黑龙江省大气中多溴联苯醚的污染特征  

Air pollution characteristic of polybrominated diphenyl ethers in Heilongjiang province

作　　者：李一凡[1] 朱宁正[1] 刘丽艳[1] 齐虹[1] 马万里[1] 宋维薇[1] 李文龙 

机构地区：[1]哈尔滨工业大学市政环境工程学院 国际持久性有毒物质联合研究中心,哈尔滨150090

出　　处：《黑龙江大学自然科学学报》2014年第2期228-232,共5页Journal of Natural Science of Heilongjiang University

基　　金：中央高校基本科研业务费专项资金资助项目(HIT.NSRIF.2014095);国家自然科学基金青年基金资助项目(41101493)

摘　　要：为了研究黑龙江省大气中多溴联苯醚（PBDEs）的污染特征，在黑龙江省均匀布置了8个大气采样点，采用PUF被动采样器进行大气样品的采集，利用GC—MS对14种PBDEs进行了定性和定量分析。结果表明，黑龙江省大气中14种PBDEs（∑14 PBDEs）的总浓度范围为17．7～724Pg·m-3，中值和几何平均值分别为65．2和77．5Pg·m-3，其中BDE－209为大气中PBDEs的最主要组分，浓度范围为7．58～711Pg·m-3，占总浓度的87．6％。采用主成份分析对大气中PBDEs的来源进行了研究，发现黑龙江省大气中PBDEs主要来自于商用十溴联苯醚和商用五溴联苯醚。PBDEs的日暴露量计算结果显示，暴露量随年龄增加有减少的趋势（不考虑婴儿人群），小孩年龄组人群日暴露量最大，为5．89pg·k—bw-1·day-1。Air samples were collected at eight sampling points using PUF passive air samplers in Heilongjiang province to study pollution of polybrominated diphenyl ethers （PBDEs）. 14 PBDEs were analyzed by a GC -MS spectrometer. Concentrations of ∑14PBDEs were observed to be from 17.7 to 724 pg · m-3, with the median and geometric mean being 65.2 and 75.5 pg· m-3 , respectively. The dominate polluter was B DE - 209 （7.58 - 711 pg · m -3 ）, which was accounted for 87.6% of ∑ 14 PB- DEs. The principal component analysis was applied to source PBDEs in air. The results indicated that PBDEs in Heilongjiang province mainly originated from commercial Deca - BDEs and commercial Penta -BDEs. The results of estimated daily intake showed that human exposure to PBDEs decreased with age increasing. Children had the highest exposure to PBDEs, with a daily intake dose of 5.89 pg · kg - bw - 1 day - 1.

关 键 词：多溴联苯醚 污染 人体暴露 大气 黑龙江 

分 类 号：X831[环境科学与工程—环境工程]