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Study on Source Profiles and the Application of CMB Model

Author: SunJingMin
Tutor: ChenQiang
School: Lanzhou University
Course: Meteorology
Keywords: Source profiles CMB receptor model Source Apportionment PM10
CLC: X51
Type: Master's thesis
Year: 2011
Downloads: 251
Quote: 4
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Abstract


Source apportionment technology is the source of atmospheric particulate matter qualitative or quantitative research techniques . Sources composition spectrum is the basic information to carry out studies of receptor model , but also the chemical mass balance ( CMB ) model input parameters . In order to make the source apportionment results are more reliable, more realistic , the papers sources composition spectrum of the establishment and application of the CMB model were studied. This paper introduces the basic principles of the CMB model method for solving diagnostic techniques and goodness . Analyzed the sensitivity of the the CMB model of soil sources, road dust source , wood combustion sources , biomass burning , boiler fuel source , Chaiyou Yuan and motor vehicle exhaust source , from the source contribution to the value of goodness of fit , the source of the contribution rate and elements fitting goodness three aspects of the similarities and differences of the analytical results using the same source different components of the spectrum CMB , and analyzed the correlation between the analytical results and the composition spectrum , established the CMB sensitive to various types of pollution sources extent . Correlation analysis and cluster analysis method for quantitative comparison of 23 urban air composition major source of respirable particulate matter ( PM10 ) spectrum , including coal dust , steel dust , construction dust , vehicle exhaust , dust , dust and soil wind dust component spectrum similarity . Combined with CMB source profiles sensitivity analysis and source component spectral similarity comparison , the sources composition spectrum of the principles established , and Chengdu source component spectrum and the spectrum of alternative ingredients CMB receptor model Chengdu PM10 sources resolution. The analytical results further validate the component spectrum to establish the principle of practicality , provides a basis for the establishment of source profiles and borrow , to broaden the application of the CMB .

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