Identification source of variation on regional impact of air quality pattern using chemometric

Azid, Azman and Juahir, Hafizan and Ezani, Ezureen and Toriman, Mohd Ikhwan and Endut, Azizah and Abdul Rahman, Mohd Nordin and Yunus, Kamaruzzaman and Kamarudin, Mohd Khairul Amri and Che Hasnam, Che Noraini and Mohd Saudi, Ahmad Shakir and Umar, Roslan (2015) Identification source of variation on regional impact of air quality pattern using chemometric. Aerosol and Air Quality Research, 15 (4). pp. 1545-1558. ISSN 2071-1409 (O),1 680-8584 (P) E-ISSN 2071-1409

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Abstract

This study intends to show the effectiveness of hierarchical agglomerative cluster analysis (HACA), discriminant analysis (DA), principal component analysis (PCA), factor analysis (FA) and multiple linear regressions (MLR) for assessing the air quality data and air pollution sources pattern recognition. The data sets of air quality for 12 months (January–December) in 2007, consisting of 14 stations around Peninsular Malaysia with 14 parameters (168 datasets) were applied. Three significant clusters - low pollution source (LPS) region, moderate pollution source (MPS) region, and slightly high pollution source (SHPS) region were generated via HACA. Forward stepwise of DA managed to discriminate 8 variables, whereas backward stepwise of DA managed to discriminate 9 out of 14 variables. The method of PCA and FA has identified 8 pollutants in LPS and SHPS respectively, as well as 11 pollutants in MPS region, where most of the pollutants are expected derived from industrial activities, transportation and agriculture systems. Four MLR models show that PM10 categorize as the primary pollutant in Malaysia. From the study, it can be stipulated that the application of chemometric techniques can disclose meaningful information on the spatial variability of a large and complex air quality data. A clearer review about the air quality and a novel design of air quality monitoring network for better management of air pollution can be achieved.

Item Type:	Article (Journal)
Additional Information:	5410/45415
Uncontrolled Keywords:	Air quality; Chemometric; Pattern recognition; HACA; DA; PCA; FA; MLR
Subjects:	Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science
Depositing User:	Professor Dr. Kamaruzzaman Yunus
Date Deposited:	29 Oct 2015 16:45
Last Modified:	06 Sep 2017 16:05
URI:	http://irep.iium.edu.my/id/eprint/45415

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