Assessment of the groundwater quality by using multivariate approach and non-carcinogenic risk of uranium in the inhabitants of District Bastar, Chhattisgarh Central India

The elevated levels of uranium found in 17 state of India which is alarming the radionuclide contamination in groundwater. Chronic ingestion can cause potential harm to humans and living things such as damage to kidney, cancer of liver, lungs, and bones. Present study to assess groundwater quality using multivariate approach and non-carcinogenic exposure of uranium in residents of district Bastar, Chhattisgarh. The concentration of uranium in groundwater samples was ranged from 0.50-26.4 mu g/l in 70 samples, with 82% of samples being beyond the recommended limits of International Commission on Radiological Protection. Hierarchical cluster analysis is dividing all sampling locations into 10 clusters explaining similarity of geological condition. Factor analysis has extracted four principal components or factors with 70.20% cumulative variance from the entire data set. CDI has been found above from the reference dose in 34.29, 42.86, and 51.43% for young children, children and adults. The results of Hazard Quotient (HQ) classifying the degree of non-carcinogenic risk which was >1 in 34.28, 45.71, and 41.43% of the samples for young children, children and adults respectively. This study will generate base line data and suggest needs for revision of water quality monitoring plan and preventive water management practice.