Abstract
The methods of optical microscopy, cascade impaction, and single-particle aerodynamic relaxation-time (SPART) analysis were used to determine the size spectra of five common household aerosol products. Count median diameters obtained in the microscope study agreed well with the values obtained in the SPART analysis, with values ranging from 0.74 to 1.22 μm in both studies. Comparison of mass median diameters obtained in the SPART analysis and cascade impaction study showed less agreement. Values for both techniques ranged from 1.95 to 3.80 μm with the exception of the oven cleaner, which yielded a mass median aerodynamic diameter of 23.5 μm in the impaction study.
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