[Topical aspects of occupational hygiene in the manufacture of novel types of periclase carbon refractory bricks].

Comprehensive hygienic studies conducted at the Pervouralsk plant of refractory materials at the section of spinel periclasocarbonated refractory materials in the workshops for preparing and pressing refractory mass have shown that silicon-containing dust that is a mixture of various chemicals entering the air of a working area. In the refractory mass preparation workshop, the concentrations of a number of substances, such as magnesium oxide, phenol, formaldehyde, exceed their maximum allowable levels. In the pressing workshop, the workers are exposed to high noise levels. The working process in the study workshops is considered to be rough labor.