全氟辛酸在紫贻贝体内的富集、分布与消除

崔文杰; 刘晓玉; 孙晓杰; 谭志军; 李兆新; 郭萌萌; 翟毓秀

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中国环境科学 ›› 2020, Vol. 40 ›› Issue (9) : 4091-4098.

环境毒理

全氟辛酸在紫贻贝体内的富集、分布与消除

崔文杰^1,2, 刘晓玉^1,3, 孙晓杰¹, 谭志军¹, 李兆新¹, 郭萌萌¹, 翟毓秀¹

作者信息 +

Accumulation, distribution and elimination of perfluorooctanoic acid (PFOA) in mussels (Mytilus galloprpvincialis)

CUI Wen-jie^1,2, LIU Xiao-yu^1,3, SUN Xiao-jie¹, TAN Zhi-jun¹, LI Zhao-xin¹, GUO Meng-meng¹, ZHAI Yu-xiu¹

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文章历史 +

摘要

以紫贻贝为受试生物，采用半静态暴露的方式，研究了全氟辛酸（PFOA）在紫贻贝体内的富集特征、器官分布与消除规律.结果表明，紫贻贝可快速富集PFOA，整贝在不同浓度PFOA暴露下，于4~6d达到平衡态，半衰期为0.34~0.44d（约8~10h），生物富集系数（BCFs）为5.10~9.55mL/g.PFOA在紫贻贝鳃和内脏团中的富集作用大于外套膜、性腺和闭壳肌.紫贻贝中PFOA的含量在净化6~9d后趋于空白组水平，主要代谢途径可能为鳃的作用.紫贻贝对PFOA的富集作用与暴露浓度相关，浓度越低，吸收系数和生物富集系数越大.

Abstract

The accumulation characteristics, tissue distributions and elimination pathways of perfluorooctanoic acid (PFOA) in the mussels (Mytilus galloprpvincialis) were investigated. PFOA could be accumulated rapidly by the mussels, leading to the whole-body mussels reached steady-state after 4~6d exposure to different target concentrations. The half-lives of the whole-body mussel were 0.34~0.44d (about 8~10h) with the bioconcentration factors (BCFs) ranged from 5.10 to 9.55mL/g. PFOA tended to accumulate in gills and visceral mass. The concentrations of PFOA in mussels tended to be blank level after 6~9d of depuration and the main elimination pathway may by the gills. Moreover, the bioconcentration effect of PFOA in Mytilus galloprpvincialis was related to the exposure concentrations.

导出引用

崔文杰, 刘晓玉, 孙晓杰, 谭志军, 李兆新, 郭萌萌, 翟毓秀. 全氟辛酸在紫贻贝体内的富集、分布与消除[J]. 中国环境科学. 2020, 40(9): 4091-4098

CUI Wen-jie, LIU Xiao-yu, SUN Xiao-jie, TAN Zhi-jun, LI Zhao-xin, GUO Meng-meng, ZHAI Yu-xiu. Accumulation, distribution and elimination of perfluorooctanoic acid (PFOA) in mussels (Mytilus galloprpvincialis)[J]. China Environmental Science. 2020, 40(9): 4091-4098

中图分类号： X503.225

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