Based on the emission data of atmospheric pollution sources in 2020,the emission characteristics of atmospheric pollution sources in Jining City were studied and analyzed.The results show that the primary emission source of SO2 is fossil fuel fixed source,and its contribution rate to the city is 47.5%.The first contribution source of NOx is the mobile source,with a contribution rate of 84.7%.VOCs emissions are mainly contributed by mobile sources and solvent use sources,with contribution rates of 35.6%and 33.0%,respectively.NH3 emissions are mainly from agricultural sources,accounting for 90.8%.The main emission sources of PM10 and PM2.5 were dust sources,accounting for 80.8%and 62.3%,respectively.
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