School of Pharmacy, Taizhou Polytechnic College, Taizhou, 225300, Jiangsu, China; State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Resources Utilization and Protection, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China.
State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Resources Utilization and Protection, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China.
Environ Res. 2024 Jul 1;252(Pt 4):118915. doi: 10.1016/j.envres.2024.118915. Epub 2024 Apr 12.
Surface particulates collected from the workshop floors of three major e-waste recycling sites (Taizhou, Qingyuan, and Guiyu) in China were analyzed for tetrabromobisphenol A/S (TBBPA/S) and their derivatives to investigate the environmental pollution caused by e-waste recycling activities. Mean concentrations of total TBBPA/S analogs in surface particulates were 31,471-116,059 ng/g dry weight (dw). TBBPA, TBBPA-BGE, and TBBPA-BDBPE were the most frequently detected in particulates with average concentration ranges of 17,929-78,406, 5601-15,842, and 5929-21,383 ng/g dw, respectively. Meanwhile, TBBPA, TBBPA-BGE, and TBBPA-BDBPE were the most abundant TBBPA/S analogs, accounting for around 96% of the total. The composition profiles of TBBPA/S analogs differed significantly among three e-waste sites. Similarly, principal component analysis uncovered different pollution patterns among different sites. The discrepancy in the profiles of TBBPA/S analogs largely relied on the e-waste types recycled in different areas. E-waste recycling led to the release of TBBPA/S analogs, and TBBPA/S analogs produced differentiation during migration from source (surface particulates) to nearby soil. More researches are necessary to find a definite relationship between pollution status and e-waste types and study differentiation behavior of TBBPA/S analogs in migration and diffusion from source to environmental medium.
从中国三个主要电子废物回收场（台州、清远和贵屿）的车间地板上收集的表面颗粒物，分析了四溴双酚 A/S（TBBPA/S）及其衍生物，以调查电子废物回收活动造成的环境污染。表面颗粒物中总 TBBPA/S 类似物的平均浓度为 31471-116059ng/g 干重（dw）。TBBPA、TBBPA-BGE 和 TBBPA-BDBPE 是在颗粒物中最常被检测到的，其平均浓度范围分别为 17929-78406ng/g dw、5601-15842ng/g dw 和 5929-21383ng/g dw。同时，TBBPA、TBBPA-BGE 和 TBBPA-BDBPE 是 TBBPA/S 类似物中最丰富的，占总量的 96%左右。三种电子废物场之间 TBBPA/S 类似物的组成谱差异显著。同样，主成分分析揭示了不同地点之间的不同污染模式。TBBPA/S 类似物的分布差异在很大程度上取决于不同地区回收的电子废物类型。电子废物回收导致 TBBPA/S 类似物的释放，而 TBBPA/S 类似物在从源（表面颗粒物）到附近土壤的迁移过程中产生了分化。需要进行更多的研究，以确定污染状况与电子废物类型之间的明确关系，并研究 TBBPA/S 类似物在从源到环境介质的迁移和扩散过程中的分化行为。
