« Previous AbstractRisk assessment of exposure to volatile organic compounds in different indoor environments    Next AbstractThree pheromone-binding proteins help segregation between two Helicoverpa species utilizing the same pheromone components »

J Hazard Mater

Title:		Which emission sources are responsible for the volatile organic compounds in the atmosphere of Pearl River Delta?
Author(s):		Guo H; Cheng HR; Ling ZH; Louie PK; Ayoko GA;
Address:		"Air Quality Studies, Department of Civil and Structural Engineering, Hong Kong Polytechnic University, Hong Kong. ceguohai@polyu.edu.hk"
Journal Title:		J Hazard Mater
Year:		2011
Volume:		20110126
Issue:		1-Mar
Page Number:		116 - 124
DOI:		10.1016/j.jhazmat.2011.01.081
ISSN/ISBN:		1873-3336 (Electronic) 0304-3894 (Linking)
Abstract:		"A field measurement study of volatile organic compounds (VOCs) was simultaneously carried out in October-December 2007 at an inland Pearl River Delta (PRD) site and a Hong Kong urban site. A receptor model i.e. positive matrix factorization (PMF) was applied to the data for the apportionment of pollution sources in the region. Five and six sources were identified in Hong Kong and the inland PRD region, respectively. The major sources identified in the region were vehicular emissions, solvent use and biomass burning, whereas extra sources found in inland PRD included liquefied petroleum gas and gasoline evaporation. In Hong Kong, the vehicular emissions made the most significant contribution to ambient VOCs (48 +/- 4%), followed by solvent use (43 +/- 2%) and biomass burning (9 +/- 2%). In inland PRD, the largest contributor to ambient VOCs was solvent use (46 +/- 1%), and vehicular emissions contributed 26 +/- 1% to ambient VOCs. The percentage contribution of vehicular emission in Hong Kong in 2007 is close to that obtained in 2001-2003, whereas in inland PRD the contribution of solvent use to ambient VOCs in 2007 was at the upper range of the results obtained in previous studies and twice the 2006 PRD emission inventory. The findings advance our knowledge of ozone precursors in the PRD region"
Keywords:		Air Pollutants/*analysis Air Pollution/*analysis Fires Hong Kong Rivers Solvents Vehicle Emissions Volatile Organic Compounds/*analysis;
Notes:		"MedlineGuo, H Cheng, H R Ling, Z H Louie, P K K Ayoko, G A eng Research Support, Non-U.S. Gov't Netherlands 2011/02/15 J Hazard Mater. 2011 Apr 15; 188(1-3):116-24. doi: 10.1016/j.jhazmat.2011.01.081. Epub 2011 Jan 26"