Air pollution in Shenyang City was studied using data from 2017 to 2019. Different pollutants like CO, SO2, NO2, O3, PM2.5, and PM10 were analyzed along with weather conditions. O3 levels were higher in the north, while CO, SO2, and NO2 were higher in the city center. PM2.5 and PM10 were higher in the southwest. Pollution levels were lowest in 2019. O3 was highest in spring, while CO stayed consistent throughout the seasons. Other pollutants were higher in winter and lower in summer. Pollution levels peaked in March and were lower in July-September. O3, CO, and SO2 had one peak in concentration during the day, while others had two peaks and valleys. Temperature was linked to O3 levels, while wind speed affected PM2.5, NO2, and O3 concentrations. Coastal air flow impacted air quality in spring and summer, while northwest air flow affected it in autumn and winter.