Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29590
Title: Long-term atmospheric measurements of C1-C5 alkyl nitrates in the Pearl River Delta region of southeast China
Authors: Simpson, IJ
Wang, T 
Guo, H 
Kwok, YH
Flocke, F
Atlas, E
Meinardi, S
Rowland, FS
Blake, DR
Keywords: Alkyl nitrates
Photochemistry
China
Urban pollution
Ozone
Issue Date: 2006
Publisher: Pergamon Press
Source: Atmospheric environment, 2006, v. 40, no. 9, p. 1619-1632 How to cite?
Journal: Atmospheric environment 
Abstract: Mixing ratios of seven C1¡VC5 alkyl nitrates (RONO2) were measured during a 16-month study (August 2001¡VDecember 2002) at Tai O, a coastal site 30 km west of central Hong Kong in the Pearl River Delta, the fastest-growing industrial region in the world. The C3¡VC4 (rather than C1¡VC2) RONO2 were most abundant throughout the study, showing the importance of photochemical (rather than marine) RONO2 production in the sampled air. A lack of methyl nitrate (MeONO2) enhancement during summer, when the prevailing winds are from the ocean, indicates that the South China Sea is not a region of strong RONO2 emissions. By contrast, MeONO2 levels during pollution episodes (up to 25 parts per trillion by volume (pptv)) were the highest that our group has recorded during urban photochemical RONO2 production, as opposed to marine emissions or biomass burning. The highest summed RONO2 level of the study (204 pptv) was measured in the afternoon of 7 November 2002, dur
URI: http://hdl.handle.net/10397/29590
ISSN: 1352-2310
EISSN: 1873-2844
DOI: 10.1016/j.atmosenv.2005.10.062
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