Analysis of Aerosol Concentrations and Transportation Characteristics in Two Strong Sand-dust Weather in Yinchuan
LIU Yulan
MA Shaiyan
XIN Yaosheng
DING Yonghong
PEI Xiaorong
SHAO Jian
Abstract：By analyzing the development of two strong sand-dust weather in Yinchuan,as well as the variation character of aerosol mass concentration and backward trajectory,the dust source and the clearance efficiency were studied,and results showed that the bigger the aerosol particle size is,the faster the concentration rangeability is,and in the process of clearance,the bigger the aerosol particle size is,the higher the cleaning efficiency is.The path of cold air,the wind direction and the source of sand-dust is all different,the sand-dust weather process ofexogenous inputs may cause strong increase of aerosol concentration even the wind speed is slower;but the increase of aerosol concentration and the increase of wind speed have a better corresponding relation in the local sand-dust.Sand-dust weather can cause serious particulate air pollution,but the appropriate wind speed conducive to the diffusion of aerosol particles,can play a role in scavenging.
Keywords：Ningxiasand-dustaerosoltransportation characteristics
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 65-69,75 )