受污染地表水的生物毒性效应分析  

Analysis of Biotoxicity Effect for the Polluted Surface Rivers

作　　者：申颖洁[1] 顾永钢[1] 廖日红[1] 战楠[1] 刘操[1] 黄赟芳[1] 

机构地区：[1]北京市水利科学研究所,北京100048

出　　处：《环境科学与技术》2011年第10期1-5,共5页Environmental Science & Technology

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07314-009);北京市重大科技专项(D07060601980802);北京市科技新星计划(2009B31);北京市自然科学基金(8092011)

摘　　要：针对以非常规水源补水的受污染地表水的生态安全问题,文章以北京地区受污染河水为试验用水,利用多组生物效应试验(发光菌、大型蚤和仔鱼)进行急性生物毒性检测,并与污水厂二级出水和再生水厂出水水质进行比较。结果表明:受污染地表水在浓缩倍数达50倍时,发光细菌相对抑制率达到50%以上,大型蚤和仔鱼的急性毒性试验死亡率均达到100%;20倍浓缩时,受污染地表水对大型蚤和青鳉仔鱼的致死率分别为60%和80%以上,再生水厂出水对大型蚤和仔鱼致死率均为0%;由此可见,再生水厂出水与其他测试水样相比具有较低毒性。针对地表水非常规补给水源水,建议研究科学的人体健康安全和生态安全综合指标体系。Multi-groups biological effect tests were applied to detect the biological toxicity of unconventional water source supply-type polluted surface water for the ecological risk,and the results were compared with that of the secondary effluent and reclaimed water.It is indicated that while the concentration coefficient reached 50,relative inhibitory rates of luminescent bacteria attained above 50%,the mortality rate of Daphnia magna and Oryzias latipes both attained 100% for the test river water.When the concentration coefficient reached 20,the mortality rates of Daphnia magna and Oryzias latipes attained 60% and 80% respectively for the test water,but those for the reclaimed water were both 0%.Obviously,the reclaimed water had lower biological toxicity than other kinds of test water.Scientific human health risk and ecological risk composite indicators for non-conventional source water should be studied further in the future.

关 键 词：受污染地表水 生物毒性 发光细菌 大型蚤 仔鱼 

分 类 号：X171[环境科学与工程—环境科学]