Environmental and individual PAH exposures near rural natural gas extraction.
Environmental and individual PAH exposures near rural natural gas extraction.
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DOI：
10.1016/j.envpol.2018.05.010
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发表时间：
2018-10
期刊：
影响因子：
--
通讯作者：
Anderson KA
中科院分区：
文献类型：
--
作者：
Paulik LB;Hobbie KA;Rohlman D;Smith BW;Scott RP;Kincl L;Haynes EN;Anderson KA
天然气开采（NGE）近年来在美国迅速发展。尽管令人担忧，但几乎没有关于NGE对空气质量或居住或工作在附近的人的个人暴露的影响的信息。最近的研究表明，NGE向空气中排放多环芳烃（PAHs）。本研究使用低密度聚乙烯被动采样器测量了活性（n=3）和拟建（n=2） NGE点附近空气中的多环芳烃浓度。在每个地点，两个同心圆的空气采样器被放置在活动或拟议的井台位置周围。使用硅胶腕带评估在采样点附近居住或工作的参与者（n=19）的个人多环芳烃暴露情况。所有样品均采用GC-MS/MS分析了62种多环芳烃，并使用荧光蒽/芘异构体比估计了点源。NGE活性位点空气中∑PAH显著高于对照组（Wilcoxon秩和检验，p < 0.01）。在活跃的NGE位点，空气中的多环芳烃也更具有成岩性（石油衍生）。这表明，在活跃的NGE站点的多环芳烃混合物可能受到这些站点的石油源直接排放的影响。具有活性NGE井的参与者腕带中的∑PAH也显著高于未具有活性NGE井的参与者（Wilcoxon秩和检验，p < 0.005）。参与者腕带中的∑PAH与离家或工作场所最近的空气中的∑PAH呈显著正相关（简单线性回归，p < 0.0001）。这些发现表明，在活跃的NGE井附近生活或工作可能会增加个人多环芳烃暴露。这项工作也支持硅胶腕带评估个人多环芳烃暴露的效用。在活跃的天然气开采井附近居住或工作可能会增加个人的多环芳烃暴露。
Natural gas extraction (NGE) has expanded rapidly in the United States in recent years. Despite concerns, there is little information about the effects of NGE on air quality or personal exposures of people living or working nearby. Recent research suggests NGE emits polycyclic aromatic hydrocarbons (PAHs) into air. This study used low-density polyethylene passive samplers to measure concentrations of PAHs in air near active (n=3) and proposed (n=2) NGE sites. At each site, two concentric rings of air samplers were placed around the active or proposed well pad location. Silicone wristbands were used to assess personal PAH exposures of participants (n=19) living or working near the sampling sites. All samples were analyzed for 62 PAHs using GC-MS/MS, and point sources were estimated using the fluoranthene/pyrene isomer ratio. ∑PAH was significantly higher in air at active NGE sites (Wilcoxon rank sum test, p < 0.01). PAHs in air were also more petrogenic (petroleum-derived) at active NGE sites. This suggests that PAH mixtures at active NGE sites may have been affected by direct emissions from petroleum sources at these sites. ∑PAH was also significantly higher in wristbands from participants who had active NGE wells on their properties than from participants who did not (Wilcoxon rank sum test, p < 0.005). There was a significant positive correlation between ∑PAH in participants’ wristbands and ∑PAH in air measured closest to participants’ homes or workplaces (simple linear regression, p < 0.0001). These findings suggest that living or working near an active NGE well may increase personal PAH exposure. This work also supports the utility of the silicone wristband to assess personal PAH exposure. Living or working near an active natural gas extraction well may increase an individual’s PAH exposure.
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影响因子：
4.3
作者：
Dixon HM;Scott RP;Holmes D;Calero L;Kincl LD;Waters KM;Camann DE;Calafat AM;Herbstman JB;Anderson KA
通讯作者：
Anderson KA
影响因子：
5.5
作者：
Bamberger, M.;Oswald, R. E.
通讯作者：
Oswald, R. E.
影响因子：
9.8
作者：
Bunch, A. G.;Perry, C. S.;Haws, L. C.
通讯作者：
Haws, L. C.
影响因子：
4.3
作者：
Colborn, Theo;Schultz, Kim;Kwiatkowski, Carol
通讯作者：
Kwiatkowski, Carol
影响因子：
3.7
作者：
Boyle, Meleah D.;Payne-Sturges, Devon C.;Sapkota, Amir
通讯作者：
Sapkota, Amir