Preliminary assessment of UK human dietary and inhalation exposure to polybrominated diphenyl ethers
Preliminary assessment of UK human dietary and inhalation exposure to polybrominated diphenyl ethers
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DOI：
10.1021/es0301121
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发表时间：
2004-04-15
影响因子：
11.4
通讯作者：
Baker, R
中科院分区：
文献类型：
--
作者：
Harrad, S;Wijesekera, R;Baker, R
该研究报告了室外空气中溴化二苯醚47、99、100、153和154的浓度[中位值SigmaPBDE（溴化二苯醚总量47、99、100、153、和154）= 18猪m（-3）]在空气中从一系列的办公室和家庭室内微环境（SigmaPBDE中位数= 762皮克/米-3）以及素食和杂食的重复饮食样本（素食和杂食饮食的SigmaPBDE中位数分别为154和181皮克/克（-1）干重）。人体每日通过吸入接触SigmaPBDE的中位值为6.9纳克/人，通过饮食接触的中位值为90.5纳克/人，但这些途径的相对重要性因人而异。工作场所室内空气中浓度中位数较高（SigmaPBDE = 1082皮克/立方米）（SigmaPBDE = 128皮克米（-3））微环境中，同一办公楼内不同房间的空气中的浓度差异很大。多溴二苯醚浓度与电器和聚氨酯泡沫座椅的数量之间存在显著的正相关关系（p < 0.001）。杂食性饮食样本中Sigma PBDE和BDE 47和99的浓度显着高于纯素饮食样本（p < 0.1），这意味着虽然植物性食品的贡献相当大，但通过摄入动物性食品会发生更高的暴露。
This study reports concentrations of BDEs 47, 99, 100, 153, and 154 in outdoor air [median SigmaPBDE (sum of BDEs 47, 99, 100, 153, and 154) = 18 pig m(-3)] in air from a range of office and home indoor microenvironments (median SigmaPBDE = 762 pg m-3) and vegan and omnivorous duplicate diet samples (median SigmaPBDE = 154 and 181 pg g(-1) dry weight for vegan and omnivorous diets, respectively). Median daily human exposure to SigmaPBDE via inhalation is 6.9 ng/person and 90.5 ng/person via diet but the relative significance of these pathways may vary considerably between individuals. Median concentrations in indoor air were higher in workplace (SigmaPBDE = 1082 pg m-3) than in domestic (SigmaPBDE = 128 pg m(-3)) microenvironments, and substantial differences in concentrations in air from different rooms in the same office building were found. When data from the only mechanically ventilated room was excluded, a significant positive correlation (p < 0.001) was observed between PBDE concentrations and both the number of electrical appliances and polyurethane foam-containing chairs. Concentrations of Sigma PBDE and BDEs 47 and 99 were significantly higher (p < 0.1) in omnivorous diet samples than in vegan diet samples, implying that while plant-based foods contribute appreciably, higher exposure occurs via ingestion of animal-based comestibles.