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Analysis and Modeling of Airborne BTEX Concentrations from the Deepwater Horizon Oil Spill

机译：深水地平线溢油事故中机载BTEX浓度的分析和建模

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摘要

Concerns have been raised about whether the Deepwater Horizon oil spill cleanup workers experienced adverse health effects from exposure to airborne benzene, toluene, ethylbenzene, and xyiene (BTEX) which volatilized from surfaced oil Thus, we analyzed the nearly 20 000 BTEX measurements of breathing zone air samples of offshore cleanup workers taken during the six months following the incident (made publicly available by British Petroleum). The measurements indicate that 99% of the measurements taken prior to capping the well were 32-, 510-, 360-, and 77-fold lower than the U.S. Occupational Safety and Health Administration's Permissible Exposure Limits (PELs) for BTEX, respectively. BTEX measurements did not decrease appreciably during the three months after the well was capped. Moreover, the magnitudes of these data were similar to measurements from ships not involved in oil slick remediation, suggesting that the BTEX measurements were primarily due to engine exhaust rather than the oil slick. To supplement the data analysis, two modeling approaches were employed to estimate airborne BTEX concentrations under a variety of conditions (e.g., oil slick thickness, wind velocity). The modeling results corroborated that BTEX concentrations from the oil were well below PELs and that the oil was not the primary contributor to the measured BTEX.
机译：人们担心Deepwater Horizo​​n漏油清理工人是否会因暴露于表面油挥发的空气传播的苯，甲苯，乙苯和二甲苯（BTEX）而遭受不良健康影响，因此，我们分析了近2万次BTEX呼吸区域测量值事件发生后的六个月中采集的离岸清理工人的空气样本（由英国石油公司公开提供）。测量结果表明，在封盖井口之前进行的测量中，有99％的测量值分别低于美国职业安全与健康管理局（US职业安全和健康管理局）的BTEX允许接触限值（PEL）。在封堵井后的三个月内，BTEX的测量值没有明显下降。此外，这些数据的大小与不参与浮油修复的船舶的测量结果相似，这表明BTEX的测量主要是由于发动机排气而不是浮油。为了补充数据分析，采用了两种建模方法来估算各种条件下（例如浮油厚度，风速）的机载BTEX浓度。建模结果证实了该油中的BTEX浓度远低于PEL，并且该油不是所测BTEX的主要成分。

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  • 来源
    《Environmental Science & Technology》 |2011年第17期|p.7372-7379|共8页
  • 作者

    Heather J. Avens; Ken M. Unice; Jennifer Sahmel; Sherilyn A.Gross; James J. Keenan; Dennis J. Paustenbach;

  • 作者单位

    ChemRisk LLC, 4840 Pearl East Circle, Suite 300 West, Boulder, Colorado 80301, United States;

    ChemRisk LLC, 20 Stanwix Street, Suite 505, Pittsburgh, Pennsylvania 15222, United States;

    ChemRisk LLC, 4840 Pearl East Circle, Suite 300 West, Boulder, Colorado 80301, United States;

    ChemRisk LLC, 4840 Pearl East Circle, Suite 300 West, Boulder, Colorado 80301, United States;

    ChemRisk LLC, 101 Second Street, Suite 700, San Francisco, California 94105, United States;

    ChemRisk LLC, 101 Second Street, Suite 700, San Francisco, California 94105, 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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  • 正文语种 eng
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