. . . . . . . "accepted"@en . . "SD_Ca_aerosol_<1um" . "Concentration standard deviation of calcium {Ca CAS 7440-70-2} per unit volume of the atmosphere [aerosol <1um phase] by filtration and inductively-coupled plasma atomic emission spectroscopy"@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::ASDCAA01" . . . . . . . . . . . . . . . . . . .