hazardous Quotient(HQ) were determined to know the health risk in all locations using ingestion and dermal pathway. MI values are greater than 1 in all lakes as well as in well water for the location S1 to S3 and in S6 which indicates this water is unfit for drinking purposes. Based on HQingestion and HQdermal value, the location S1 to S4 are more polluted for the lake water. Among all the well locations S4 is the most polluted. Considering the Hazard Index (HI) of these metals was found to be greater than 1. Carcinogenic Index(CI) exceeded the acceptable limit of 1.0x 10(-06 to-04) in 5 locations for lake water and 1 location for well water. Especially the location S4 in lake water as well as in well water have direct proportionality in pollution load. The water sample previously said location can pose a serious risk to living beings.
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