Abstract
In order to facilitate intercomparison of dust concentrations measured with different samplers of total suspended particulates (TSP) the following scheme is proposed: based on regressions of experimental data permitting particle size values d 80 and d 50 ( d k is the particle diameter of the aerosol mass size distribution for which k per cent of the mass comes with particles smaller than d k ) as a function of wind speed, the knowledge of the average wind speed occurring during a typical sampling interval permits an assessment of the characteristic stop distances S 50, S 80 of the aerosol to be sampled. If the samplers are characterized by the maximum particle stop distance up to which they allow representative sampling, suitable correction factors derived from S 50, S 80 allow conservative estimates of the TSP concentration.
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