Analysis and Evaluation of Air Quality in Tai'an City and Calculation of Atmospheric Environmental Capacity

Based on the 2019 Ambient Air Quality Report publicly released by the Ministry of Ecology and Environment,and the Department of Ecology and Environment of Shandong Province,the statistical software SPSS25. 0 was used to analyze the monthly average concentration of six indicators,namely PM_{2. 5},PM₁₀,SO₂,NO₂,CO,O₃ and the comprehensive air quality index ((Referred to as Isum). The correlation between the primary pollutant PM_{2. 5} and PM₁₀,SO₂,NO₂,CO,O₃,Isum was explored. The multiple regression equations of Isum and PM_{2. 5},PM₁₀,SO₂,NO₂,CO,O₃ were established. The difference in monthly average concentration values between Tai'an City and neighboring cities Jinan City and Jining City by t test were tested. The P value and t value were calculated to evaluate the homogeneity of air quality in Taishan District,Daiyue District,and High-tech Zone of Tai'an City.In accordance with the "Technical Methods for Formulating Local Air Pollutant Discharge Standards" (GBT3840-91),the atmospheric environmental capacity of Tai'an City was calculated. The results would provide scientific and accurate theoretical support for the air pollution prevention.