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Potential aerosol release rates during wind erosion of soils have been quantified by such methods as sand-Suspendable-size soil particles are released during wind erosion and blasting aggregates in laboratory settings (Alfaro et al., transported downwind, impacting regional air quality. Of particular concern are those particles with a mean aerodynamic diameter of 1998), measuring concentrations of fine particles during Ͻ10 m (PM 10) and the finer subset of those Ͻ2.5 m (PM 2.5). To wind tunnel experiments (Mirzamostafa et al. 1998; estimate the air quality impact of wind erosion, the potential release Weinan et al., 1998) and by direct field measurements from nondispersed soil of PM 10 and PM 2.5 particles must be quantified