Health risk assessment of organic pollutants in Jiangsu Reach of the Huaihe River, China

摘要

In order to evaluate the potential health risk to local public caused by water pollution in Jiangsunreach of the Huaihe River, various organic pollutants, including Polycyclic Aromatic Hydrocarbonsn(PAHs), Organochlorine Pesticides (OCPs) and some other Semi-Volatile Organic Compoundsn(SVOCs), were determined. Preliminary health risk assessment (HRA) was performed byncalculating the probability that the concentrations of detected compounds exceeded HHCWOn(Human Health Criteria for Consumption of Water and Organism) after Kolmogorov-Smirnov test.nThe probabilities of posing a risk higher than 1026 for most potential carcinogens were greaternthan 0.5, and some even approximated 1. Further HRA for potential carcinogens was performednbased on Monte Carlo simulation. Cumulative Risk Probability (CRP) was introduced toncharacterize risk. The result showed that 3,30-dichlorobenzidine posed the highest risk. PAHs withn4 , 6 rings and some OCPs, such as heptachlorepoxide, aldrin and o,p0-DDT, also posednrelatively high risk. Generally, there was a high level of heath risk in the study area. The studynvalidated the high cancer incidence rate in areas along the Huaihe River.