Evaluation of Human Health Risks Associated with Groundwater Contamination and Groundwater Pollution Prediction in a Landfill and Surrounding Area in Kaifeng City, China

Landfill accumulation can cause its leachate to seep into groundwater, which lower the quality of local groundwater. Exploring risks groundwater contamination human health in area around a landfill offer clear understanding current situation regional and provide theoretical basis for remediation governance. By taking Kaifeng City, China as research object, this study explored chemical types sources area, used entropy-weighted water index (EWQI) evaluate assessed area. The results show that is neutral (7.14 ≤ pH 7.86), type HCO3−—Ca·Na. EWQI indicated overall ranges from 48.4 250.26, above medium level, poor. deterioration mainly influenced by NH4+-N, Mn, As, F− Pb. According risk assessment model, non-carcinogenic humans through oral dermal exposure be assessed. In paper, five ions, Pb were selected analysis assess administration. showed hazard quotient (HQ) values varied following ranges: 9.14 × 10−4—0.03; 0.07—0.22; 0.02–0.07; 0.16—0.23; 0.01—0.13, respectively (all these are less than 1, so potential ignored). characteristic pollutant was predictor influence on eastern fish ponds farmlands under continuous leakage. leakage detected timeously reduce effects downstream using enhanced monitoring measures.