CAJ | 학술논문

为研究长江岳阳段水环境污染对人体健康产生的危害风险，根据2008-2012年长江岳阳段水质监测数据，采用美国环境保护署（USEPA）推荐的水环境健康风险评价模型，对长江岳阳段通过饮用水途径引起的水环境健康风险进行了评价。结果表明：总健康风险在1.64×10-5~2.25×10-5 a -1之间，平均为1.91×10-5 a -1，均低于国际辐射防护委员会（ICRP）推荐的最大可接受风险水平5×10-5 a -1，对照水环境健康风险等级划分标准，长江岳阳段水环境健康风险为较低健康风险；化学致癌物质健康风险 As > Cd、平水期>丰水期>枯水期，非致癌物质健康风险氟化物> Cu >NH3- N > Zn、枯水期>丰水期>平水期；总健康风险主要来自化学致癌物质，其中 As 为主要风险污染物，因此化学致癌物质尤其是 As 应作为风险决策管理的重点对象。
위연구장강악양단수배경오염대인체건강산생적위해풍험，근거2008-2012년장강악양단수질감측수거，채용미국배경보호서（USEPA）추천적수배경건강풍험평개모형，대장강악양단통과음용수도경인기적수배경건강풍험진행료평개。결과표명：총건강풍험재1.64×10-5~2.25×10-5 a -1지간，평균위1.91×10-5 a -1，균저우국제복사방호위원회（ICRP）추천적최대가접수풍험수평5×10-5 a -1，대조수배경건강풍험등급화분표준，장강악양단수배경건강풍험위교저건강풍험；화학치암물질건강풍험 As > Cd、평수기>봉수기>고수기，비치암물질건강풍험불화물> Cu >NH3- N > Zn、고수기>봉수기>평수기；총건강풍험주요래자화학치암물질，기중 As 위주요풍험오염물，인차화학치암물질우기시 As 응작위풍험결책관리적중점대상。
For the Yueyang reach of Yangtze River,the water environmental health risk assessment model recommended by USEPA was used to evaluate the risk on human health caused by water pollu-tion,and the monitoring data of 2008 - 2012 was applied. The result showed that,the total health risk was in 1. 64 × 10 - 5 a - 1 - 2. 25 × 10 - 5 a - 1 ,averaged as 1. 91 × 10 - 5 a - 1 ,lower than the maxi-mum acceptable level 5 × 10 - 5 a - 1 recommended by ICRP. In contrast with water environmental health risk classification standard,the Yueyang reach of Yangtze Rive is in lower health risk level. The rankings of health risk from chemical carcinogens are As > Cd and normal water period > high water period > low water period,the rankings of health risk from non - carcinogens are fluoride > Cu> NH3 - N > Zn and low water period > high water period > normal water period. Owing to the total health risk mainly from chemical carcinogens,in which As is a major risk pollutant,therefore,stric-ter governing of chemical carcinogens,especially As,is an effective way to reduce the water environ-mental health risk for the Yueyang reach of Yangtze River.