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基于我国物种毒性数据的多溴联苯醚预测无效应浓度分析

本站小编 Free考研考试/2021-12-30

曹莹1,
朱岩2,
张亚辉1,,,
李霁1,
王飞飞2
1. 中国环境科学研究院 环境基准与风险评估国家重点实验室 国家环境保护化学品生态效应与风险评估重点实验室, 北京 100012;
2. 桂林理工大学环境科学与工程学院, 桂林 541004
作者简介: 曹莹(1983-),女,工程师,研究方向为环境生态风险评估,E-mail:caoyingyeah@sina.com.
通讯作者: 张亚辉,zhangyahui@craes.org.cn ;
基金项目: 国家水体污染控制与治理科技重大专项(2012ZX07501003)
科技基础性专项(2014FY120606)


中图分类号: X171.5


Analysis of Predicted No-effect Concentrations for Polybrominated Diphenyl Ethers (PBDEs) Based on the Toxicity Data of Species in China

Cao Ying1,
Zhu Yan2,
Zhang Yahui1,,,
Li Ji1,
Wang Feifei2
1. State Key Laboratory for Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effects and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Science, Beijing 100012, China;
2. College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Corresponding author: Zhang Yahui,zhangyahui@craes.org.cn ;

CLC number: X171.5

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摘要:采用多溴联苯醚(PBDEs)对我国广泛分布生物物种的生态毒性数据,根据欧盟现有化学物质风险评价技术指导文件,对不同环境介质中PBDEs预测无效应浓度(PNEC)进行了推导。结果表明:我国淡水环境PBDEs (四溴、五溴、八溴)的PNEC分别为50 μg·L-1、0.53 μg·L-1、0.017 μg·L-1。沉积物环境PBDEs (四溴、五溴、八溴和十溴)的PNEC沉积物分别为823.35 mg·kg-1 wt、1.55 mg·kg-1 dw、12.72 mg·kg-1 dw、>38.41 mg·kg-1 dw。土壤环境PBDEs (四溴、五溴、八溴和十溴)的PNEC土壤分别为668.3 mg·kg-1 wt、0.38 mg·kg-1 dw、147 mg·kg-1 dw、>98 mg·kg-1 dw。次生毒性PBDEs (五溴、八溴和十溴)的PNEC经口分别为0.3~0.7 mg·kg-1、0.56 mg·kg-1、2 500 mg·kg-1。该数值期为我国PBDEs的环境风险评价提供科学基础。
关键词: 多溴联苯醚/
预测无效应浓度/
淡水/
沉积物/
土壤/
本土物种

Abstract:According to the EU technical guidance document on risk assesssment, the predicted no-effect concentration (PNEC) values of four kinds of polybrominated diphenyl ethers (PBDEs) in the environmental mediums were derived with the ecotoxicity data of our widely distributed species in China. The results showed that the PNECwater of PBDEs (tetrabromobiphenyl ether, pentabromodiphenyl ether, octabromobiphenyl ether) in the freshwater were 50 μg·L-1, 0.53 μg·L-1, 0.017 μg·L-1, respetively. The PNECsediment of PBDEs (tetrabromobiphenyl ether, pentabromodiphenyl ether, octabromobiphenyl ether, decabromobiphenyl ether) in the sediment were 823.35 mg·kg-1 wt, 1.55 mg·kg-1 dw, 12.72 mg·kg-1 dw, >38.41 mg·kg-1 dw, respetively. The PNECsoil of PBDEs (tetrabromobiphenyl ether, pentabromodiphenyl ether, octabromobiphenyl ether, decabromobiphenyl ether) in soil were 668.3 mg·kg-1 wt, 0.38 mg·kg-1 dw, 147 mg·kg-1 dw, >98 mg·kg-1 dw, respetively. The PNECoral of PBDEs (pentabromodiphenyl ether, octabromobiphenyl ether, decabromobiphenyl ether) of secondary poison were 0.3~0.7 mg·kg-1, 0.56 mg·kg-1, 2 500 mg·kg-1, respetively. These values could provide the scientific basis for the environmental risk assessment of PBDEs in China.
Key words:PBDEs/
the predicted no-effect concentration (PNEC)/
freshwater/
sediment/
soil/
native species.

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