"tendency_of_atmosphere_moles_of_radon"@en . "SDN:P07::CF12N740" . "1" . "SDN:P07::CF12N740" . "1" . "false" . . "SDN:P07::CF12N740" . "\"tendency_of_X\" means derivative of X with respect to time. The construction \"atmosphere_moles_of_X\" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical symbol for radon is Rn."@en . "accepted"@en . . "" . . . "2009-07-06 15:41:29.0" . . "2009-07-06 15:41:29.0" . .