Perfluoroalkyl chemicals in vacuum cleaner dust from 39 Wisconsin homes
Perfluoroalkyl chemicals in vacuum cleaner dust from 39 Wisconsin homes
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DOI：
10.1016/j.chemosphere.2012.03.082
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发表时间：
2012-08-01
期刊：
影响因子：
8.8
通讯作者：
Anderson, Henry
中科院分区：
文献类型：
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作者：
Knobeloch, Lynda;Imm, Pamela;Anderson, Henry
50 多年来，全氟烷基化学品 (PFC) 一直被用作各种消费品中的表面活性剂和防污剂，其持久性和毒性越来越受到人们的关注。在北美，人类接触这些化学物质基本上是普遍现象，研究人员将它们与各种健康问题联系起来，包括癌症发病率较高、发育和生殖问题以及胆固醇水平较高等。主要的暴露途径是摄入食物和水、通过手到嘴传播摄入灰尘。为了评估住宅暴露情况，威斯康星州卫生服务部测试了 39 个家庭的真空吸尘器内容物中的 16 种全氟烷基化学物质。在所有真空灰尘样本中都发现了 PFOS、PFOA、PFHxS、PFHpA 和 PFNA，八个家庭的灰尘中含有我们分析中包含的所有 16 种 PFC。最常检测到的化合物是全氟辛烷磺酸盐 (PFOS)、全氟己烷磺酸盐 (PFHxS) 和全氟辛酸 (PFOA)，它们合计占这些家庭灰尘中 PFC 残留总量的 70%。这些灰尘样本中 PFC 的总浓度范围为 70 至 2513 ng/g（中位数 280 ng/g）。我们的调查表明，这些化学物质可能是美国家庭中普遍存在的污染物。 (C) 2012 Elsevier Ltd. 保留所有权利。
Perfluoroalkyl chemicals (PFCs) have been used as surfactants and stain repellants in a variety of consumer products for more than 50 years and there is growing concern regarding their persistence and toxicity. Human exposure to these chemicals is essentially universal in North America and researchers have linked them to a variety of health problems ranging from higher rates of cancer, to developmental and reproductive problems, and higher cholesterol levels. Major exposure pathways are food and water ingestion, dust ingestion via hand to mouth transfer. In an effort to assess residential exposure, the Wisconsin Department of Health Services tested vacuum cleaner contents from thirty-nine homes for 16 perflouroalkyl chemicals. PFOS, PFOA, PFHxS, PFHpA and PFNA were found in all of the vacuum dust samples and dust from eight homes contained all 16 PFCs included in our analysis. The most commonly detected compounds were perfluorooctanesulfonate (PFOS), perfluorohexanesulfonate (PFHxS) and perfluorooctanoic acid (PFOA) which together made up 70% of the total PFC residues in dust from these homes. Summed PFC concentrations in these dust samples ranged from 70 to 2513 ng/g (median 280 ng/g). Our investigation suggests that these chemicals may be ubiquitous contaminants in US homes. (C) 2012 Elsevier Ltd. All rights reserved.