Analysis of PM_(10) Source Profiles in Beijing

PM_(10) from soil dust,road dust,urban fugitive dust,construction dust,steel dust,and coal dust in Beijing were sampled and analyzed,and relevant source profiles are constructed.By their chemical compositions analysis,characters and marker elements of these PM_(10) sources are acquired.Markers of soil,construction dust,steel dust,coal dust are separately Si,Ca,Fe and Al.Road dust shows distinct characters of soil dust,construction dust and motor vehicle exhaust.Urban fugitive dust is strong collinear with road dust,and has obvious character of it.