In recent years, energy consumption in Qinhuangdao has continued to increase, especially during the heating period in winter, which has caused frequent occurrence of haze weather. Based on the air pollutant emission inventory of Qinhuangdao in 2019, this study simulated the concentration of primary pollutants SO2, NO2 and PM10 through WRF/CALPUFF model, and analyzed the contribution of seven major industries to pollutants under haze weather. The manufacturing industry had the greatest influence on SO2, NO2 and PM10 concentration, with contribution rates of 11.9%, 15.5% and 7.7%, respectively, the second was the energy supply industry, and its contribution rates were 5.11%, 7.68% and 5.16%, respectively, the shipping emission had the least influence SO2, NO2 and PM10 concentration, with contribution rates of 1.42%, 1.56% and 0.98%, respectively.
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