Pollution Characteristics of Aerosols during Haze Period

The aerosol characteristics during haze were analyzed from particulate matters of space and time distribution and concentration.The analysis described concentration characteristics of metal elements,water soluble ions,organic and elemental carbon,as well as correlation of particulate matters with atmospheric visibility.It indicated haze usually occurs in winter,and PM2.5 held big proportion in aerosol.Aerosol pollution had close relationship with geographical environment,climate conditions,economic development level etc.Water soluble ions more likely concentrated on the PM2.5.The visibility drop had highly related to aerosol especially fine particle matters.There were three matters in future haze research works that included the kinds of organic matters which contained in particulate matters and for the contribution in different season during haze,the formation mechanism of the organic matter in aerosol during haze,and contribution of haze formation by aerosol from different emission sources.To provide support of regulation establishment for the air pollution control,suggestion was made for research works including harmful substance identification of fine particulate matters in air,physical and chemical characteristics of particulate matters from emission source,reaction and transformation of all kinds of matters in diffusion process.