全氟辛酸在紫贻贝体内的富集、分布与消除  

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

作　　者：崔文杰 刘晓玉 孙晓杰[1] 谭志军[1] 李兆新[1] 郭萌萌[1] 翟毓秀[1] CUI Wen-jie;LIU Xiao-yu;SUN Xiao-jie;TAN Zhi-jun;LI Zhao-xin;GUO Meng-meng;ZHAI Yu-xiu(Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Qingdao 266071,China;College of Food Science and Engineering,Ocean University of China,Qingdao 266003,China;College of Food Science and Technology,Shanghai Ocean University,Shanghai 201306,China)

机构地区：[1]中国水产科学研究院黄海水产研究所,山东青岛266071 [2]中国海洋大学食品科学与工程学院,山东青岛266003 [3]上海海洋大学食品学院,上海201306

出　　处：《中国环境科学》2020年第9期4091-4098,共8页China Environmental Science

基　　金：国家重点研发计划项目(2017YFC1600705);国家自然科学基金项目(41906130);中国水产科学研究院基本科研业务费项目(2020TD71);国家市场监督管理总局技术保障项目(2020YJ027)。

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.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 4~6 d exposure to different target concentrations.The half-lives of the whole-body mussel were 0.34~0.44 d(about 8~10 h)with the bioconcentration factors(BCFs)ranged from 5.10 to 9.55 mL/g.PFOA tended to accumulate in gills and visceral mass.The concentrations of PFOA in mussels tended to be blank level after 6~9 d 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.

关 键 词：全氟辛酸(PFOA) 紫贻贝 生物富集 组织分布 消除 

分 类 号：X503.225[环境科学与工程—环境工程]