ABSTRACT
Some devices used for monitoring the air or offered on the market differ substantially in technical realization of the common measurement principle. It should be possible to detect the measurement quantity for the particle content simply and with the smallest expenditure possible on personnel and material so that continuous monitoring of ambient air in populated areas can be performed. Measurement methods for determining mass concentration, for particle counting, and for determining the Coefficient of Haze (COH) require an initial air sample obtained by means of sampling equipment. Comparative measurements between the high-volume sampler and the determination of the COH were performed in the New York area. In the case of the high-volume sampler, relatively large quantities of air are sucked through a filter, and after appropriately specified treatment, the mass of the material sampled on the filter is determined by means of weighing.
