荧蒽的淡水沉积物预测无效应浓度推导及生态风险评价  

Derivation of predicted no effect concentration and ecological risk assessment of fluoranthene in freshwater sediment

作　　者：李霁[1,2] 周俊丽[2] 曹莹[2] 高富[2] 刘征涛[2] 

机构地区：[1]北京师范大学水科学研究院,北京100875 [2]环境基准与风险评估国家重点实验室,中国环境科学研究院,北京100012

出　　处：《环境化学》2015年第4期664-670,共7页Environmental Chemistry

基　　金：环境保护部公益性行业专项项目(201109052)资助

摘　　要：本文基于我国本土淡水水生生物的毒性数据,采用平衡分配法,推导了荧蒽的淡水PNECsed(沉积物环境预测无效应浓度)为551.0!g·kg-1.结合获得的PNECsed,采用商值法,评价了我国主要河流沉积物中荧蒽的生态风险.结果表明,各河流沉积物中荧蒽的RQ平均值(风险商平均值)均小于1,生态风险大小依次为辽河>松花江>淮河>海河>黄河>珠江>长江.研究结果可以为荧蒽的风险管理提供技术支持.The predicted no effect concentration（PNECsed） for fluoranthene in freshwater sediments was derived according to the equilibrium partitioning method based on the toxicity data of native aquatic species in China. The PNECsed for fluoranthene was 551.0 mg·kg^-1, and this value was used to assess the ecological risks of fluoranthene in main river sediments of China according to quotient method. The results showed that the mean risk quotient value （RQmean） of fluoranthene in each river was less than 1. The ecological risk of the rivers followed the order of Liaohe River〉Songhua River 〉Huaihe River 〉Haihe River〉Yellow River〉 Pearl River〉Yangtze River. The result of this research could support the risk management of fluoranthene.

关 键 词：预测无效应浓度 荧蒽 生态风险 沉积物 

分 类 号：X826[环境科学与工程—环境工程] X592