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Estimation of Indirect Greenhouse Effect by Non-methane Volatile Organic Compounds

비메탄계 휘발성유기화합물에 의한 간접 온실효과의 산출

  • Choi, Eun-Hwa (Department of Climate Change Action, Korea Environmental Corporation)
  • 최은화 (한국환경공단 기후변화대응처)
  • Received : 2011.09.16
  • Accepted : 2012.01.03
  • Published : 2012.02.29

Abstract

Indirect $CO_2$ effect due to non-methane volatile organic compound (NMVOC) emissions from solvent and product use and fugitive NMVOC emissions from fuels in the Republic of Korea and 13 Annex I countries under United Nations Framework on Climate Change were estimated and the proportions of them to total greenhouse gas (GHG) emissions ranged from 0.092% to 0.45% in 2006. Indirect greenhouse effect ($CO_2$, $CH_4$, and $O_3$) were estimated at 13 photochemical assessment monitoring sites in the Republic of Korea using concentrations of 8 NMVOCs of which indirect global warming potential (GWP) were available. The contribution of toluene to mixing ratio was highest at 11 sites and however, the contribution of toluene to indirect greenhouse effect was highest at nine sites. In contrast to toluene, the contributions of ethane, butane, and ethylene were enhanced. The indirect greenhouse effects of ethane and propane, of which ozone formation potentials are the lowest and the third lowest respectively among targeted 10 NMVOCs, ranked first and fourth highest respectively. Acetaldehyde has relatively higher maximum incremental reactivity and is classified as probable human carcinogen however, its indirect GWP ranked second lowest.

Keywords

Greenhouse gase (GHG);Global warming potentials (GWP);Indirect greenhouse effect;Volatile organic compound (VOC)

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