行政办公室内PBDEs污染特征及人体暴露量  

Pollution characteristics and human exposure of PBDEs in offices

作　　者：金漫彤[1] 郑艳霞[1] 胡张璇 沈学优[2,3] 金赞芳[1] 

机构地区：[1]浙江工业大学生物与环境工程学院,浙江杭州310014 [2]浙江大学环境与资源学院,浙江杭州310058 [3]浙江大学浙江省有机污染过程与控制重点实验室,浙江杭州310058

出　　处：《中国环境科学》2015年第10期3142-3149,共8页China Environmental Science

基　　金：国家高技术研究发展计划(2010AA064902)

摘　　要：为研究普通行政办公场所内多溴联苯醚（PBDEs）的污染现状、同类物分布特征及办公人群吸入暴露量,于2013年3月～8月期间在杭州市行政办公场所采集20个空气样品,用GC-ECD分析样品中14种PBDEs同类物.结果发现：杭州市办公场所空气中PBDEs总平均浓度达9.57×102pg/m3,与欧洲国家相比处于较高污染水平,其中BDE-209是主要污染成分,占总含量的57.4%,说明杭州市办公场所PBDEs的主要工业品来源是十溴联苯醚.与家庭住宅空气样品对照发现,办公场所PBDEs平均浓度是家庭住宅的1.26倍,并且这一浓度差异主要体现在BDE-209单体上.办公场所各采样点同类物气固相对百分含量在50.0%左右,说明空气中PBDEs一半以气态形式存在,一半则吸附在空气颗粒物中,这可能是PBDEs气固分配还未平衡所致.此外,杭州市普通行政办公人群BDE-99的总摄入量为2.03×102pg/（kg？d）,比国际标准BDE-99每日允许摄入量低21.7%.In order to evaluate the pollution status, congener distribution, human exposure of polybrominated diphenyl ethers（PBDEs） at administrative places, twenty air samples were collected from administrative offices in Hangzhou from March to August in 2013. Fourteen congeners were detected using GC-ECD. Results showed that： the average concentration of PBDEs at the sampled offices were 9.57×102pg/m3. Compared with European countries, the pollution level of Hangzhou administrative sites is higher, BDE-209 was the predominant congener, which accounted for about 57.4% of the total concentration. This indictes that Deca-bromodiphenyl is the major industrial source. The average concentration of PBDEs in administrative offices was 1.26 times of that in residential housings, and this difference was mainly reflected in BDE-209. The relative percentage of PBDEs in gas-solid phases was 50.0%（i.e., half of the PBDEs existed in gaseous form, and the other half was adsorbed on particulates）, which may be caused by unbalanced distribution of PBDEs. In addition, the total intake of BDE-99 was 2.03×102pg/（kg.d） for the administrative staff in Hangzhou, which was 21.7% lower than the daily allowable intake proposed by international standards.

关 键 词：行政办公室 多溴联苯醚 污染现状 分布特征 气固分配 暴露水平 

分 类 号：X131.1[环境科学与工程—环境科学]