Mobile source emission inventory and its spatial-temporal distribution characteristics in Altay City
The activity level of mobile sources in Altay City was obtained by top-down investigation,the emission factor method was used to establish the mobile source emission inventory,and the temporal and spatial characteristics of mobile source emissions and inventory uncertainty analysis were carried out.The results showed that the total emissions of pollutants from mobile sources in Altay City in 2021 were CO 669.12 t,NOx 617.92 t,SO2 29.85 t,NH3 32.61 t,VOCs 136.35 t,PM2.5 35.74 t,PM10 38.06 t,BC 20.33 t,OC 6.41 t,respectively.Among them,CO,SO2,NH3 and VOCs mainly came from passenger vehicles,contributing more than 40％;NOx mainly from agricultural machinery and trucks,contributing more than 30％;PM2.5,PM10,BC,OC mainly from agricultural machinery,contributing more than 75％.The spatial-temporal distribution characteristics showed that the emission was the highest from June to August,and the emission in densely populated urban areas was relatively higher than that in other regions.The uncertainty of the emission inventory of 9 pollutants from mobile sources was-39.23％-56.27％,and the calculation results of this inventory were relatively reliable.
mobile sourceemission inventoryspatial-temporal allocationuncertainty analysisAltay City
万方数据
维普
