Miami-Dade County - Environmental Resources - Chemical Composition of Air

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Chemical Composition of Air

Chemical Composition of Air
Name	Symbol	% by Volume
Nitrogen	N2	78.084
Oxygen	O2	20.9476
Argon	Ar	00.934
Carbon Dioxide	CO2	00.0314
Neon	Ne	00.001818
Methane	CH4	00.0002
Helium	He	00.000524
Krypton	Kr	00.000114
Hydrogen	H2	00.00005
Xenon	Xe	00.0000087

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