长株潭区域机动车尾气排放清单及特征分析

发布时间：2018-07-22 10:23

【摘要】：通过建立2012年长株潭区域机动车尾气排放清单,分析了区域内机动车尾气排放特征,研究了排放的时空分配因子,并对清单进行了不确定性分析。结果表明:2012年长株潭区域道路机动车尾气CO、HC、NO_x、PM_(2.5)、PM_(10)、VOCs、NH_3排放量分别约为11.86、1.78、3.88、0.23、0.26、2.52、0.06万t。其中,载货汽车是NOx、PM、PM2.5的主要贡献源,载客汽车和摩托车是CO主要贡献源,摩托车是VOCs的主要贡献源,而载客汽车是NH3的主要贡献源。国I前标准车辆对CO、HC、VOCs的贡献率分别约为33.5%、31.8%、53.9%,国I标准车辆CO、HC、NO_x、PM_(2.5)、PM_(10)、VOCs、NH_3的贡献率分别约为38.6%、40.4%、47.4%、54.1%、54.1%、17.1%、16.2%,均高于车辆保有量的占有率,因此控制尾气排放应从国I前、国I车入手。此外,一周中工作日,每天08:00和17:00排放量占比较大,城区的空间分配因子明显高于郊区及乡镇区域,城镇居民使用车量对机动车尾气排放量影响较大。道路机动车排放清单估算过程中不确定性主要来自活动水平数据,尤其是平均行驶里程的选取上。
[Abstract]:By establishing the vehicle emission inventory of Chang-Zhuzhou-Xiangtan region in 2012, the characteristics of vehicle exhaust emission in the region are analyzed, the space-time distribution factor of the emission is studied, and the uncertainty of the inventory is analyzed. The results show that in 2012, the NH _ 3 emissions of COC _ (2. 5) PM_ (10) and VOCs _ (10) from road vehicle exhaust in Changzhou-Zhuzhou-Xiangtan area were 11.86 ~ (1.78) ~ 3.880 ~ (0.23) ~ 0.262.52, 600 t, respectively. Among them, truck is the main contribution source of PM2.5, passenger vehicle and motorcycle are the main contribution source of CO, motorcycle is the main contribution source of VOCs, and passenger vehicle is the main contribution source of NH3. The contribution rate of China I standard vehicle to the VOCs of COHCOHCI is about 33.53.90.The contribution rate of the standard vehicle COHCOHCOHCOHCOHCOHCOHCOHCOHCOXTROXTRO-PM2.5 / PM10 to VOCsNH _ 3 is about 38.60.44. 47.47.47.44.44.41 / 54.1m / 17.1N / 16.2which is higher than the occupation rate of the vehicle, so the exhaust emission control should start with the national I, the national I vehicle. In addition, the emission of 08:00 and 17:00 per day in the middle of the week is higher than that in the suburbs and towns, and the amount of vehicles used by urban residents has a great influence on the emission of motor vehicle emissions. The uncertainty in the estimation of road vehicle emission inventory mainly comes from the activity level data, especially the selection of average mileage.
【作者单位】：湘潭大学化工学院;湖南省环境保护科学研究院;
【基金】：国家环境保护公益性行业科研专项(201509019)
【分类号】：X734.2

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