黄河三门峡段水环境健康风险评价

基于水环境健康风险评价模式,选择1995年至2002年的水质监测资料,对黄河三门峡段进行了水环境健康风险评价。评价结果表明:非致癌物质由饮水途径所致健康危害的个人年风险以Pb为最大,NH3-N次之;化学致癌物质中As和Cd的最大个人年风险分别达到2.272×10-4a-1和3.173×10-5a-1。化学致癌物质对人体健康危害的个人年风险远远超过非致癌物质对人体健康危害的个人年风险,应作为风险决策管理的重点对象。

Water environmental health risk assessment for the Sanmenxia reach of the Yellow River

Water environmental health risk assessment for the Sanmenxia reach of the Yellow River was conducted based on the water environment health risk analysis model and the monitoring data during 1995-2002.The result shows that the maximal annual health risk for individual person due to non-carcinogens from drinking water comes from Pb,and the next is NH_3-N.Among chemical carcinogens, the maximal risk is due to As and Cd respectively,whose risk are up to 2.272×10~(4)a~(-1) and 3.173×10~(-5) a~(-1).The health risk for individual person caused by chemical carcinogens is greater than non-carcinogens,so chemical carcinogens must be paid much attention in the risk decision-making management.