鱼类急性毒性试验在死鱼事件仲裁监测中的应用  

Application of fish acute toxicity test on arbitration monitoring during fish killing accident

作　　者：朱大明 胡迪琴 余文永 梁永禧 

机构地区：[1]广州市环境监测中心站,广州510030

出　　处：《三峡环境与生态》2008年第1期19-21,共3页Environment and Ecology in the Three Gorges

基　　金：广州市环境保护专项项目资助(2003-12)

摘　　要：为了仲裁2006年2月广州某河段大量死鱼事件中鱼类死亡原因而进行的监测时,用白鲢鱼种(Hy-pophthamichthys molitrix)对污染源废水及鱼塘水分别进行了鱼类急性毒性试验。污染源废水和鱼塘水的96hLC50分别为2.65%、33.13%,污染源废水和鱼塘水的COD、BOD、氰化物、重金属(镍、锌、铜、铅、镉)等均出现超标情况,其中氰化物、重金属(镍、锌、铜、铅、镉)污染物严重超标。监测结果表明,以重金属污染为主的电镀废水是导致死鱼事件的主要原因。In order to monitor the cause for arbitration of a fish killing accident occurred in some river in Guang- zhou in February 2006, fish acute toxicity tests with Hypophthamichthys molitrix were conducted with the conta- minated water and the water from a fish pond. 96hLC50 values of water samples from the pond and the contaminated source water were 33. 13%, 2. 65%, respectively. COD, BOD, cyanide, heavy metal （ Ni2＋ , Zn2＋ 、 Cu2＋ 、 Pb2＋ , Cd2＋ ） in both water samples were over-standard. The result showed that effluent of the electroplate factory is the main cause of fish kills accident.

关 键 词：鱼类急性毒性 微核 废水 死鱼事件 

分 类 号：S941[农业科学—水产养殖]