SAMPAIO, Carlos A. de P.; NÄÄS, Irenilza de A.; BARACHO, Marta dos S.; SALGADO, Douglas D.
Résumé:
Substantial evidence shows that some physical, chemical and biological agents have a
negative effect on health and productivity of animals and the workers. The study was carried out at
commercial swine production facilities at growing and finishing with the objectives to evaluate NH3,
dust and fungi concentrations and estimate the occupational risk exposition the workers. The
evaluation was made as suggested by NR15, NIOSH and ACGIH norms. The results indicated
significant differences at 5% probability in the average concentration of NH3 with regard to feeding
schedule, typology and periods available. Total dust concentrations were lower for finishing units
(0.84-3.34mg.m-3) than for growing units (0.84-9.16mg.m-3). The respirable dust concentrations were
higher than for growing units, and less than 3.67mg.m-3. These concentrations were lower than the
limits recommended for workers. The most prevalent molds found were Aspergillus, followed by
Penicillium and Neurospora. In the Aspergillus genus it was found the following species A. niger, A.
parasiticus, A. candidus, A. flavus, A. nidulans.
