COMPOSITION OF AIR
Density of
Symbol % Volume Gases g / l
Air - 100.00 1.2928
2
Nitrogen N 78.084 1.2506
2
Oxygen O 20.947 1.4290
Argon Ar 0.934 1.7840
2
Carbon Dioxide CO 0.033 1.9770
Neon Ne 18.2 PPM 0.9002
Helium He 5.2 PPM 0.1785
4
Methane CH 2.0 PPM -
Krypton Kr 1.1 PPM 3.7
2
Sulfur Dioxide SO 1.0 PPM 2.927
2
Hydrogen H 0.5 PPM 0.0899
2
Nitrous Oxide N O 0.5 PPM 1.977
Xenon Xe 0.09 PPM 5.9
3
Ozone O 0.0 to 0.07 PPM 2.144
3
Ozone - winter O 0.0 to 0.02 PPM 2.144
2
Nitrogen Dioxide NO 0.02 PPM 1.4494
2
Iodine I 0.01 PPM -
Carbon Monoxide CO 0.0 to trace 1.2500
3
Ammonia NH 0.0 to trace 0.7710
147
COMPOSITION OF AIR
Density of
Symbol % Volume Gases g / l
Air - 100.00 1.2928
2
Nitrogen N 78.084 1.2506
2
Oxygen O 20.947 1.4290
Argon Ar 0.934 1.7840
2
Carbon Dioxide CO 0.033 1.9770
Neon Ne 18.2 PPM 0.9002
Helium He 5.2 PPM 0.1785
4
Methane CH 2.0 PPM -
Krypton Kr 1.1 PPM 3.7
2
Sulfur Dioxide SO 1.0 PPM 2.927
2
Hydrogen H 0.5 PPM 0.0899
2
Nitrous Oxide N O 0.5 PPM 1.977
Xenon Xe 0.09 PPM 5.9
3
Ozone O 0.0 to 0.07 PPM 2.144
3
Ozone - winter O 0.0 to 0.02 PPM 2.144
2
Nitrogen Dioxide NO 0.02 PPM 1.4494
2
Iodine I 0.01 PPM -
Carbon Monoxide CO 0.0 to trace 1.2500
3
Ammonia NH 0.0 to trace 0.7710
147
COMPOSITION OF AIR
Density of
Symbol % Volume Gases g / l
Air - 100.00 1.2928
2
Nitrogen N 78.084 1.2506
2
Oxygen O 20.947 1.4290
Argon Ar 0.934 1.7840
2
Carbon Dioxide CO 0.033 1.9770
Neon Ne 18.2 PPM 0.9002
Helium He 5.2 PPM 0.1785
4
Methane CH 2.0 PPM -
Krypton Kr 1.1 PPM 3.7
2
Sulfur Dioxide SO 1.0 PPM 2.927
2
Hydrogen H 0.5 PPM 0.0899
2
Nitrous Oxide N O 0.5 PPM 1.977
Xenon Xe 0.09 PPM 5.9
3
Ozone O 0.0 to 0.07 PPM 2.144
3
Ozone - winter O 0.0 to 0.02 PPM 2.144
2
Nitrogen Dioxide NO 0.02 PPM 1.4494
2
Iodine I 0.01 PPM -
Carbon Monoxide CO 0.0 to trace 1.2500
3
Ammonia NH 0.0 to trace 0.7710
147
COMPOSITION OF AIR
Density of
Symbol % Volume Gases g / l
Air - 100.00 1.2928
2
Nitrogen N 78.084 1.2506
2
Oxygen O 20.947 1.4290
Argon Ar 0.934 1.7840
2
Carbon Dioxide CO 0.033 1.9770
Neon Ne 18.2 PPM 0.9002
Helium He 5.2 PPM 0.1785
4
Methane CH 2.0 PPM -
Krypton Kr 1.1 PPM 3.7
2
Sulfur Dioxide SO 1.0 PPM 2.927
2
Hydrogen H 0.5 PPM 0.0899
2
Nitrous Oxide N O 0.5 PPM 1.977
Xenon Xe 0.09 PPM 5.9
3
Ozone O 0.0 to 0.07 PPM 2.144
3
Ozone - winter O 0.0 to 0.02 PPM 2.144
2
Nitrogen Dioxide NO 0.02 PPM 1.4494
2
Iodine I 0.01 PPM -
Carbon Monoxide CO 0.0 to trace 1.2500
3
Ammonia NH 0.0 to trace 0.7710
147