1, Industrial Emissions: Shantou has many industrial areas, including heavy and light industries, and these factories emit a lot of exhaust during production, which contains a large number of pollutants, and these pollutants can have a serious impact on air quality.
2. Motor vehicle exhaust: With the continuous development of Shantou's economy, the number of motor vehicles is increasing, and exhaust emissions are also increasing accordingly. These pollutants will have a serious impact on air quality.
3. Seasonal climate: Shantou's climate belongs to subtropical monsoon climate with obvious seasonal changes. In winter and spring, the air humidity is high and the air pressure is low, so it is easy to form an inversion layer, making it difficult for pollutants to spread. In summer and fall, although the air pressure is high and conducive to the diffusion of pollutants, but low humidity and wind, pollutants are easily dispersed to other areas with the wind.