Effects of reactive hydrocarbons on ozone formation in southern Taiwan

Chang, Chih-Chung; Chen, Tai-Yih; Lin, Chuan-Yao; Yuan, Chung-Shin; Liu, Shaw-Chen

doi:10.1016/j.atmosenv.2004.12.042

Cited by 70 publications

(29 citation statements)

References 21 publications

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“…Aromatic compounds such as m,p-xylene, toluene, and o-xylene also showed high RIR, while at TC, primary formaldehyde, acetaldehyde, isoprene, m,p-xylene, ethene, 1-butene, and toluene were the dominant precursors with high RIR values. These results are consistent with previous studies which found that aromatics were the main contributors in Taiwan and PRD region (Chang et al 2005;Zhang J et al 2007;Zhang YH et al 2008). However, alkanes including propane, butanes, and alkenes, which are associated with liquefied petroleum gas leakage, made a significant contribution to O 3 production in Mexico City and Santiago (Blake and Rowland 1995;Chen et al 2001).…”

Section: The Relative Effects Of Voc Species On O 3 Formationsupporting

confidence: 96%

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On the relationship between ozone and its precursors in the Pearl River Delta: application of an observation-based model (OBM)

Cheng

Guo

Wang

et al. 2009

Environ Sci Pollut Res

108

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Section: The Relative Effects Of Voc Species On O 3 Formationsupporting

confidence: 96%

“…Because of this, each VOC species has a different reactive potential with respect to O 3 formation. Several studies have explained that photochemical O 3 formation is focusing on a few key VOC species with high reactivities, such as toluene, m,p-xylene, and isoprene (Carter 1994;So and Wang 2004;Chang et al 2005).…”

mentioning

confidence: 99%

On the relationship between ozone and its precursors in the Pearl River Delta: application of an observation-based model (OBM)

Cheng

Guo

Wang

et al. 2009

Environ Sci Pollut Res

108

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“…Therefore, in locales where sources of phytogenic hydrocarbons abound, VOCs can exacerbate poor urban to regional air quality (e.g., Chameides et al 1988;Derwent et al 1998;Pierce et al 1998;Doughty et al 2013;Wang et al 2013;Lee and Wang 2006;von Schneidemesser et al 2011;Xie et al 2008;So and Wang 2004;Chang et al 2005Chang et al , 2010Papiez et al 2009;Browne and Cohen 2012;Perring et al 2010;Mao et al 2013). Oxidation of isoprene, the dominant VOC, was reported to contribute to~28 % O 3 production at certain locations (Roberts et al 1998;Starn et al 1998a, b).…”

mentioning

confidence: 94%

Chemical processing within and above a loblolly pine forest in North Carolina, USA

Fuentes

Toohey

et al. 2013

J Atmos Chem

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Hydrocarbon species and related meteorological and chemical variables were measured within and immediately above a loblolly pine forest in North Carolina, USA during 15-18 July 2003. The degree of photochemical processing within the forest canopy of biogenic hydrocarbons emitted at the foliage level is investigated with the aid of a one-dimensional photochemical model. Such in-canopy photochemical processes remain poorly understood largely due to limited observations of plant-emitted gases, chemical reactions, and yields of photochemical reactions inside plant canopies. These hydrocarbons are vented into the overlying atmospheric boundary layer and participate in regional-scale photochemical processes. At the forested site, isoprene was the dominant sink for hydroxyl radicals and ozone precursor among all the volatile organic compounds. Abundances of many hydrocarbons peaked in the early morning and late afternoon/early evening due to local emissions, while reaching minima at mid-day due to intense turbulent mixing and vigorous photochemistry. Methyl vinyl ketone and methacrolein, which were produced mostly from isoprene oxidation, had elevated mixing ratios during noontime in addition to maximum levels in the early morning and early evening. Abundances of species with dominant biogenic origin (e.g., isoprene, α-pinene, β-pinene, and limonene) were higher within the canopy than above the forest. For the species produced in the atmospheric boundary layer due to photochemical reactions, abundances residing away from the canopy were higher than those just above the canopy in response to photochemical production and/or transport associated with advection. J Atmos Chem (201 ) 7 : -2 235 259 5Published online: 17 ember 201 Nov 3 / Within the forest canopy photochemical reactions destroyed approximately 10 % of the locally emitted isoprene. Chemically more reactive species such as limonene experienced greater rates of removal in response to in-canopy chemical processing. Model sensitivity studies indicated that nitrogen oxides limited the formation of oxidants at the forested study site.

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“…The magnitude and change of anthropogenic emissions from mobile sources have pivot role in the concentrations of NOx as well as ozone (O 3 ). Biogenic emissions of VOCs such as isoprene also have great influence on the ozone production in urban areas covered with vegetation and green belt (Duan et al, 2008;Li et al, 2007;Chang et al, 2005;Biesenthal et al, 1997). In general, ozone levels in urban and rural (and coastal) areas depend on the concentrations of VOCs and NOx, respectively (Song et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Emissions of Ozone Precursors from a Biogenic Source and Port-related Sources in the Largest Port City of Busan, Korea

Shon¹

2015

Asian J. Atmos. Environ

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Effects of reactive hydrocarbons on ozone formation in southern Taiwan

Cited by 70 publications

References 21 publications

On the relationship between ozone and its precursors in the Pearl River Delta: application of an observation-based model (OBM)

On the relationship between ozone and its precursors in the Pearl River Delta: application of an observation-based model (OBM)

Chemical processing within and above a loblolly pine forest in North Carolina, USA

Emissions of Ozone Precursors from a Biogenic Source and Port-related Sources in the Largest Port City of Busan, Korea

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