National Institute for Occupational Safety and Health

“ Mesophilic bacteria and thermophilic actinomycetes are usually identified to species and fungi usually identified to genus. Interpretation is subjective and based on total numbers and rank order of taxa in complaint area compared with control areas (noncomplaint and outdoors) . ”

“ Calibrate each sampling pump with a representative sampler in line. Before each run, carefully and thoroughly wipe each sampler stage with rubbing alcohol. Allow to dry. Make sure air passages are not blocked. Load sampling media into sampler, remove covers from media, and attach sampler to pump with flexible tubing. ”