首页|Temporal-spatial distribution and diastereoisomer pattern of hexabromocyclododecane in the vicinity of a chemical plant

Temporal-spatial distribution and diastereoisomer pattern of hexabromocyclododecane in the vicinity of a chemical plant

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Hexabromocyclododecane (HBCD) is an effective brominated flame-retardant additive,which is mainly produced in the coastal area of China.This study collected soil samples from a HBCD production plant and its surrounding area in Weifang,Shandong Province,China,and analyzed the temporal-spatial distribution of HBCD and its diastereoisomers in soil.The analysis results showed that the concentration of HBCD in soil near the plant was much higher than normal values,with an annual average concentration reaching 5405 ng/g.Soils 1,2 and 4 km away from the plant were also analyzed,showing that the concentration of HBCD in soil decreased accordingly with the distance from the pollution sources.In order to investigate the effect of the season on HBCD content,the soil samples were collected in all four seasons of the year 2017-2018.According to variations in the wind direction,the concentration of HBCD in soil was also changed.The distribution trend showed that the concentration of HBCD in soil in the downwind direction of the prevailing wind was higher than that in the upwind direction.In addition,this work analyzed the distribution of HBCD in vertical soil sections.It was found that the concentration of HBCD decreased with depth in the soil vertical profile.Finally,the various diastereoisomer patterns in the soil compartments were examined,finding that α-HBCD and γ-HBCD were the predominant diastereoisomers in the soil of the study area.

Hexabromocyclododecane (HBCD)Temporal-spatial distributionDiastereoisomersSeasonal variationSoil

Xinlei Wang、Ruirui Sun、Yuedong Chen、Xu Zhang、Zhaojie Cui

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School of Environmental Science and Engineering, Shandong University, Jinan 250100, China

Department of Plant and Microbial Biology, University of Zurich, Zurich 8008, Switzerland

authors sincerely appreciate the financial support received from the National Natural Science Foundation of Chinaand the Science and Technology Development Plan Projects of WeifangAuthors also grateful to all the anonymous referees for their constructive comments and suggestions

209770942014ZJ1055

2019

环境科学学报(英文版)
中科院生态环境研究中心

环境科学学报(英文版)

CSTPCDCSCDSCIEI
影响因子：0.862
ISSN：1001-0742
年,卷(期)：2019.82(8)
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