RM-DEMATEL: a new methodology to identify the key factors in PM2.5

Environmental Science and Pollution Research International
Yafeng ChenYong Deng

Abstract

Weather system is a relative complex dynamic system, the factors of the system are mutually influenced PM2.5 concentration. In this paper, a new method is proposed to quantify the influence on PM2.5 by other factors in the weather system and identify the most important factors for PM2.5 with limited resources. The relation map (RM) is used to figure out the direct relation matrix of 14 factors in PM2.5. The decision making trial and evaluation laboratory(DEMATEL) is applied to calculate the causal relationship and extent to a mutual influence of 14 factors in PM2.5. According to the ranking results of our proposed method, the most important key factors is sulfur dioxide (SO2) and nitrogen oxides (NO(X)). In addition, the other factors, the ambient maximum temperature (T(max)), concentration of PM10, and wind direction (W(dir)), are important factors for PM2.5. The proposed method can also be applied to other environment management systems to identify key factors.

References

Nov 26, 1999·Proceedings of the National Academy of Sciences of the United States of America·W L ChameidesF Giorgi
Aug 12, 2000·Journal of the Air & Waste Management Association·N A JanssenJ Pekkanen
Sep 13, 2002·Nature·Yoram J KaufmanOlivier Boucher
May 13, 2004·Journal of Exposure Analysis and Environmental Epidemiology·Qing Yu MengSilvia Maberti
Mar 4, 2005·Environmental Health Perspectives·Sung Kyun ParkJoel Schwartz

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Citations

Mar 3, 2018·Environmental Science and Pollution Research International·Fakhreddin HajilooMahsa Gheysari
Sep 11, 2021·PloS One·Dorota Mirosław-ŚwiątekZdzisław Skutnik

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