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J Hazard Mater

Title:		Ambient BTEX and MTBE in the neighborhoods of different industrial parks in Southern Taiwan
Author(s):		Hsieh LT; Yang HH; Chen HW;
Address:		"Department of Environmental Engineering and Science, National Pingtung University of Science and Technology, Nei Pu 912, Ping Tung 91201, Taiwan.Lthsieh@mail.npust.edu.tw"
Journal Title:		J Hazard Mater
Year:		2006
Volume:		20051118
Issue:		2-Mar
Page Number:		106 - 115
DOI:		10.1016/j.jhazmat.2005.08.001
ISSN/ISBN:		0304-3894 (Print) 0304-3894 (Linking)
Abstract:		"This study assessed the concentrations of five volatile organic compounds (VOCs), including BTEX (the acronym for benzene, toluene, ethylbenzene, and xylene) and methyl tertiary-butyl ether (MTBE), in six different industrial park neighborhoods in southern Taiwan, including the Nei-Pu, Ping-Tung, Ping-Nan, Ren-Wu, Lin-Yuan and Nan-Zi industrial parks. The concentrations of MTBE and BTEX ranged from undetectable to 145.6 microg/m3. Average MTBE-BTEX ratios of Nei-Pu, Ping-Tung, Ping-Nan, Ren-Wu, Lin-Yuan and Nan-Zi were (13.4:3.6:4.7:1.0:7.4), (2.9:1.0:1.7:1.3:2.9), (3.0:1.0:2.7:1.0:2.7), (5.2:1.0:8.6:1.7:4.9), (3.1:3.1:2.8:1.0:3.3) and (4.3:1.2:3.6:1.0:3.8), respectively. Moreover, average T/B ratios in Nei-Pu, Ping-Tung, Ping-Nan, Ren-Wu, Lin-Yuan and Nan-Zi were 1.3, 1.7, 2.6, 8.6, 0.9 and 2.9, respectively. High T/B ratio (8.6) in the neighborhood of the Ren-Wu industrial park suggested that the emission of large additional sources of toluene from this industrial park, or the existence of major differences in the auxiliary fuels used. Average X/E ratios in Nei-Pu, Ping-Tung, Ping-Nan, Ren-Wu, Lin-Yuan and Nan-Zi were 7.4, 2.2, 2.7, 2.9, 3.3 and 3.8, respectively. The lower X/E ratio (2.2) in the Ping-Tung neighborhood compared to elsewhere indicates an aged air parcel. Furthermore, principal component analysis also confirmed that the dominant influences in the six different industrial park neighborhoods were related to the emissions of MTBE, benzene and toluene"
Keywords:		"Air Pollutants/*analysis Air Pollution/*analysis Benzene/analysis Benzene Derivatives/analysis Environmental Monitoring/methods Hydrocarbons, Aromatic/*analysis Industrial Waste/*analysis Meteorological Concepts Methyl Ethers/*analysis Principal Component;"
Notes:		"MedlineHsieh, Lien-Te Yang, Hsi-Hsien Chen, Ho-Wen eng Comparative Study Research Support, Non-U.S. Gov't Netherlands 2005/11/23 J Hazard Mater. 2006 Feb 6; 128(2-3):106-15. doi: 10.1016/j.jhazmat.2005.08.001. Epub 2005 Nov 18"