. . . . . . . . . . . . . . "accepted"@en . . . "Concentration standard deviation of soluble thorium {soluble_Th CAS 7440-29-1} per unit volume of the atmosphere [aerosol >1um phase]"@en . "The square root of the average of the squares of deviations about the mean of a set of values of the specified measurement."@en . . . . "SDN:P01::CSO88141" . . . "soluble_Th_aerosol_>1um_SD" . .