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作 者:熊阳欣 秦之湄 胡秋萍 田红 邓小芸 张季 徐义 秦鹏程 王斌[1] XIONG Yangxin;QIN Zhimei;HU Qiuping;TIAN Hong;DENG Xiaoyun;ZHANG Ji;XU Yi;QIN Pengcheng;WANG Bin(College of Architecture and Environment,Sichuan University,Chengdu 610065;Chengdu Technology Center of Vehicle Exhaust Pollution,Chengdu 610066;Sichuan Academy of Environmental Policy and Planning,Chengdu 610093)
机构地区:[1]四川大学建筑与环境学院,成都610065 [2]成都市机动车排气污染防治技术保障中心,成都610066 [3]四川省环境政策研究与规划院,成都610093
出 处:《环境科学学报》2021年第12期5083-5092,共10页Acta Scientiae Circumstantiae
基 金:四川大学市校战略合作专项资金项目(No.2019CDYB⁃14)。
摘 要:基于城市汽车年检中CO_(2)的过程动态检测数据,对小型汽油客车CO_(2)的排放因子和排放水平信息进行了挖掘,并与文献研究结果进行了对比.结果表明,从城市汽车年检数据中挖掘的CO_(2)排放结果可以作为研究城市机动车碳排放的重要参考依据;合理有效地利用汽车年检数据可以为城市车辆尾气排放的精准分级管控、城市交通运输碳排放达峰的量化分析,以及城市交通源的污染物和CO_(2)协同减排提供重要的数据支撑;从国Ⅰ到国Ⅴ不同排放阶段汽油车的常规污染物CO、NO_(x)和HC的排放水平下降非常明显,而对应的CO_(2)排放水平差异不大;CO_(2)排放因子随累计行驶里程、车龄、基准质量和排量的变化关系反映出,如果需要削减城市汽车碳排放水平,应鼓励使用基准质量小或者排量小的车辆,淘汰高油耗高排放的老旧车辆,鼓励公共绿色出行而降低单车活动水平,增加纯电动车辆优化车队能源结构.On the basis of runtime CO_(2) emission data from vehicle emission inspection(VEI),this study explored the CO_(2) emission factors and levels of small gasoline cars,and performed comparisons with literature data.The results show that the VEI⁃derived CO_(2) emissions can be used as an important reference to characterize the urban CO_(2) emissions from vehicles.Effective and appropriate use of urban VEI data can provide critical information for precise supervision of urban vehicle emission,estimation of peak CO_(2) emission from urban transportation,and coordinated emission reduction of pollutants and CO_(2) from urban transportation.From the National Stage I to V,the CO,NO_(x),and HC emissions considerably declined,while the CO_(2) emissions kept steady.The relationships between the CO_(2) emission factors and the cumulative mileages,vehicle ages,reference mass,and displacement had the following important implications for reducing the carbon emissions from urban vehicles:the vehicles with low reference mass or low displacement should be promoted;the old vehicles with high fuel consumption and high emissions should be obsoleted;the green travel via public transportation to lower the activity levels of private vehicles should be promoted;pure electric vehicles should be increased for optimization of the energy structure of car fleets.
关 键 词:碳排放 汽车年检 简易瞬态工况法(VMAS) 小型客车 CO_(2)排放因子
分 类 号:X323[环境科学与工程—环境工程]
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