Gas in Atmosphere

1. CO2: 0.0419% gas in the atmosphere.

2. CH4: 1911.8 ± 0.6 parts per billion in the atmosphere.

3. N2O: 331 parts per billion in the atmosphere.

4. CO2e: 1.5% in the atmosphere.

5. F-Gases: 2.4% in the atmosphere.

6. SF6: 3 parts per trillion in the atmosphere.

7. NF3: 0.5 parts per trillion. 

8. O2: 21% in the atmosphere.

9. H2O: 0.04% to 0.20% in the atmosphere depending on moisture or dryness on Earth.

10. Ar: 1% in the atmosphere.

Source:

Dessler, A. (2016). Introduction to Modern Climate Change. Retrieved from: 

https://play.google.com/books/reader?id=YZmECgAAQBAJ&pg=GBS.PR1 

EPA . (Feb. 15, 2023). Global Greenhouse Gas Emissions. Retrieved from: 

Global Greenhouse Gas Emissions Data | US EPA