VOC concentration profiles in an ozone non-attainment area: A case study in an urban and industrial complex metroplex in southern Taiwan

Chiang Hung-Lung, Tsai Jiun-Horng, Chen Shih-Yu, Lin Kuo-Hsiung, Ma Sen-Yi

研究成果: Article

48 引文 斯高帕斯(Scopus)

摘要

VOCs are important precursors of the atmospheric ozone formation species. This study investigated the airborne concentrations of 52 VOCs at two air quality monitoring stations, Daliao and Tzouying, during wintertime in southern Taiwan. Airborne VOCs samples were taken in stainless steel canisters four times per day and analyzed via gas chromatography/mass spectrometry. Maximum increment reactivity (MIR) was used to evaluate the ozone formation potential in this ozone non-attainment region. Toluene, propane, isopentane, propene, n-butane, n-pentane and isoprene contributed 78-79% of the 52 VOCs in Daliao. Toluene, 1-butene, isopentane, propene, propane, n-undecane, and n-butane contributed 71-77% of the 52 VOCs in Tzouying. The VOCs concentrations were higher in Daliao due to the high toluene emissions from a paint plant and a solvent plant in the nearby industrial district. The 24-h VOC concentrations averaged 25 ppb higher in Tzouying than in Daliao. The ozone formation potential of airborne VOCs was 1687-2730 and 1717-2261 μg-O3/g-VOCs in Daliao and Tzouying, respectively. Ozone concentrations in Tzouying were 44 ppb higher than in Daliao during the 1200-1600 sampling period.

原文English
頁(從 - 到)1848-1860
頁數13
期刊Atmospheric Environment
41
發行號9
DOIs
出版狀態Published - 2007 三月 1

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Atmospheric Science

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