PBDEs in indoor dust in South-Central China: Characteristics and implications
PBDEs in indoor dust in South-Central China: Characteristics and implications
复制标题
中国中南部室内灰尘中的多溴联苯醚：特征和影响。
DOI：
10.1016/j.chemosphere.2009.09.061
复制
发表时间：
2010-01-01
期刊：
影响因子：
8.8
通讯作者：
Ye, Zhixiang
中科院分区：
文献类型：
--
作者：
Huang, Yumei;Chen, Laiguo;Ye, Zhixiang
随机采集了中国中南部76户人家、12间办公室、43个户外场所、两台电视和两台电脑的粉尘样本。对室内粉尘样品进行了多溴联苯醚(PBDEs)的浓度、同系物分布和可能来源的分析，并与室外粉尘的类似数据进行了比较。Sigma 10PBDEs的浓度(BDE28、47、66、85、99之和。室内粉尘为186.6-9654ngg(-1)，平均为2662ngg(-1)；办公室粉尘为1737-4408ngg(-1)，平均为3179ngg(-1)。三个不同城市的室内粉尘中多溴二苯醚的同系物谱无显著差异。室内粉尘、办公室粉尘和室外粉尘中的优势同系物为BDE209，分别占Sigma 10PBDEs的96.2%、99.0%和97.4%。与以前的研究不同，这项研究发现，除了通常占主导地位的同系物BDE47和99外，室内和室外粉尘中的BDE183与Sigma 9PBDEs(不包括BDE209)的比例都很高。在大多数对照样品中，室内粉尘中的Sigma 10-PBDEs浓度高于室外粉尘中的浓度。与电视和计算机粉尘中显著较高的Sigma 10PBDEs浓度相结合，室内使用的含多溴二苯醚产品，包括电视和计算机，是室内粉尘中多溴二苯醚的重要潜在排放源。还需要进一步的研究来详细说明中国室内粉尘中BDE183高水平的来源。(C)2009爱思唯尔有限公司。保留所有权利。
Dust samples were collected randomly from 76 houses, 12 offices, 43 outdoor sites, two televisions and two computers in South-Central China. The indoor dust samples were analyzed for the concentrations, congener profiles, and possible sources of polybrominated diphenyl ethers (PBDEs) and compared to similar data obtained for outdoor dusts. The concentrations of Sigma 10PBDEs (the sum of BDE28, 47, 66, 85, 99. 100, 153, 154, 183, and 209) were 186.6-9654 ng g(-1) (mean = 2662 ng g(-1)) and 1737-4408 ng g(-1) (mean = 3179 ng g(-1)) for house dust and office dust, respectively. No significant differences were found among the congener profiles of PBDEs in house dust from three different cities. The dominant congener in all dust samples was BDE209, accounting for an average of 96.2%,99.0% and 97.4% of Sigma 10PBDEs for house dust, office dust and outdoor dust, respectively. Unlike previous studies, this study found that BDE183 was present in high proportion to Sigma 9PBDEs (BDE209 excluded) in both indoor and outdoor dusts, in addition to the usually dominant congeners, BDE47 and 99. Sigma 10PBDEs concentrations in house dust were higher than those in outdoor dust for most comparison samples. Combined with the significantly higher Sigma 10PBDEs concentrations in television and computer dusts, PBDE-containing products used indoors, including televisions and computers, were important potential emission sources for PBDEs in indoor dusts. Further studies are required to detail the source of the high levels of BDE183 in Chinese indoor dusts. (C) 2009 Elsevier Ltd. All rights reserved.