This study was intended to characterize commonlyidentified constituents of concern regarding airborne organic dustexposures in refuse-derived fuel (RDF) production facilities.Measurements were made of total and respirable particulates, totaland respirable endotoxin, and total (viable plus nonviable)bioaerosols. Evaluation of particle size distribution was also madethrough sampling with an eight-stage personal cascade impactor.Sampling locations randomly chosen from a pool of locationsfrequented by plant personnel were rotated daily. The nature of theparticulate at different stages of the RDU process was describedthrough statistical comparisons. Electron microscopicexamination of collected dust was conducted to observe particle morphology.
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