Hwang, Su-Lun Seasonal variation and source apportionment of PM [electronic resource] - Environmental science and pollution research international Mar 2018 - 9101-9113 p. digital Publication Type: Journal Article ISSN: 1614-7499 Standard No.: 10.1007/s11356-017-1144-2 doi Subjects--Topical Terms: Coal--analysisDust--analysisFactor Analysis, StatisticalIndustryParticulate Matter--analysisSeasonsSoilSteelTaiwanTrace Elements--analysis