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.
出处
《环境化学》
CAS
CSCD
北大核心
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
