« Previous AbstractE-Beam Irradiation for Improving the Microbiological Quality of Smoked Duck Meat with Minimum Effects on Physicochemical Properties During Storage    Next Abstract"Distribution, source identification, and health risk of emerging organic contaminants in groundwater of Xiong'an New Area, Northern China" »

Sci Total Environ

Title:		"Current pollution status, spatial features, and health risks of legacy and emerging halogenated flame retardants in agricultural soils across China"
Author(s):		An Q; Aamir M; Mao S; Liu Y; Wang Y; Zheng P; Liu W;
Address:		"MOE Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China. Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China. MOE Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China. Electronic address: wliu@zju.edu.cn"
Journal Title:		Sci Total Environ
Year:		2022
Volume:		20210902
Issue:
Page Number:		150043 -
DOI:		10.1016/j.scitotenv.2021.150043
ISSN/ISBN:		1879-1026 (Electronic) 0048-9697 (Linking)
Abstract:		"Soil is a major reservoir and a secondary source of semi-volatile organic chemicals, while studies on the pollution status of halogenated flame retardants (HFRs) in agricultural soils are limited. In this study, a total of twenty-five chemicals including novel brominated flame retardants (NBFRs), polybrominated diphenyl ethers (PBDEs), and dechlorane plus (DPs) was analyzed in the agricultural soils across China to investigate the occurrence, spatial distribution, potential sources, influencing factors and their associated human health risks. The results showed that BDE-209 (125-130,183 pg/g, dry weight, d.w.) was the most abundant flame retardant of PBDEs, followed by decabromodiphenyl ethane (DBDPE) (9.27-22,864 pg/g, d.w.). Meanwhile, the DPs (anti-DP plus syn-DP) were in the range of ND-1229 pg/g (d.w.), and the range of f(anti) values (the concentration of anti-DP divided by the sum of the concentrations of two isomers) in this study greatly matched those of commercial products, suggesting the effect of proximity to the source region. The higher levels of HFRs were found in Eastern and Southern regions of China. Spatial distribution implied that e-waste recycling activities and plastic processing have shown more importance in releasing legacy flame retardants (FRs) into the environment than the manufacturing process, while all are important for novel FRs. Correlation analysis between influencing factors and HFRs indicated that the distribution of most pollutants was more affected by anthropogenic source factors than environmental factors. The results of the principal component analysis demonstrated that deca-BDE and its alternative products were the major contributors to the sources of HFRs pollution. Human health risks assessment via oral intake and dermal contact pathways presented that the selected pollutants posed a no-carcinogenic risk to children and adults. It is worth noting that supervision of the disposal process of the NBFRs should be strengthened in the future"
Keywords:		Child China Environmental Monitoring *Flame Retardants/analysis Halogenated Diphenyl Ethers/analysis Humans Soil *Volatile Organic Compounds Agricultural soil Halogenated flame retardants (HFRs) Health risks Influencing factors Spatial distribution;
Notes:		"MedlineAn, Qi Aamir, Muhammed Mao, Shuduan Liu, Yingxue Wang, Yanting Zheng, Ping Liu, Weiping eng Netherlands 2021/09/17 Sci Total Environ. 2022 Jan 10; 803:150043. doi: 10.1016/j.scitotenv.2021.150043. Epub 2021 Sep 2"