"2009-07-06 15:41:29.0" . . . "SDN:P07::CF12N82" . . . "SDN:P07::CF12N82" . . "false" . "2009-07-06 15:41:29.0" . "" . "accepted"@en . . . . "1" . "\"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 nitrogen dioxide is NO2."@en . . "atmosphere_mass_content_of_nitrogen_dioxide"@en . "SDN:P07::CF12N82" . "1" .