Study on Gasoline Vehicle Emission Inventory Considering Regional Differences in China

Table 8

Gasoline vehicle deterioration correction factor.

Pollutant	1–4 years	4–7 years	7–10 years	Above 10 years
CO	1.02	1.14	1.27	1.48
HC	1.01	1.09	1.19	1.34
NOx	1.00	1.12	1.34	1.47
PM2.5/PM10	1.01	1.15	1.26	1.45

Data from Chinese Research Academy of Environmental Sciences—Technical Guidelines for Preparation of Air Pollutants Emission Inventory of Road Vehicles [15]