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Gas                Formel                       Mischungsverhältnis
Stickstoff       N2                              78.08 %
Sauerstoff     O2                              20.95 %
Argon             Ar                              0.93 %
Neon              Ne                             18 ppm
Helium           He                             5.2 ppm
Krypton          Kr                              1.1 ppm
Wasserstoff   H2                             0.55 ppm
Xenon            Xe                             0.087 ppm

Kohlendioxid CO2                          380ppm

Summe ca.  99.97 % der trockenen Atmosphäre

zusätzlich bis zu 5% Wasserdampf