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首页> 外文期刊>Environmental Science & Technology >Screening Chemicals for the Potential to be Persistent Organic Pollutants: A Case Study of Arctic Contaminants
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Screening Chemicals for the Potential to be Persistent Organic Pollutants: A Case Study of Arctic Contaminants

机译：筛选潜在的持久性有机污染物的化学物质：北极污染物的案例研究

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摘要

A large and ever-increasing number of chemicals are used in commerce, and researchers and regulators have struggled to ascertain that these chemicals do not threaten human health or cause environmental or ecological damage. The presence of persistent organic pollutants (POPs) in remote environments such as the Arctic is of special concern and has international regulatory implications. Responding to the need for a way to identify chemicals of high concern, a methodology has been developed which compares experimentally measured properties, or values predicted from chemical structure alone, to a set of screening criteria. These criteria include partitioning properties that allow for accumulation in the physical Arctic environment and in the Arctic human food chain, and resistance to atmospheric oxidation. Atthe same time we quantify the extent of structural resemblance to a group of known Arctic contaminants. Comparison of the substances that are identified by a mechanistic description of the processes that lead to Arctic contamination with those substances that are structurally similar to known Arctic contaminants reveals the strengths and limitations of either approach. Within a data set of more than 100,000 distinct industrial chemicals, the methodology identifies 120 high production volume chemicals which are structurally similar to known Arctic contaminants and/ or have partitioning properties that suggest they are potential Arctic contaminants.
机译：商业中使用大量且不断增加的化学物质，研究人员和监管机构一直在努力确定这些化学物质不会威胁人类健康或造成环境或生态破坏。北极等偏远环境中持久性有机污染物（POPs）的存在引起特别关注，并具有国际监管意义。响应于对鉴定高度关注的化学物质的方法的需求，已经开发了一种方法，该方法将实验测量的性质或仅根据化学结构预测的值与一组筛选标准进行比较。这些标准包括可在北极物理环境和北极人类食物链中积累的分配特性，以及对大气氧化的抵抗力。同时，我们量化了与一组已知北极污染物的结构相似程度。通过对导致北极污染的过程的机械描述与结构上与已知北极污染物相似的那些物质进行比较，可以比较出每种方法的优势和局限性。在超过100,000种不同的工业化学品的数据集中，该方法确定了120种高产量化学品，这些化学品在结构上与已知的北极污染物类似，并且/或者具有表明它们是潜在的北极污染物的分区特性。

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  • 来源
    《Environmental Science & Technology》 |2008年第14期|5202-5209|共8页
  • 作者

    TREVOR N. BROWN; FRANK WANIA;

  • 作者单位
  • 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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  • 正文语种 eng
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