邻氨基苯酚对水生生物毒性效应  

Research on Toxicity Effects of O-aminophenol on Aquatic Organisms

作　　者：林绍霞 龚会琴 李俊 杨鸿波 LIN Shaoxia;GONG Huiqin;LI Jun;YANG Hongbo(Guizhou Academy of Testing and Analysis,Guiyang 550014,China)

机构地区：[1]贵州省分析测试研究院,贵阳550014

出　　处：《实验室研究与探索》2020年第5期31-35,共5页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(21767006);国家国际科技合作项目(2011DFB41640)。

摘　　要：为评估邻氨基苯酚对水生生物的毒性效应,以羊角月牙藻、大型溞、稀有鮈鲫为试验生物,采用半静态试验方法,研究不同暴露条件下,邻氨基苯酚对3个营养级水平上代表性水生生物的毒性和半数效应浓度。试验结果表明,羊角月牙藻72 h的EC50为0.78 mg/L,属极高毒性级别;大型溞48 h的EC50为2.2 mg/L,属高毒级别;稀有鮈鲫96 h的LC50为1.16 mg/L,属高毒级别,稀有鮈鲫全部死亡的最低浓度为2.00 mg/L,全部存活的最高浓度为0.80 mg/L。按照化学品风险管理敏感性生物限制原则,邻氨基苯酚的水生生物毒性应为极高毒性。In order to evaluate the toxic effects of O-aminophenol on aquatic organisms,the Selenastrum capricornutum,Daphnia magna and Gobiocypris rarus were used as tested organism in this study.The Semi-static test was adopted to obtain the toxicity data of the three typical aquatic organisms in 3 grades nutritional food chain through exposure different conditions.The results show that the 72 h-EC50 value of O-aminophenol is 0.78 mg/L for Selenastrum capricornutum,which belongs to very toxic;and the 48 h-EC50 value of O-aminophenol is 0.78 mg/L for Daphnia magna,which belongs to high toxic;96 h-LC50 is 1.16 mg/L for Gobiocypris rarus, which belongs to high toxic too.The LOEC of O-aminophenol is 2.00 mg/L for Gobiocypris rarus,and the NOEC is 0.80 mg/L.O-aminophenol should be consider as very toxic substance for aquatic organisms according to the principle of priority protect sensitive species during risk management of chemical.

关 键 词：邻氨基苯酚 水生生物 急性毒性 

分 类 号：X171[环境科学与工程—环境科学]