Source Apportionment and Influencing Factor Analysis of Residential Indoor PM_2.5 in Beijing.

ABSTRACT: In order to identify the sources of indoor PM_2.5 and to check which factors influence the concentration of indoor PM_2.5 and chemical elements, indoor concentrations of PM_2.5 and its related elements in residential houses in Beijing were explored. Indoor and outdoor PM_2.5 samples that were monitored continuously for one week were collected. Indoor and outdoor concentrations of PM_2.5 and 15 elements (Al, As, Ca, Cd, Cu, Fe, K, Mg, Mn, Na, Pb, Se, Tl, V, Zn) were calculated and compared. The median indoor concentration of PM_2.5 was 57.64 μg/m³. For elements in indoor PM_2.5, Cd and As may be sensitive to indoor smoking, Zn, Ca and Al may be related to indoor sources other than smoking, Pb, V and Se may mainly come fro

SUBMITTER: Yang Y 

PROVIDER: S-EPMC5923728 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature