N₂ nitrogen 78,0940 75,0590 78,0800 66
O₂ oxygen 20,9420 18,0340 20,9420 18
Ar argon 0,93019 1,0000 0,93019 0
CO₂ carbon dioxide 0,0300 2,0010 0,02 0
Ne neon 0,0018 0 0,0005 0
He helium 0,00052 0 0,0005 0
CH₄ methane 0,00022 0 0,0005 0
Kr krypton 0,0001 0 0,0005 0
H₂ hydrogen 0,00005 0 0,0005 3
N₂O nitrous oxide 0,00001 0 0,0005 10
H₂O water 0 2 0,0005 0
Xe xenon 0,00008 0 0,0005 0
NO₂ nitrogen dioxide 0,00001 0 0,0005 3
O₃ ozone 0 2 0,002 0
SO₂ sulphur dioxide 0,00001 0 0,0005 0
I₂ iodine 0,00001 0 0,0005 0