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O3-CO 일변화
CO oxidation
Sources of CH4 (메탄):
Roughly 10% of ·OH in the troposphere reacts with CH4
[CH4] ~ 1.6 – 1.7 ppm (global avg.)
- Biological process of methanogenesis, such as enteric fermentation (e.g. in cows)
- Natural wetlands
- Rice paddies (in the soil)
- Termite guts
- Landfills
- Fossil fuel reservoirs (so called ancient methanogenesis).
- Anthropogenic fossil-fuel combustion
- Biomass burning
- Sink of methane:
- Atmospheric oxidation
CH4 oxidation
HCHO (포름알데하이드)
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