| Title: | Indoor polybrominated diphenyl ethers in urban China: An exposure and risk assessment based on settled dust from selected urban regions |
| Author(s): | Bu Z; Xu X; Xu Q; Mmereki D; Wang J; Cheng Z; Li K; Dong C; |
| Address: | "Department of Energy and Environmental System Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China. Hangzhou Architectural and Civil Engineering Design Institute Company Limited, Hangzhou 310020, China. Occupational Health Division, School of Public Health, University of the Witwatersrand, Parktown Education Campus, 2193 Johannesburg, South Africa. Institute of Urban Construction, Hangzhou Polytechnic, Hangzhou 311402, China. College of Architecture and Environment, Sichuan University, Chengdu 610065, China. Department of Energy and Environmental System Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China. Electronic address: congdong@zust.edu.cn" |
| DOI: | 10.1016/j.scitotenv.2020.136808 |
| ISSN/ISBN: | 1879-1026 (Electronic) 0048-9697 (Linking) |
| Abstract: | "In this study, measurements of seven typical polybrominated diphenyl ethers (PBDEs) in indoor settled dust were summarized in selected urban regions of China. BDE-209 was the most dominant congener in settled dust (1.4-101 mug/g), with a mean contribution of 95%. Indoor exposures to PBDEs were estimated via inhalation, dust ingestion, and dermal absorption. The average daily intake of SigmaPBDE was 4.9 to 19.1 ng/day/kg for all the population groups, with >80% of the total exposures from dust ingestion. Exposures in commuting environments (contributing 60%-80% of the total exposures) were higher than those in other microenvironments. The means of hazard indexes ranged from 1.66 x 10(-)(3) to 5.26 x 10(-)(3), which were mainly as a result of exposure to BDE-209, BDE-47, and BDE-99. The average lifetime cancer risks were from 0.03 x 10(-)(9) to 2.37 x 10(-)(9), which indicated the acceptable health risks resulting from indoor PBDE exposure for the Chinese population. The present study could provide valuable information that could be helpful for decision-makers, analysts and researchers to develop, implement and evaluate the effectiveness of interventions for the reduction of exposures to semi-volatile organic compounds (SVOCs) for large population groups in China" |
| Keywords: | Exposure Health risk Indoor Polybrominated diphenyl ethers (PBDEs) Settled dust Urban China; |
| Notes: | "PubMed-not-MEDLINEBu, Zhongming Xu, Xiaoxue Xu, Qi Mmereki, Daniel Wang, Jiahui Cheng, Zhu Li, Ke Dong, Cong eng Netherlands 2020/01/27 Sci Total Environ. 2020 Apr 20; 714:136808. doi: 10.1016/j.scitotenv.2020.136808. Epub 2020 Jan 20" |
