Vehicle Exhaust Emission Characteristics and Contributions in the Pearl River Delta Region
Vehicle Exhaust Emission Characteristics and Contributions in the Pearl River Delta Region
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发表时间：
2009
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通讯作者：
Zhong Liu-ju
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作者：
Zhong Liu-ju
2006年，政府为珠江三角洲地区制订了一份车辆废气排放清单。利用清单分析了珠三角地区不同车辆类型、不同城市和燃料使用对机动车排放总量的贡献。结果表明：(1)不同车型的排放贡献率存在显著差异。重型汽油卡车、轻型汽油乘用车和轻型汽油卡车是NO_x排放的主要来源。摩托车、轻型汽油卡车和轻型汽油乘用车的挥发性有机化合物排放量最大。重型柴油车、重型柴油车和轻型柴油车是PM_10的主要贡献源。(2)广州、福山、东莞、深圳等发达和快速发展城市是珠三角地区机动车排放总量的主要贡献者；这些城市的排放量分别占机动车NO_x、VOCs和PM_10总排放量的79.7%、69.8%和77.9%。(3)柴油与汽油的比例对污染物排放有显著影响。汽油车对VOCs排放总量的贡献较大，约为93.8%，柴油车对NO_x和PM_10排放总量的贡献分别为61.5%和84.0%。
A vehicle emission inventory was developed for the Pearl River Delta(PRD) region in 2006.The inventory was used to analyze the contributions from different vehicle types,different cities,and fuel usage to the total vehicular emission in the PRD.The results show:(1) There are significant differences in the emission contributions among different vehicle types.Heavy-duty gasoline trucks,light-duty gasoline passenger cars,and light-duty gasoline trucks were the major NO_x emission contributors.Motorcycles,light-duty gasoline trucks,and light-duty gasoline passenger cars contributed most to the VOCs emissions.Heavy-duty diesel trucks,heavy duty diesel passenger cars,and light-duty diesel trucks were the main contribution sources of PM_10.(2) The developed and rapidly developing cities such as Guangzhou,Fushan,Dongguan and Shenzhen are major contributors to total motor vehicle emissions in the PRD region;the emissions from these cities account for 79.7%,69.8% and 77.9% of the total vehicular NO_x,VOCs,and PM_10 emissions,respectively.(3) The ratio of diesel vs.gasoline showed significant effects on pollutant emissions.Gasoline vehicles make significant contribution-about 93.8%-to total VOCs emissions,while diesel vehicles contribute about 61.5% and 84.0% to the total NO_x and PM_10 emissions,respectively.