第42卷第5期2023年10月·试验研究·四川环境SICHUANENVIRONMENTVol.42,No.5October2023D0I:10.14034/j.cnki.schj.2023.05.004关于调整绵阳市柴油车排放限值的研究庞圣桐'，尹胧²，钟玉洁²，李波（1.绵阳市机动车污染监控及固体废物管理中心，四川绵阳621000；2.四川省机动车排污监控中心，成都610031）摘要：为能有效地筛选出高排放柴油车并促进提前淘汰，基于GB3847-2018中规定的柴油车加载减速法排放限值及测量方法，利用光吸收系数与累积频率关系，应用关联规则数据挖掘方法，对绵阳市2021年柴油车排放检测数据分析，研究表明，现行排放限值筛选出的不合格柴油车比例仅为3.7384%，若将100%VelMaxHP点和80%VelMaxHP点的光吸收系数限值由1.2m调整为0.7m"，可筛选不合格柴油车比例为17.2253%，柴油黄标车和老旧柴油车的不合格比例分别为27.7117%和26.9423%，限值调整后能有效地筛选出高排放柴油车，有助于提前淘汰，减少氮氧化物和颗粒物的排放，推动环境空气质量持续改善，为绵阳市柴油车大气污染物排放治理提供科学参考。关键词：柴油车；排放限值；累积频率；关联规则中图分类号：X701StudyonAdjustingtheEmissionLimitsofDieselVehiclesinMianyangCityPANGSheng-tong",YINLong",ZHONGYu-jie',LIBo'(1.VehicleEmissionControl&SolidWasteManagementCenterofMianyangCity,Mianyang,Sichuan621000,China;2.VehicleEmissionControlCenterofSichuanProvince,Chengdu610031,China)Abstract:Inordertoeffectivelyscreendieselvehicleswithhighemissionsandpromoteearlyelimination,basedonthelimitsandmeasurementmethodsforemissionsfromdieselvehiclesunderlugdowncycleinGB3847-2018,therelationshipbetweenlightabsorptioncoefficientandcumulativefrequencyandtheassociationruledataminingmethodwereusedtoanalyzetheemissiondetectiondataofdieselvehiclesinMianyangCityin2021.Theresultsshowedthat,theproportionofscreenedunqualifieddieselvehiclesbyexistingemissionlimitswasonly3.7384%,ifadjustthelightabsorptioncoefficientlimitsof100%VelMaxHPpointsand80%VelMaxHPpointsfrom1.2m-'to0.7m-1,theproportionofunqualifieddieselvehiclescouldreach17.2253%,theunqualifiedrateofdieselyellowlabelvehiclesandolddieselvehicleswere27.7117%and26.9423%,respectively.Afteradjustmentofthelimitvalue,Dieselvehicleswithhighemissio...
