Abstract:

Scanning electronmicroscopy was used for the qualitative analysis of the sources of PM₁₀. The routine monitoring points in Longyan City, Fujian Province were chosen for the instantaneous sampling from September 16(th) to 23(rd) in 2009. Micromorphological features and elemental composition of PM₁₀ in the samples were analyzed and compared to those of the particulates that composed the typical local pollution sources, by which the primary pollution sources could be identified. The results indicate that there are striking differences in micromorphology and eigenelement among pollution sources. And the micromorphology and elemental composition of PM10 vary with the sampling points. The obtained results of source apportionment of PM₁₀ are in accordance with the analysis by chemical mass balance receptor model (CMB8.2).

Key words: PM₁₀； scanning electron microscope； Xray spectroscopy； CMB receptor model