Neighborhood-Scale Spatial Models of Diesel Exhaust Concentration Profile Using 1-Nitropyrene and Other Nitroarenes.
Neighborhood-Scale Spatial Models of Diesel Exhaust Concentration Profile Using 1-Nitropyrene and Other Nitroarenes.
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DOI：
10.1021/acs.est.5b03639
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发表时间：
2015-11-17
影响因子：
11.4
通讯作者：
Magzamen, Sheryl
中科院分区：
文献类型：
--
作者：
Schulte, Jill K.;Fox, Julie R.;Own, Assaf P.;Larson, Timothy V.;Simpson, Christopher D.;Paulsen, Michael;Beaudet, Nancy;Kaufman, Joel D.;Magzamen, Sheryl
随着越来越多的证据表明柴油机尾气暴露对人类健康构成明显的风险，对柴油机尾气污染物精细模型的需求正在增长。我们模拟了几种硝化多环芳烃（NPAH）的空间分布，以确定在华盛顿州的两个西雅图的柴油机排气污染的细尺度梯度。我们的建模方法融合了土地利用回归，气象扩散建模，污染物监测从固定和移动的平台。我们应用这些建模技术的浓度1-硝基芘（1-NP），一个高度具体的柴油机废气标记，在附近的规模。我们开发了二次有机气溶胶中存在的两种额外的硝基芳烃模型：2-硝基芘和2-硝基荧蒽。夏季预测的1-NP，包括距离铁路，卡车排放量，和移动的黑碳测量，柴油来源比其他NPAH的预测更大的特异性。冬季采样结果没有产生稳定的模型，可能是由于区域混合污染物在湍流天气条件。夏季1-NP模型的R2为0.87，交叉验证R2为0.73。高密度采样和混合建模的合成是成功的预测柴油机排气污染在一个非常精细的规模和确定明确的梯度在城市街区内的NPAH浓度。
With emerging evidence that diesel exhaust exposure poses distinct risks to human health, the need for fine-scale models of diesel exhaust pollutants is growing. We modeled the spatial distribution of several nitrated polycyclic aromatic hydrocarbons (NPAHs) to identify fine-scale gradients in diesel exhaust pollution in two Seattle, WA neighborhoods. Our modeling approach fused land-use regression, meteorological dispersion modeling, and pollutant monitoring from both fixed and mobile platforms. We applied these modeling techniques to concentrations of 1-nitropyrene (1-NP), a highly specific diesel exhaust marker, at the neighborhood scale. We developed models of two additional nitroarenes present in secondary organic aerosol: 2-nitro-pyrene and 2-nitrofluoranthene. Summer predictors of 1-NP, including distance to railroad, truck emissions, and mobile black carbon measurements, showed a greater specificity to diesel sources than predictors of other NPAHs. Winter sampling results did not yield stable models, likely due to regional mixing of pollutants in turbulent weather conditions. The model of summer 1-NP had an R2 of 0.87 and cross-validated R2 of 0.73. The synthesis of high-density sampling and hybrid modeling was successful in predicting diesel exhaust pollution at a very fine scale and identifying clear gradients in NPAH concentrations within urban neighborhoods.
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影响因子：
11.4
作者：
Henderson, Sarah B.;Beckerman, Bernardo;Brauer, Michael
通讯作者：
Brauer, Michael
DOI：
10.1038/jes.2013.1
发表时间：
2013-05-01
影响因子：
4.5
作者：
Johnson, Markey;MacNeill, Morgan;Wheeler, Amanda
通讯作者：
Wheeler, Amanda
影响因子：
9.8
作者：
Gonzales, M;Qualls, C;Neas, L
通讯作者：
Neas, L
卡车行业工人的肺癌和车辆排气。
影响因子：
10.4
作者：
Garshick, Eric;Laden, Francine;Hart, Jaime E.;Rosner, Bernard;Davis, Mary E.;Eisen, Ellen A.;Smith, Thomas J.
通讯作者：
Smith, Thomas J.
DOI：
10.1016/0957-1272(92)90013-i
发表时间：
1992-09-01
期刊：
ATMOSPHERIC ENVIRONMENT PART B-URBAN ATMOSPHERE
影响因子：
--
作者：
BENSON, PE
通讯作者：
BENSON, PE