摘要
2009年1～2月,在广东省韶关、清远等11个地区采集了65个家庭室内飞尘样品,分析了其DBDPE和BDE209的残留状况,评估了室内飞尘所含十溴联苯醚(BDE209)及其替代物十溴二苯乙烷(DBDPE)对人体的暴露风险.结果表明,DBDPE和BDE209在所有样品中均可检出,检出范围分别为30.9～16 370、5.44～955 ng/g,均值分别为3 020、167 ng/g;采样家庭室内飞尘BDE209的含量处于较低水平,而DBDPE却处在较高水平;DBDPE残留量可能已超过BDE209.成人和儿童通过室内飞尘摄入的DBDPE平均日暴露量分别为0.72、14.5 ng/(kg.day),而BDE209则分别为0.80、0.040 ng/(kg.day),儿童DBDPE和BDE209的最高日暴露量分别达58.0、3.21 ng/(kg.day),显示儿童处于相对较高的DBDPE和BDE209暴露风险.
Deeabromodiphenyl ether （BDE209） and its substituted product, deeabromophenyl ethane （DBDPE） were measured in domestic indoor dust collected from eleven cities in Guangdong Province, including Shaoguan, Qingyuan, Heyuan and so on, to assess human exposure to BDE209 and DBDPE via indoor dust. The concentra- tions of DBDPE and BDE209 were 30.9 -16 370 and 5.44 -955 ng/g, with an mean value of 3 020 and 167 ng/g, the DBE209 level in the present study was at the low end, while DBDPE was at the high end; the ratios of DBPDE/BDE209 were between 1.70 to 194, indicating that DBDPE residue in Guangdong indoor dust has already surpassed that of BDE209. Average daily estimated intake of DBDPE via indoor dust was 0. 72 ng/（ kg · day） for adults and 14.5 ng/（kg · day） for young children, and the corresponding value for BDE209 was 0. 040ng/（kg · day） in adults and 0. 80 ng/（kg · day） in children; the maximum daily estimated intake of DBDPE and BDE209 for children was 58. 0 and 3.21 ng/（ kg · day）, about 20 fold of that for adults. The results suggested that DBDPE and BDE209 may pose higher health risk to children the adults via contaminations in indoor dust.
出处
《华南师范大学学报（自然科学版）》
CAS
北大核心
2012年第3期86-90,共5页
Journal of South China Normal University(Natural Science Edition)
基金
国家自然科学基金项目(41003050)
中国科学院广州地球化学研究所有机地球化学国家重点实验室项目(OGL-200904)
关键词
十溴二苯乙烷
十溴联苯醚
家庭室内飞尘
人体暴露
decabromodiphenyl ether
decabromophenyl ethane
domastic indoor dust
human exposure
