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Environ Pollut

Title:		Volatile organic compound identification and characterization by PCA and mapping at a high-technology science park
Author(s):		Lan CH; Huang YL; Ho SH; Peng CY;
Address:		"Department of Occupational Safety and Health, Chung-Hwa University of Medical Technology, No. 89, Wenhwa 1st St., Rende Dist., Tainan 717, Taiwan. Electronic address: hang@mail.hwai.edu.tw. Department of Safety, Health and Environmental Engineering, National Kaohsiung First University of Science and Technology, No. 1, University Rd., Yanchao Dist., Kaohsiung 811, Taiwan. Electronic address: ylhuang@ccms.nkfust.edu.tw. Department of Occupational Safety and Health, Chung-Hwa University of Medical Technology, No. 89, Wenhwa 1st St., Rende Dist., Tainan 717, Taiwan. Electronic address: digimahoo@yahoo.com.tw. Department of Public Health, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Rd., Sang Ming Dist., Kaohsiung 807, Taiwan. Electronic address: pengcy@kmu.edu.tw"
Journal Title:		Environ Pollut
Year:		2014
Volume:		20140712
Issue:
Page Number:		156 - 164
DOI:		10.1016/j.envpol.2014.06.014
ISSN/ISBN:		1873-6424 (Electronic) 0269-7491 (Linking)
Abstract:		"High-technology industries have grown continuously in Taiwan and elsewhere in the world. Volatile organic compounds (VOCs) comprise the highest percentage of emissions in these industries. The objectives of this study were to identify VOC sources and to apportion their contributions by using a three-step approach. These included estimating concentration distributions, performing principal component analysis (PCA), and mapping concentration contours. The results showed that the dominant compound groups were aromatic and aliphatic compounds. The PCA resolved four emission sources: vehicular traffic, industrial solvents, waste water plants, and cleaning/degreasing agents. Spatial distributions showed that concentrations of vehicular traffic-related compounds (benzene and isooctane) were highest at the entrances to the science park, and strongly related to traffic volume, and that the emissions of industry-related compounds (xylene and ethylbenzene) were closest to the associated sources. This study provided an accurate, practical and efficient method of characterizing emission sources in an industrial complex"
Keywords:		Air Pollutants/*analysis Benzene/analysis Benzene Derivatives/analysis Environmental Monitoring/*methods Principal Component Analysis Taiwan Volatile Organic Compounds/*analysis Xylenes/analysis Aromatics Chlorinated compounds Principal component analysis;
Notes:		"MedlineLan, Cheng-Hang Huang, Yu-Li Ho, Sheng-Huei Peng, Chiung-Yu eng Research Support, Non-U.S. Gov't England 2014/07/16 Environ Pollut. 2014 Oct; 193:156-164. doi: 10.1016/j.envpol.2014.06.014. Epub 2014 Jul 12"