. . . . . . . . . . . . . "The amount (mass or moles) of the specified chemical entity contained in aerosols within the specified size fraction isolated from a volume of atmosphere using the specified method."@en . "SDN:P01::AEC038CC" . . "soluble_Mg_aerosol_NH4AC_Leaching_>1um" . "accepted"@en . . . . "Concentration of soluble magnesium {soluble_Mg CAS 7439-95-4} per unit volume of the atmosphere [aerosol >1um phase] by filtration, leaching with pH 4.7 ammonium acetate buffer"@en . . . . . .