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Huan Jing Ke Xue

Title:		[Characteristics of volatile organic compounds during haze episode in Foshan city]
Author(s):		Ma YL; Tan JH; He KB; Cheng Y; Yang FM; Yu YC; Tan YH; Wang JW;
Address:		"School of Environment, Tsinghua University, Beijing 100084, China. Liang@tsinghua.edu.cn"
Journal Title:		Huan Jing Ke Xue
Year:		2011
Volume:		32
Issue:		12
Page Number:		3549 - 3554
DOI:
ISSN/ISBN:		0250-3301 (Print) 0250-3301 (Linking)
Abstract:		"Volatile Organic Compounds (VOCs) in Foshan City were investigated in December 6 to 30 2008. The concentrations of VOCs in haze days were significantly higher than those in no-haze days. Toluene (68.93 microg x m(-3) +/- 37.78 microg x m(-3)) was the most abundant compound of VOCs in haze days and i-pentane (20.59 microg x m(-3) +/- 14.28 microg x m(-3)) was the most abundant compound in no-haze days, respectively. During haze episodes, the diurnal variations of alkanes and alkynes were not significantly; however, alkenes and aromatic hydrocarbon decreased significantly at noon. During no-haze episodes, the diurnal variations patterns of VOCs were stable. Propylene-equivalent concentrations in haze days were significantly higher than those in no-haze days, toluene was the most abundant compound of Propylene-equivalent concentration in haze days, followed by propene and ethene; propene was the most abundant compound in no-haze days, followed by ethene and 1-butene. High concentration of benzene (18.1 microg x m(-3)) in haze days posed a great health threat to public in Foshan city. Both diurnal variation of VOCs and measured ratios indicated vehicular emissions acted as the main sources of most VOCs and other sources like solvent application also contributed to VOCs (benzene and toluene)"
Keywords:		Air Pollutants/*analysis Benzene/analysis China Cities *Environmental Monitoring/methods Pentanes/analysis Toluene/analysis Volatile Organic Compounds/*analysis;
Notes:		"MedlineMa, Yong-Liang Tan, Ji-Hua He, Ke-Bin Cheng, Yuan Yang, Fu-Mo Yu, Yong-Chang Tan, Yun-Hua Wang, Jie-Wen chi Research Support, Non-U.S. Gov't China 2012/04/04 Huan Jing Ke Xue. 2011 Dec; 32(12):3549-54"