[Work hygiene of miners engaged in mining and processing of sand and gravel mixtures]

The main hazardous occupational factors in sand and gravel mixture processing include siliceous dust contamination of the air, noise, vibration, intensive labour overload, and unfavourable microclimate conditions. The workers examined displayed exceeding general and occupational health disorders (silicosis, silicotuberculosis, dust bronchitis, cohlear neuritis).