Abstract
The results of experiments to assess the comparability of bacterial sampling methods are reported. An Andersen viable particle sampler and two sizes of Nuclepore filters (pore size: 0.4 μm) were exposed simultaneously to an unknown concentration of airborne bacteria in a closed room. After exposure, the filters were placed facedown on blood agar plates for 10 minutes to transfer the bacteria. Total numbers of colonies were counted after incubation of all blood agar plates for 20 hours. Although giving no indication of bacterial concentration the settle plate “sampler” was the most practical of the methods employed.
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