福建省大气中PM2.5污染特征研究

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福建省大气中PM2.5污染特征研究-知知文库网
福建省大气中PM2.5污染特征研究
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AbstractThe analysis of PM2s pollution characteristics in the atmosphere can providescientific basis for the prevention and control of air pollution.Based on the monthlymean of PM2smass concentration in the atmosphere from 2015 to 2019 in fujianprovince,this paper analyzed the temporal and spatial characteristics of theconcentration of fine particulate matter in the atmosphere and its influencing factors.The main research contents and results obtained are as follows:(1)A research-based analysis of the monthly environmental quality report offujian province was conducted to obtain the change characteristics and spatial andtemporal distribution characteristics of PM2s in fujian province based on the monthly,seasonal and annual changes.(2)There is a significant spatiotemporal change in the PM2.5 mass concentrationin Fujian Province.The overall atmospheric condition is mainly good,with moreserious pollution in spring,followed by winter and summer,and the lightest pollutionin autumn.At the same time,according to the atmospheric index,it can be observedthat the pollution level of coastal areas of Fujian Province will be higher than that ofinland areas.(3)Through data analysis and analysis of influencing factors,it can be concludedthat the mass concentration of PM2.5 has a great relationship with air temperature,wind speed,extreme weather,rainfall and humidity,and is negatively correlated withtemperature,extreme weather is to a certain extent The above has a certain mitigatingeffect on pollution,and the relative humidity and rainfall are negatively correlated.Key words PM2s;mass concentration;pollution characteristics;influencing factorshaze
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