. . . . . . . . . . . . "soluble_Cd_aerosol_<1um_SD" . . . . . . "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::CSO88130" . "accepted"@en . . "Concentration standard deviation of soluble cadmium {soluble_Cd CAS 7440-43-9} per unit volume of the atmosphere [aerosol <1um phase]"@en . . . . .