Why is the air quality in Shenzhen obviously better than that in most cities in China?

It is mainly determined by geographical location, and secondly Shenzhen is a commercial city with less industrial pollution. The specific expression is as follows: Shenzhen is located in the south of Guangdong, on the east bank of the Pearl River Delta, separated from Hong Kong by water, bordering Daya Bay and Dapeng Bay in the east, the Pearl River Estuary and Lingdingyang in the west, connecting Hong Kong with Shenzhen River in the south and Dongguan and Huizhou in the north. 20 16, 16 On June 4th, 2006, the Research Report on Livable Cities in China released by China Academy of Sciences showed that the livability index of Shenzhen ranked ninth among 40 cities in China.

Located in the south-central coastal area of Guangdong Province, northeast of the Pearl River Estuary, with low latitude, it has a subtropical maritime climate. Affected by monsoon, southeast wind prevails in summer, monsoon depression, tropical cyclone patronage, high temperature and rainy weather; The northeast monsoon prevails in other seasons, with dry weather and mild climate. The annual average temperature is 22.4℃, the highest temperature is 38.7℃ (1980 July 10), and the lowest temperature is 0.2℃ (1957 February 1 1). There is abundant rainfall, with the rainy season from April to September every year, with annual rainfall of1.933mm, maximum annual rainfall of 2662mm (1.957) and minimum annual rainfall of 91.3mm (1.963). The sunshine time is long, with an average annual sunshine time of 2 1. 20. 5 hours and annual solar radiation of 5225 MJ/m2. The dominant wind direction throughout the year is east-southeast, and it is affected by tropical cyclones (typhoons) 4-5 times a year on average.