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水分别为50μg·L^(-1)、0.53μg·L^(-1)、0.017μg·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668.3mg·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。
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 PNECwaterof 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 PNECsedimentof 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 PNECsoilof PBDEs（tetrabromobiphenyl ether, pentabromodiphenyl ether, octabromobiphenyl ether, decabromobiphenyl ether） in soil were 668.3 mg·kg^（-1）wt, 0.38 mg·kg^（-1）dw, 147mg·kg^（-1）dw, 98 mg·kg^（-1）dw, respetively. The PNECoralof 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.
出处
《生态毒理学报》
CAS
CSCD
北大核心
2016年第2期609-619,共11页
Asian Journal of Ecotoxicology
基金
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)
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
PBDEs
the predicted no-effect concentration（PNEC）
freshwater
sediment
soil
native species
