image
image image image image
 

graphics Graphics: Atmospheric Trace Gases in Whole-Air Samples

The following links are for methane, nonmethane hydrocarbons, alkyl nitrates, and chlorinated carbon compounds including three chlorofluorocarbons (CFC-11, CFC-12, and CFC-113)

Worldwide Methane Concentrations

Halogenated Organic Compounds

Alkyl Nitrates

Other non-methane hydrocarbons