Levels, Distribution and Ecological Risk Assessment of PBDEs in Soils and Plants Around the Engineering Plastics Factory.

IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Bulletin of Environmental Contamination and Toxicology Pub Date : 2024-05-11 DOI:10.1007/s00128-024-03891-0
Jing Xu, Feng Ge, Jia Yu, Juying Li, Yezhi Dou, Didi Shan, Xiaoyu Cai, Deyang Kong
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Abstract

This study systematically investigated the pollution levels and migration trends of PBDEs in soils and plants around engineering plastics factory, and identified the ecological risks of PBDEs in the environment around typical pollution sources.The results showed that 13 kinds of PBDEs were widely detected in the surrounding areas, and the concentration level was higher than the general environmental pollution level. The total PBDE concentrations (∑13PBDEs) in soils ranged from 14.6 to 278.4 ng/g dry weight (dw), and in plants ranged from 11.5 to 176 ng/g dw. Both soil and plant samples showed that BDE-209 was the most important congener, the pollution level in soil and plant was similar, and the composition of PBDEs congener was similar. In the soil column (50 cm), the radial migration of PBDEs was mainly concentrated in the 0-30 cm section. Except for BDE-66, which was mainly located in the 20-30 cm soil layer, the concentration of PBDEs was the highest in the 0-10 cm region. Furthermore, the environmental risks of PBDEs in soil and plants were evaluated by hazard quotient method, and the HQ values were all < 1, which did not exhibit any ecological risk. The evaluation results also showed that the ecological risk of PBDEs in soil was higher than that of plants, especially penta-BDE, which should be paid more attention.

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工程塑料厂周围土壤和植物中多溴联苯醚的含量、分布和生态风险评估。
本研究系统调查了工程塑料厂周围土壤和植物中多溴联苯醚的污染水平和迁移趋势,识别了典型污染源周围环境中多溴联苯醚的生态风险。结果表明,工程塑料厂周围环境中广泛检测到13种多溴联苯醚,且浓度水平高于一般环境污染水平。土壤中的多溴联苯醚总浓度(∑13PBDEs)介于 14.6 至 278.4 纳克/克干重之间,植物中的多溴联苯醚总浓度(∑13PBDEs)介于 11.5 至 176 纳克/克干重之间。土壤和植物样品都表明,BDE-209 是最重要的同系物,土壤和植物中的污染程度相似,多溴联苯醚同系物的组成也相似。在土壤柱(50 cm)中,多溴联苯醚的径向迁移主要集中在 0-30 cm 的部分。除 BDE-66 主要位于 20-30 厘米土层外,多溴联苯醚在 0-10 厘米区域的浓度最高。此外,多溴联苯醚在土壤和植物中的环境风险采用危害商法进行评估,其 HQ 值均为
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来源期刊
CiteScore
5.60
自引率
3.70%
发文量
230
审稿时长
1.7 months
期刊介绍: The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.
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