To evaluate the emission level and emission reduction potential of volatile organic compounds (VOCs) in the coating industry in Zibo, we conducted field research on eight typical enterprises in three representative coating industries:the automobile manufacturing coating industry, wooden furniture coating industry, and metal surface coating industry. The actual measurement method, material balance algorithm, and emission factor method were used to calculate the VOC emissions of enterprises, and the localized emission factors were established. The emission levels of enterprises were evaluated by comparing with other domestic and foreign studies including AP-42, and the emission reduction potential was calculated based on the material balance algorithm. The significance difference analysis method was used to study the influence degree of each link management and control. The results showed that the VOC emission factor in Zibo was 4.38 kg·car-1 for the automobile manufacturing coating industry, 212.52 g·kg-1 paint for the wooden furniture industry, and 42.79 g·kg-1 paint for the metal surface painting industry. The source emission reduction potential of furniture enterprise C and the process emission reduction potential of metal enterprises G and F could reach more than 50%. The degree of influence of each link management and control from high to low was source>process>end.
Keywords: coating industry; emission factor; emission reduction potential; pollution control; volatile organic compounds (VOCs).