State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Sci Total Environ. 2019 May 15;665:1026-1034. doi: 10.1016/j.scitotenv.2019.02.165. Epub 2019 Feb 15.
PFAAs have emerged as persistent organic pollutants (POPs) in a variety of environmental matrixes and biota, posing potential hazards for wildlife and humans. Diet has been considered as an important source for human exposure to PFAAs and seafood accounts for a relatively large proportion in human diets, especially for coastal residents. In an effort to clarify the impact of PFAAs in seafood on human health, 17 PFAAs were determined in 42 pooled seafood samples (14 species) from the Yellow Sea areas, China. The concentrations of total PFAAs (sum of 17 PFAAs, ∑PFAAs) were in the range of 1.10-1067 ng/g dry weight (dw), with the highest concentration found in swimming crab (Portunus trituberculatus) and the lowest in silvery pomfret (Pampus argenteus). Concentrations and composition profiles of PFAAs varied significantly among different species, suggesting that bioaccumulation potential of PFAAs differed from species to species. The distinct spatial distribution of PFAAs in four categories of seafood could be mainly attributed to the contamination patterns of PFAAs in three nearby cities. PFBA was presented as the most abundant PFAA in this study, which was different from the findings in many other studies where PFOS was the predominant compound. Furthermore, the human health risk assessment suggested that a comprehensive action plan is needed to protect people from high exposure to PFAAs through seafood consumption.
全氟辛酸及其盐类（PFAAs）作为一种持久性有机污染物（POPs），广泛存在于各种环境基质和生物群中，对野生动物和人类构成潜在危害。饮食被认为是人类接触 PFAAs 的重要来源，而海鲜在人类饮食中占有相对较大的比例，尤其是对于沿海居民而言。为了明确海鲜中 PFAAs 对人类健康的影响，本研究在中国黄海地区采集了 42 个海鲜混合样本（14 个物种），共检测了 17 种 PFAAs。研究结果表明，17 种 PFAAs 的总浓度（∑PFAAs）范围为 1.10-1067ng/g 干重，其中游泳蟹（Portunus trituberculatus）的浓度最高，银鲳（Pampus argenteus）的浓度最低。不同物种之间 PFAAs 的浓度和组成谱差异显著，表明 PFAAs 的生物累积潜力因物种而异。四类海鲜中 PFAAs 的明显空间分布主要归因于三个附近城市 PFAAs 的污染模式。本研究中 PFBA 是最丰富的 PFAAs，这与许多其他研究中 PFOS 是主要化合物的发现不同。此外，本研究的健康风险评估表明，需要采取综合行动计划，通过控制海鲜消费来保护人们免受 PFAAs 的高暴露。
