Since Stockholm Convention listed polybrominated diphenyl ethers (PBDEs) as persistent organic pollutants and banned their addition, alternative halogen flame retardants (AHFRs) have been substituted for PBDEs. This study systematically investigates the change trends of PBDEs and AHFRs from typical e-waste plastics and dust, as well as clarifying human exposure risks of PBDEs in formal and informal e-waste recycling enterprises, repair store and residential building. The results show that the PBDEs levels in five typical types of e-waste vary in the range of 1.08 × 10⁻³-30.8 μg/g, meeting the requirements of RoHS regulation. Compared with the residential buildings (1.49–1.68 μg/g), PBDEs in the dust from the formal and informal e-waste recycling enterprises are much higher, ranging from 4.70 to 536 μg/g. BDE-209 is the main congener in most e-waste plastic and dust samples. Meanwhile, AHFRs have become the important composition (3.5–61.5%) in e-waste plastics, while its contribution is lower in dust, implying the higher enrichment efficiency of PBDEs. For PBDEs exposure, the dust intake risk of PBDEs is much higher than skin contact for the workers, and the highest hazard quotient (HQ) value (1.40 × 10⁻¹) and cancer risk (CR) value (1.21 × 10⁻⁷) both imply safe exposure levels.

由于斯德哥尔摩公约将多溴二苯醚 (PBDEs) 列为持久性有机污染物并禁止添加，因此替代卤素阻燃剂 (AHFRs) 已取代 PBDEs。本研究系统调查了典型电子垃圾塑料和灰尘中 PBDEs 和 AHFRs 的变化趋势，阐明了正式和非正式电子垃圾回收企业、维修店和住宅建筑中 PBDEs 的人体暴露风险。结果表明，五种典型电子垃圾中的PBDEs含量在1.08×10 ^{-3范围内变化。}-30.8 μg/g，满足RoHS法规要求。与住宅建筑（1.49-1.68 μg/g）相比，正规和非正规电子垃圾回收企业粉尘中的PBDEs要高得多，范围为4.70-536 μg/g。BDE-209 是大多数电子垃圾塑料和灰尘样品中的主要同源物。同时，AHFRs 已成为电子垃圾塑料中的重要成分（3.5-61.5%），而其在粉尘中的贡献较低，这意味着 PBDEs 的富集效率更高。对于 PBDEs 暴露，工人吸入 PBDEs 粉尘的风险远高于皮肤接触，最高危险商 (HQ) 值 (1.40 × 10 ^-1 ) 和癌症风险 (CR) 值 (1.21 × 10 ^-7 )两者都意味着安全的暴露水平。