Gevao Bondi, Al-Bahloul Majed, Al-Ghadban Abdul Nabi, Al-Omair Ali, Ali Lulwa, Zafar Jamal, Helaleh Murad
Department of Environmental Science, Kuwait Institute for Scientific Research, P.O. Box 24885, Safat 13109, Kuwait.
Chemosphere. 2006 Jul;64(4):603-8. doi: 10.1016/j.chemosphere.2005.11.055. Epub 2006 Jan 6.
This study reports concentrations of polybrominated diphenyl ethers (PBDEs) in dust samples collected from 17 homes in Kuwait. PBDEs were measured in all homes investigated with mean summation operatorPBDEs concentration ranging from 1 to 393 ng g(-1), with a geometric mean of 76 ng g(-1). The dominant congener in all samples was BDE 209 constituting ca. 85% of the summationPBDEs followed by BDE 99 (5%), BDE 47 (4.5%), and BDE 183 (2%). The congener mixture in dust is dominated by those in deca and penta formulations. Using the measured concentrations and estimates of dust ingestion rates for children and adults, estimated human non-dietary exposure based on mean PBDE levels were 14.8 and 1.5 ng day(-1) for children and adults, respectively. The 10-fold difference in exposure estimates between children and adults in this study supports previous reports that children are at greater risk from pollutants that accumulate indoors. The ubiquitous distribution of these chemicals as noted in this study highlights the fact that we are continuously exposed to low doses of chemicals in the indoor environment.
本研究报告了从科威特17户家庭采集的灰尘样本中多溴二苯醚（PBDEs）的浓度。在所调查的所有家庭中均检测到了PBDEs，其平均总PBDEs浓度范围为1至393 ng g(-1)，几何平均值为76 ng g(-1)。所有样本中占主导地位的同系物是BDE 209，约占总PBDEs的85%，其次是BDE 99（5%）、BDE 47（4.5%）和BDE 183（2%）。灰尘中的同系物混合物以十溴和五溴配方中的同系物为主。利用测得的浓度以及儿童和成人的灰尘摄入量估计值，基于平均PBDE水平估算的人类非饮食暴露量，儿童和成人分别为14.8和1.5 ng day(-1)。本研究中儿童和成人暴露量估计值相差10倍，这支持了之前的报告，即儿童面临室内累积污染物的风险更大。本研究中所指出的这些化学物质无处不在的分布情况凸显了这样一个事实，即我们在室内环境中持续接触低剂量的化学物质。
