غلظت بی فنیل های پلی کلره در هوای داخل/دی فنیل اتر پلی برمه در هوای داخل و گردوخاک داخل ساختمانها در بیرمینگهام انگلستان: مواجهه انسانی

عنوان انگليسی

Concentrations of Polychlorinated Biphenyls in Indoor Air and Polybrominated Diphenyl Ethers in Indoor Air and Dust in Birmingham, United Kingdom: Implications for Human Exposure

خلاصه انگلیسی

Polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) were measured in air (using PUF disk passive samplers) in 31 homes, 33 offices, 25 cars, and 3 public microenvironments. Average concentrations of ªBDE (273 pg m-3) and ªPCB (8920 pg m-3) were an order of magnitude higher than those previously reported for outdoor air. Cars were the most contaminated microenvironment for ªBDE (average ) 709 pg m-3), but the least for ªPCB (average ) 1391 pg m-3). Comparison with data from a previous spatially consistent study, revealed no significant decline in concentrations of ªPCB in indoor air since 1997- 98. Concentrations in indoor dust from 8 homes were on average 215.2 ng ªBDE g-1, slightly higher than other European dust samples, but twenty times lower than Canadian samples. Inhalation makes an important contribution (between 4.2 and 63% for adults) to overall UK exposure to ªPCB. For ªBDE, dust ingestion makes a significant buts in contrast to Canadasa not overwhelming contribution (up to 37% for adults, and 69% for toddlers). Comparison of UK and Canadian estimates of absolute exposure to ªBDE suggest that differences in dust contamination are the likely cause of higher PBDE body burdens in North Americans compared to Europeans.

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