"\"Content\" indicates a quantity per unit area. The \"atmosphere content\" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical formula for peroxyacetyl nitrate, sometimes referred to as PAN, is CH3COO2NO2. The IUPAC name for peroxyacetyl_nitrate is nitroethaneperoxoate."@en . . "SDN:P07::CF12N93" . "accepted"@en . . . "" . "SDN:P07::CF12N93" . . "false" . "1" . . "atmosphere_mass_content_of_peroxyacetyl_nitrate"@en . "SDN:P07::CF12N93" . "2009-07-06 15:41:29.0" . . . "2009-07-06 15:41:29.0" . "1" .