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首页> 外文期刊>Environmental Science & Technology >Vapor Intrusion Investigations and Decision-Making: A Critical Review
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Vapor Intrusion Investigations and Decision-Making: A Critical Review

机译：蒸气入侵调查和决策：批判性审查

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摘要

At sites impacted by volatile organic compounds (VOCs), vapor intrusion (Ⅵ) is the pathway with the greatest potential to result in actual human exposure. Since sites with Ⅵ were first widely publicized in late 1990s, the scientific understanding of Ⅵ has evolved considerably. The Ⅵ conceptual model has been extended beyond relatively simple scenarios to include nuances, such as biological and hydrogeological factors that may limit the potential for Ⅵ and alternative pathways, such as preferential pathways and direct building contact/infiltration that may enhance Ⅵ in some cases. Regulatory guidance documents typically recommend initial concentration- or distance-based screening to evaluate whether Ⅵ may be a concern, followed by a multiple-lines-of-evidence (MLE) investigation approach for sites that do not screen out. These recommendations for detailed evaluation of Ⅵ currently focus on monitoring of VOC concentrations in groundwater, soil gas, and indoor air and can be supplemented by other lines of evidence. In this Critical Review, we summarize key elements important to Ⅵ site characterization, provide the status and current understanding, and highlight data interpretation challenges, as well as innovative tools developed to help overcome the challenges. Although there have been significant advances in the understanding of Ⅵ in the past 20 years, limitations and knowledge gaps in screening, investigation methods, and modeling approaches still exist. Potential areas for further research include improved initial screening methods that account for the site-specific role of barriers, improved understanding of preferential pathways, and systematic study of buildings and infrastructure other than single-family residences.
机译：在受挥发性有机化合物（VOC）影响的地点，蒸气侵入（ⅵ）是导致实际人暴露的潜力最大的途径。由于与ⅵ的网站在20世纪90年代末期被广泛宣传，因此对ⅵ的科学了解已经大大进化。 ⅵ概念模型超出了相对简单的情景，包括细微差别，例如可能限制△和替代途径的潜力的生物学和水文地质因素，例如在某些情况下可能增强ⅵ的优先途径和直接建立接触/渗透。监管指导文件通常推荐初始集中或基于距离的筛查，以评估ⅵ是否可能是一个问题，然后是不筛选的网站的证据（MLE）调查方法。这些建议进行详细评估ⅵ目前专注于监测地下水，土壤气体和室内空气中的VOC浓度，并可以通过其他证据进行补充。在这一关键评论中，我们总结了对ⅵ站点特征的关键要素，提供状态和当前的理解，并突出数据解释挑战，以及为帮助克服挑战而开发的创新工具。虽然在过去的20年里，在ⅵ的理解方面存在显着进展，但仍然存在筛选，调查方法和建模方法中的限制和知识差距。进一步研究的潜在领域包括改进的初始筛查方法，该方法考虑了障碍的特定作用，改善了对优惠途径的理解，以及除单家族住宅以外的建筑物和基础设施的系统研究。

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  • 来源
    《Environmental Science & Technology》 |2020年第12期|7050-7069|共20页
  • 作者

    Jie Ma; Thomas McHugh; Lila Beckley; Matthew Lahvis; George DeVaull; Lin Jiang;

  • 作者单位

    State Key Laboratory of Heavy Oil Processing Beijing Key Lab of Oil & Gas Pollution Control China University of Petroleum-Beijing Beijing 102249 China;

    GSI Environmental Houston Texas 77098 United Stales;

    GSI Environmental Houston Texas 77098 United States;

    Shell Global Solutions (US) Inc. Houston Texas 77082 United States;

    Shell Global Solutions (US) Inc. Houston Texas 77082 United States;

    National Engineering Research Centre of Urban Environmental Pollution Control Beijing Municipal Research Institute of Environmental Protection Beijing 100037 China;

  • 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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