[Air quality and high volume sampling methods of atmospheric dusts].

Various combinations of hi-vol samplers, size-selective inlet and two cascade impactors were tested near a highway. The Sierra 235 cascade slot impactor yielded low total dust values and very small apparent aerodynamic diameters. Sampling with the size selective inlet was found to correlate satisfactorily with hi-vol data. The effect of humidity on the mass of field collected dust is also discussed.