A source area model incorporating simplified atmospheric dispersion and advection at fine scale for population air pollutant exposure assessment
A source area model incorporating simplified atmospheric dispersion and advection at fine scale for population air pollutant exposure assessment
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DOI：
10.1016/j.atmosenv.2007.12.021
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发表时间：
2008-03-01
影响因子：
5
通讯作者：
Rucker, M.
中科院分区：
文献类型：
--
作者：
Ainslie, B.;Steyn, D. G.;Rucker, M.
本文提出了一个估算居民区尺度空气污染物暴露量的源-面模型。该模型明确占一阶的影响，大气扩散的排放物表面浓度。该模型用于产生浓度表面在高的空间和时间分辨率，并校准使用测量从一个固定的监测网络和评估对测量从两个密集的测量活动。源区模型与忽略气象扩散的固定缓冲区模型进行了比较。源区模型捕捉风速，风向和稳定性的影响，对排放的扩散和平流，从而实现了适度的改进性能的固定缓冲区模型。该模型是有用的，以确定个人暴露和健康影响的本地排放。(c)2007爱思唯尔有限公司保留所有权利。
A source-area model for estimating population exposure to air pollutants at the scale of a neighborhood is developed. The model explicitly accounts for the first-order influence of atmospheric dispersion of emissions on surface concentrations. The model is used to produce concentration surfaces at high spatial and temporal resolution, and is calibrated using measurements from a fixed monitoring network and evaluated against measurements from two intensive measurement campaigns. The source area model is compared against a fixed buffer model that ignores meteorological dispersion. The source area model captures the influence of wind speed, wind direction and stability on the dispersion and advection of emissions, and thereby achieves modest improvement of performance over the fixed buffer model. The model is useful for the determination of personal exposures and health effects to local emissions. (c) 2007 Elsevier Ltd. All rights reserved.