Funk T H, Chinkin L R, Roberts P T, Saeger M, Mulligan S, Páramo Figueroa V H, Yarbrough J
Sonoma Technology, Inc., Petaluma, CA 94954-1169, USA.
Sci Total Environ. 2001 Aug 10;276(1-3):135-51. doi: 10.1016/s0048-9697(01)00776-8.
Emission inventories of ozone precursors are routinely used as input to comprehensive photochemical air quality models. Photochemical model performance and the development of effective control strategies rely on the accuracy and representativeness of an underlying emission inventory. This paper describes the tasks undertaken to compile and evaluate an ozone precursor emission inventory for the El Paso/Ciudad Juárez/Southern Doña Ana region. Point, area and mobile source emission data were obtained from local government agencies and were spatially and temporally allocated to a gridded domain using region-specific demographic and land-cover information. The inventory was then processed using the US Environmental Protection Agency (EPA) recommended Emissions Preprocessor System 2.0 (UAM-EPS 2.0) which generates emissions files compatible with the Urban Airshed Model (UAM). A top down evaluation of the emission inventory was performed to examine how well the inventory represented ambient pollutant compositions. The top-down evaluation methodology employed in this study compares emission inventory ratios of non-methane hydrocarbon (NMHC)/nitrogen oxide (NOx) and carbon monoxide (CO)/NOx ratios to corresponding ambient ratios. Detailed NMHC species comparisons were made in order to investigate the relative composition of individual hydrocarbon species in the emission inventory and in the ambient data. The emission inventory compiled during this effort has since been used to model ozone in the Paso del Norte airshed (Emery et al., CAMx modeling of ozone and carbon monoxide in the Paso del Norte airshed. In: Proc of Ninety-Third Annual Meeting of Air & Waste Management Association, 18-22 June 2000, Air & Waste Management Association, Pittsburgh, PA, 2000).
臭氧前体物排放清单通常用作综合光化学空气质量模型的输入。光化学模型的性能以及有效控制策略的制定依赖于基础排放清单的准确性和代表性。本文描述了为编制和评估埃尔帕索/华雷斯城/南多纳阿纳地区的臭氧前体物排放清单而开展的任务。点源、面源和移动源排放数据来自当地政府机构,并利用特定区域的人口统计和土地覆盖信息在空间和时间上分配到一个网格化区域。然后使用美国环境保护局(EPA)推荐的排放预处理器系统2.0(UAM-EPS 2.0)对清单进行处理,该系统生成与城市空气流域模型(UAM)兼容的排放文件。对排放清单进行了自上而下的评估,以检验清单对环境污染物成分的表征程度。本研究采用的自上而下评估方法将非甲烷烃(NMHC)/氮氧化物(NOx)和一氧化碳(CO)/NOx的排放清单比率与相应的环境比率进行比较。为了研究排放清单和环境数据中单个碳氢化合物物种的相对组成,还进行了详细的NMHC物种比较。此后,在此项工作中编制的排放清单已被用于对北帕索空气流域的臭氧进行建模(埃默里等人,北帕索空气流域臭氧和一氧化碳的CAMx建模。见:空气与废弃物管理协会第九十三届年会论文集,2000年6月18 - 22日,空气与废弃物管理协会,宾夕法尼亚州匹兹堡,2000年)。