Effect of wind-blown dust derived from Tianjin suburban on air quality of central district based on WEPS model
Effect of wind-blown dust derived from Tianjin suburban on air quality of central district based on WEPS model
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发表时间：
2012
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影响因子：
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通讯作者：
Wang Bin
中科院分区：
文献类型：
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作者：
Wang Bin
Based on U.S.wind erosion prediction system(WEPS),secondary development of this model was done in order to estimate the effect of wind-blown dust came from suburban on air quality of central district.The database files of blocks were localized,including wind file,climate file,soil file and management file.The dust flux of each dusting block was estimated,including creep and saltation fluxes,suspension fluxes and PM10 fluxes.In 2009,the maximum emission fluxes per block and emission fluxes occurred in winter.In winter,the creep and saltation fluxes,suspension fluxes and PM10fluxes pointing to central district were the most comparing to other seasons.In spring,emission fluxes mainly came from east,in summer,mainly came from west;in autumn,mainly came from west,and in winter,mainly came from north.In 2009,PM10fluxes came from north was 9.67 104t,and accouted for 81.7% in winter.So,PM10 came from northern suburban districts in winter affected deeply on the air quality of central district.
