Health Risk Assessment for Drinking Water in Two Villages along the Shaying River

Objective The health risks of drinking water in two villages at different distances from Shaying river were preliminary evaluated and compared.Method Based on the detection of major pollutants in drinking water,health risks induced by drinking water pathway were preliminary evaluated by health risk models.Results The health risks of drinking water in the two villages caused by carcinogens were ranked as Cr~(6+) As Cd.The risk values of Cr~(6+) and As were higher than the maximum acceptable levels recommended by ICRP(5.0 x 105 /a).The health risks caused by non carcinogens were ranked as F Pb Hg CN~- NH_3-N volatile phenols,exceeding the maximum acceptable levels(10~(-6) /a),and F-is the major risk factor.Conclusion The health risks of drinking water in the two villages existed,and the health risk value of drinking water in Baiguo village were appreciably higher,it is possibly due to its shorter distance to Shaying river.