Pneumoconiosis refers to a disease characterized by pulmonary fibrosis caused by inhalation of productive dust during the production process. A different degree of damage occurs because the quality and amount of inhaled dust are different. There are many varieties of pneumoconiosis, among which 12 are classified as occupational diseases. They are: silicosis, coal worker's pneumoconiosis, graphite pneumoconiosis, carbon black pneumoconiosis, asbestosis lung, talc lung, cement lung, mica lung, potter's pneumoconiosis, aluminum pneumoconiosis, electric welding. Mixed pneumoconiosis, castor pneumoconiosis.