福建省大气中PM10污染特征研究

AbstractBased on the atmospheric PMio in Fujian Province,the factors affecting the PMiomass concentration were discussed.temperature,wind speed,rainfall),and analyzedthe time variation law of Fujian PMio.monthly and quarterly variation laws,spatialvariation characteristics).following are the main results of the paper:(1)theconcentration PMo respirable particulates in nine cities of fujian province usuallyshows that the spring and winter are higher than the autumn,which is lower than theseasonal variation law in summer.(2)the PMio concentration of respirableparticulates in jiudi city of fujian province is generally higher in january anddecember and lower in june and july.(3)The influence of meteorological conditionson the PMio of atmospheric particulate matter can be said to be obvious,in which themass concentration of the PMio is inversely related to the average temperature,that is,the higher the temperature,the lower the mass concentration;secondly,the higher thewind speed is,to some extent,conducive to the erosion and dispersion of pollutants,which can reduce the mass concentration of PM1o.Finally,the relationship betweenrainfall and PMio mass concentration is very close,the more total rainfall,the lowerthe PMio mass concentration.mass concentration is very close,the more the totalrainfall,the lower the mass concentration of PMio.Key words:PMio;temperature;wind speed;rainfall;temporal and spatial variationlaw