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首页> 外文期刊>Environmental Science & Technology >Estimating Emissions of Toxic Hydrocarbons from Natural Gas Production Sites in the Barnett Shale Region of Northern Texas
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Estimating Emissions of Toxic Hydrocarbons from Natural Gas Production Sites in the Barnett Shale Region of Northern Texas

机译：估算德克萨斯州北部巴尼特页岩地区天然气生产基地的有毒碳氢化合物排放量

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摘要

Oil and natural gas operations have continued to expand and move closer to densely populated areas, contributing to growing public concerns regarding exposure to hazardous air pollutants. During the Barnett Shale Coordinated Campaign in October, 2013, ground-based whole air samples collected downwind of oil and gas sites revealed enhancements in several potentially toxic volatile organic compounds (VOCs) when compared to background values. Molar emissions ratios relative to methane were determined for hexane, benzene, toluene, ethylbenzene, and xylerie (BTEX compounds). Using methane leak rates measured from the Picarro mobile flux plane (MFP) system and a Barnett Shale regional methane emissions inventory, the rates of emission of these toxic gases were calculated. Benzene emissions ranged between 51 ± 4 and 60 ± 4 kg h~(-1). Hexane, the most abundantly emitted pollutant, ranged from 642 ± 45 to 1070 ± 340 kg h~(-1). While observed hydrocarbon enhancements fall below federal workplace standards, results may indicate a link between emissions from oil and natural gas operations and concerns about exposure to hazardous air pollutants. The larger public health risks associated with the production and distribution of natural gas are of particular importance and warrant further investigation, particularly as the use of natural gas increases in the United States and internationally.
机译：石油和天然气业务不断扩大，并向人口稠密地区靠近，这促使公众越来越担心暴露于有害的空气污染物。在2013年10月的Barnett页岩协调运动期间，在油气场所顺风处采集的地面全空气样本显示，与背景值相比，几种潜在有毒的挥发性有机化合物（VOC）有所增强。确定了己烷，苯，甲苯，乙苯和xylerie（BTEX化合物）相对于甲烷的摩尔排放比。使用从Picarro移动通量平面（MFP）系统测量的甲烷泄漏率和Barnett页岩区域甲烷排放清单，计算出这些有毒气体的排放率。苯排放量介于51±4至60±4 kg h〜（-1）之间。己烷是排放最丰富的污染物，范围从642±45到1070±340 kg h〜（-1）。尽管观察到的碳氢化合物增加量低于联邦工作场所标准，但结果可能表明石油和天然气运营的排放与对有害空气污染物的暴露之间存在联系。与天然气生产和分配相关的更大的公共健康风险尤为重要，需要进一步调查，尤其是随着美国和国际上天然气使用量的增加。

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  • 来源
    《Environmental Science & Technology》 |2016年第19期|10756-10764|共9页
  • 作者

    Josette E. Marrero; Amy Townsend-Small; David R. Lyon; Tracy R. Tsai; Simone Meinardi; Donald R. Blake;

  • 作者单位

    NASA Ames Research Center, Moffett Field, California 94035, United States,NASA Ames Research Center, Atmospheric Science Branch, Mail Stop 245-5, Moffett Field, CA 94035;

    Departments of Geology and Geography, University of Cincinnati, Cincinnati, Ohio 45221, United States;

    Environmental Defense Fund, Austin, Texas 78701, United States;

    Picarro, Inc., Santa Clara, California 95054, United States;

    Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States;

    Department of Chemistry, University of California, Irvine, Irvine, California 92697, 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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