Assessment of motor vehicle emission control policies using Model-3/CMAQ model for the Pearl River Delta region, China

被引:74
作者
Che, Wenwei [1 ,2 ]
Zheng, Junyu [1 ,2 ]
Wang, Shuisheng [1 ,2 ]
Zhong, Liuju [3 ]
Lau, Alexis [2 ,4 ]
机构
[1] S China Univ Technol, Coll Environm Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China
[2] Pearl River Delta Atmospher Environm Res Joint La, Guangzhou 510006, Guangdong, Peoples R China
[3] Guangdong Prov Environm Monitoring Ctr, Guangzhou 510045, Guangdong, Peoples R China
[4] Hong Kong Univ Sci & Technol, Div Environm, Kowloon, Hong Kong, Peoples R China
关键词
Vehicle pollution; Emission inventory; Control strategies; CMAQ model; Assessment; ATMOSPHERIC BOUNDARY-LAYER; VOLATILE ORGANIC-COMPOUNDS; NONLOCAL CLOSURE-MODEL; PART II; CMAQ;
D O I
10.1016/j.atmosenv.2010.12.050
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In recent decades, the Pearl River Delta (PRO) region located in south China has been experiencing severe air pollution, arising from the rapid increase in industry and motor vehicles. As a major contributing source to VOCs and NOx emissions, control of vehicular emissions plays a very important role in improving regional air quality. By taking 2015 as a target year, this paper assessed the impacts of five possible motor vehicle emission control measures and a combined policy scenario on ambient air quality in the PRD region, with the use of the Model-3/CMAQ (Community Multi-scale Air Quality) model. The results show: (1) an overall decreasing pattern in SO2, NO2 and PM10 concentrations was found in central-south metropolitan areas of the PRO region for all measures, but increased O-3 concentrations may occur in these areas as well. The exception to this is that a slight decrease was observed for the cases of motorcycle restriction and introduction of HEV: (2) upgrading to National IV emission standards is the most effective individual measure and can reduce daily averaged NO2 and PM10 concentrations by 11.7 ppbV and 21.3 mu g m(-3), respectively; but involves an increase (at maximum) of 10.3ppbV in O-3 concentration. Evaluation of the combined scenario indicates that solely controlling motor vehicle emissions is not sufficient to improve PRO regional air quality significantly. O-3 and PM10 concentrations under the same VOC/NOx reduction ratios exhibit differently at different locations, suggesting that integrated and location-specific pollution control strategies, considering co-control of multi-pollutants, are needed in this region in order to decrease primary and secondary pollutant concentrations simultaneously. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1740 / 1751
页数:12
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