Cause Analysis and Research Development of Haze

In recent years,the deterioration of visibility events triggered by aerosol pollution worsening haze became a common environmental disaster,and pollution incidents got more and more attention.The definition of haze causes and influencing factors were introduced,and pollution characteristics of haze and relevance of haze and visibility were analyzed from two aspects of Spatial and temporal distribution of atmospheric particulate matter and contamination levels.The research progress of source apportionment of pollutants in the atmosphere in domestic was introduced,and future research directions of haze were proposed.