RT Journal Article SR Electronic A1 Karel, Klouda A1 Juraj, Sinay A1 Jiří, Cejpek A1 Karel, Lach T1 Identification of Nano- and Microparticle Aerosols Generated in Selected Operations JF Acta Mechanica Slovaca YR 2013 VO 17 IS 2 SP 90 OP 102 DO 10.21496/ams.2013.025 UL https://www.actamechanica.sk/artkey/ams-201302-0012.php AB The contribution presents results of measurements and evaluation of concentrations of nano- and microparticle aerosols in a joinery, metallurgical operation and uranium ore mine. The obtained results have been analyzed from the viewpoint of potential toxicity and in respect to the shape of nanoparticles. The contribution also presents results of tests of effectiveness of respirators as primary and basic personal protection equipment.