环境中全氟化合物的研究进展

【作者】 王贺威； 蔡文贵； 贾晓平；

【机构】 中国水产研究院南海水产研究所广东省渔业生态环境重点研究室农业部南海渔业资源环境重点野外科学观测实验站； 上海海洋大学海洋科学学院；

【摘要】 全氟化合物是一类新型持久性环境污染物,由于碳-氟键具有强极性,所以在环境中的积累和生物富集性很强,并且已经在全球都有了分布,其中只有南极的浓度较小,其浓度与离污染源的远近和传输过程中的载体流向有关,但是在大尺度上的传输方式上还没有大家都认可的理论。在全球各地的人体中也有PFCs的检出,来源与食物摄入有关,特别是食用海洋鱼类,在生物体中的浓度与该生物所在的营养级和污染源的远近有直接的相关性,并且主要在生物的血液、肌肉和肝脏富集。该类物质对生物的毒理作用是生物体内的生命物质载体发生变化而引起的一系列反应,由于种属差异以及一些研究资料的尚不确定性,根据现有资i料对PFCs进行安全性评价的科学性值得商榷,进一步深入对其毒作用敏感指标及毒作用机制和对环境的影响的探讨与研究,将成为的研究重点。更多还原

【Abstract】 Perfluorinated compounds is a kind of new durable environmental pollutants,because C-F is strong polar,accumulation in the environment and the bioconcentration are strong,and have been distributed worldwide,of which only concentrations of Antarctica is smaller,density of which are related to the distance to the source of pollution and the flow direction of the carrier,and there was no acceptable theory in its large scale transmission.PFCs are checked out in human body worldwide,that are related to the intake of food,especially eating marine fish.The concen -tration of PFCs in the organism is directly related with the biological nutrient level and distance of pollution sources,that are manly enriched in blood, muscle and liver,The toxicological effects of PFCs on organism are a series of reactions caused by the changes of the life of material carriers in the body.Beside that species differences as well as some of the information is not certainty,based on available information on PFCs in the safety evaluation of the science is quest- ionable.Discussion and research on the PFCs,further sensitive indicator of toxic effects and the toxic mechanism and impact on the environment,will be the research point.更多还原