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首页> 外文期刊>Environmental Science & Technology >Air is Still Contaminated 40 Years after the Michigan Chemical Plant Disaster in St. Louis, Michigan
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Air is Still Contaminated 40 Years after the Michigan Chemical Plant Disaster in St. Louis, Michigan

机译：密歇根州圣路易斯的密歇根化工厂灾难发生40年后，空气仍然受到污染

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摘要

The Michigan Chemical (also known as Velsicol Chemical) plant located in St. Louis, Michigan operated from 1936-1978. During this time, the plant manufactured polybrominated biphenyls (PBBs), hexabromo-benzene (HBB), 1,1,1-trichloro-2,2-bis(4-chlorophenyl) ethane (DDT), and tris(2,3-dibromopropyl) phosphate (TDBPP), among other products. Due to widespread PBB contamination of Michigan, the plant eventually became a Superfund site, and despite years of cleanup activities, many of the compounds can still be found in the local ecosystem. To investigate the current atmospheric levels and to determine their spatial distributions, we collected tree bark samples from around Michigan and measured the concentrations of these pollutants. For comparison, other organic pollutants, such as polybrominated diphenyl ethers (PBDEs) and organophosphate esters (OPEs), which were not manufactured at the Michigan Chemical plant, were also measured in the same tree bark samples. Our results show levels of PBBs, DDT, and HBB in tree bark collected within 10 km of the Velsicol Superfund site (43,477, and 108 ng/g lipid wgt., respectively) are 1-2 orders of magnitude higher than at sites located more than 10 km from the site (0.36,28, and 0.36 ng/g lipid wgt., respectively). Levels of PBDEs and OPEs did not depend on distance from St. Louis. This is the first study on the atmospheric distribution of these chemicals around the Superfund site.
机译：位于密歇根州圣路易斯的密歇根化学工厂（也称为Velsicol Chemical）从1936年至1978年运营。在此期间，该工厂生产了多溴联苯（PBB），六溴苯（HBB），1,1,1-三氯-2,2-双（4-氯苯基）乙烷（DDT）和三（2,3-磷酸二溴丙基）（TDBPP）等产品。由于密歇根州多溴联苯的广泛污染，该工厂最终成为超级基金所在地，尽管进行了多年的清理活动，但仍可以在当地生态系统中发现许多化合物。为了调查当前的大气水平并确定其空间分布，我们从密歇根州附近收集了树皮样本并测量了这些污染物的浓度。为了进行比较，在同一树皮样品中还测量了密歇根化工厂未生产的其他有机污染物，例如多溴二苯醚（PBDEs）和有机磷酸酯（OPEs）。我们的结果表明，在Velsicol超级基金站点10公里内收集的树皮中的PBB，DDT和HBB水平（分别为43477和108 ng / g脂质重量）比其他站点的树皮高1-2个数量级。距离站点10公里以内（分别为0.36,28和0.36 ng / g脂质重量）。 PBDEs和OPEs的水平并不取决于距圣路易斯的距离。这是关于Superfund站点周围这些化学物质在大气中分布的第一项研究。

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  • 来源
    《Environmental Science & Technology》 |2014年第19期|11154-11160|共7页
  • 作者

    Angela A. Peverly; Amina Salamova; Ronald A. Hites;

  • 作者单位

    School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana 47405, United States;

    School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana 47405, United States;

    School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana 47405, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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