采用福建省龙岩市2009～2010年对龙岩环境监测站、龙岩师专、闽西大学和龙岩学院4个大气采样点中PM10开展的3期采样数据,利用主因子分析法(principal component analysis,PCA)和绝对主因子分析法(absolutely principal component analysis,APCA)对PM10的来源进行研究.结果表明:龙岩市大气主要污染源是二次扬尘/燃煤尘、汽车尾气/道路尘、土壤风沙尘和垃圾焚烧尘；龙岩监测站采样点的主要污染源为汽车尾气/二次扬尘、土壤风沙尘和道路尘；龙岩师专的主要污染源为土壤风沙尘、燃煤尘和汽车尾气/二次扬尘；闽西大学的主要污染源为二次扬尘/燃煤尘、汽车尾气和垃圾焚烧尘；龙岩学院采样点的主要污染源为二次扬尘、汽车尾气/土壤风沙尘和燃煤尘.%Principal component analysis (PCA) and absolutely principal component analysis (APCA) were used to qualitatively analyze the data of PM10 samples from three periods of 2009 to 2010 at Longyan environmental monitoring station, Longyan teachers college, Minxi university and Longyan university for the purpose to obtain the different source apportionments and contributions of PM10. The results show that on the city' s perspective, the main sources of PM10 in Longyan City are the second dust/coal dust, vehicle exhaust/ road dust, soil dust, and waste incineration. In the view of each sampling point, the main sources of PM10 at Longyan environmental monitoring station are vehicle exhaust/secondary dust, soil dust and road dust, the major sources of PM10 at Longyan teachers college are soil dust, coal dust and vehicle exhaust/secondary dust, the main sources of PM10 at Minxi university are secondary dust/coal dust, vehicle exhaust and waste incineration, the main source of PM10 at Longyan university are secondary dust, vehicle exhaust/soil dust and coal dust.
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