The focus of haze prevention is how to solve the relationship between social and economic development and
the haze prevention. In the current situation where environmental pollution becomes increasingly worse, China needs to
enhance the effectiveness of preventing and treating hazy weather. The article first introduces the characteristics of Chinese
hazy weather, including a wide range, long duration, mainly occurring in areas with low rain fall, severe pollution,
great harm, etc.; then it analyzes the causes of China’s frequent hazy weather such as the increased particulate hazards in
the air and the increased horizontal static wind and vertical temperature inversion; finally, it points out that China’s hazy
weather has harmed the health of people, exacerbated the deterioration of the ecological environment, affected social and
economic development, etc.