Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, PR China; Key Laboratory of Sustainable Utilization of Technology Research for Fisheries Resources of Zhejiang Province, Marine Fishery Institute of Zhejiang Province, Zhoushan, Zhejiang 316021, PR China.
Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, PR China.
Sci Total Environ. 2020 Jun 15;721:137605. doi: 10.1016/j.scitotenv.2020.137605. Epub 2020 Feb 27.
Owing to the wide application of phthalic acid esters (PAEs) in the manufacturing of plastic products, they are ubiquitous in the marine environment. However, the occurrence of various PAEs in marine organisms from China has not been well characterized. In this study, 341 marine organism samples (including fish, shrimp, crab, and shellfish) were collected from Hangzhou Bay, China and analyzed for 16 PAEs. Further, the human PAE exposure risks raised from the consumption of marine organisms were evaluated for adults and children. In total, eight PAEs were detected in collected organism samples, with the concentration of total PAEs (∑PAEs) ranging from 64 to 2840 ng/g (mean 238 ng/g). Crab (mean 811 ng/g) samples had the highest mean concentration of ∑PAEs, followed by fish (465 ng/g), shrimp (293 ng/g), and shellfish (261 ng/g) samples. Among detected PAEs, di-isobutyl phthalate (DiBP), di-n-butyl phthalate (DBP), and di-ethylhexyl phthalate (DEHP) were the predominant PAEs, and they collectively accounted for 84-97% of the ∑PAEs concentrations in all samples. The estimated daily intakes of DiBP, DBP, and DEHP were more than one order of magnitude higher than remaining PAEs. Calculated hazard quotient values of PAEs were all <0.1, suggesting non-cancer risks for the general population through the consumption of marine organisms. Overall, for the first time, this study systematically examined the occurrence of multiple PAEs in four types of marine organisms from Hangzhou Bay, China.
由于邻苯二甲酸酯（PAEs）在塑料制品制造中的广泛应用，它们在海洋环境中无处不在。然而，中国海洋生物中各种 PAEs 的存在情况尚未得到很好的描述。在这项研究中，从中国杭州湾采集了 341 个海洋生物样本（包括鱼类、虾、蟹和贝类），并分析了 16 种 PAEs。此外，还评估了成年人和儿童食用海洋生物所带来的人类 PAE 暴露风险。在总共采集的生物样本中检测到八种 PAEs，总 PAEs（∑PAEs）浓度范围为 64 至 2840 ng/g（平均值为 238 ng/g）。蟹（平均 811 ng/g）样本的∑PAEs 平均浓度最高，其次是鱼类（465 ng/g）、虾（293 ng/g）和贝类（261 ng/g）样本。在所检测到的 PAEs 中，邻苯二甲酸二异丁酯（DiBP）、邻苯二甲酸二丁酯（DBP）和邻苯二甲酸二（2-乙基己基）酯（DEHP）是主要的 PAEs，它们共同占所有样本中∑PAEs 浓度的 84-97%。DiBP、DBP 和 DEHP 的估计每日摄入量比其余 PAEs 高出一个数量级以上。PAEs 的计算危害商值均<0.1，表明通过食用海洋生物，普通人群面临的非癌症风险较低。总体而言，这项研究首次系统地研究了中国杭州湾四种海洋生物中多种 PAEs 的存在情况。
