|Within Vocab||Climate and Forecast Standard Names|
|Definition||"Mass fraction" is used in the construction "mass_fraction_of_X_in_Y", where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The chemical formula for peroxyacetyl nitrate, sometimes referred to as PAN, is CH3COO2NO2. The IUPAC name for peroxyacetyl nitrate is nitroethaneperoxoate.|
standard_name: Mass fraction of peroxyacetyl nitrate in air
Concentration of nitrogen species in the atmosphere
|Has Current Version||http://vocab.nerc.ac.uk/collection/P07/current/CF12N410/2/|
|Authored On||2019-03-04 17:29:46|
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