1. pneumoconiosis Pneumoconiosis is a kind of disease caused by inhalation of productive dust in the process of production. Due to the different quality and quantity of dust inhalation, different degrees of harm will occur. There are many kinds of pneumoconiosis, among which 12 are classified as industrial diseases, they are: silicosis, coal worker's pneumoconiosis, graphite pneumoconiosis, carbon black pneumoconiosis, asbestos lung, talcum lung, cement lung, mica lung, Potter's pneumoconiosis, aluminum pneumoconiosis, welding mixed pneumoconiosis, casting worker's pneumoconiosis. The manufacturer of cup respirator mentioned that the chemical composition of dust is one of the main factors to determine its harm to human body. To understand the harm of dust, it is necessary to know whether the dust is rich in toxic substances, radioactive substances and free silica. Because the higher the content of free silica in dust, the more inhaled the body, the faster the development of lesions, the more severe the degree of fibrosis. Hazards of different types of dust to human body:
(1) Silica dust, rich in free silica dust, such as quartz, can cause pulmonary fibrosis after inhalation.
(2) Asbestos dust can attack asbestosis and induce lung cancer and stromal tumor.
(3) Radioactive dust, such as uranium ore dust, can cause radiation damage and lung cancer.
(4) Toxic dust, such as lead dust, cadmium, manganese, chromium and other metal dust, can cause various poisoning manifestations.
(5) Harmful dust, such as coal dust and cement dust, can cause pulmonary fibrosis.
2. Dust calmness It is found that some metal (iron, barium, tin, etc.) dust can react with foreign matters in lung tissue after inhalation, and continue to cause slight fibrosis, but it is less harmful to human body. After operation without dust, the lesions can gradually weaken.
3. Tumor of respiratory system Part of the role of dust refers to the role of dust in the respiratory mucosa leading to atrophic lesions; in addition, it can also form pharyngitis, laryngitis, tracheitis, etc.; in the skin can form acne, folliculitis, pyoderma, etc.; metal and abrasive dust can cause damage to the cornea, resulting in dull touch and turbid cornea; asphalt smoke can cause light rational dermatitis under sunlight. The toxic effect of dust found by cup respirator manufacturers refers to the toxic scene caused by inhalation of lead, arsenic, manganese and other toxic dust.
4. Lung diseases caused by organic dust Organic dust includes plant, animal and artificial organic dust. Common are cotton, tobacco, flour, sawdust, fuzz, fur, fuel, plastic, asphalt and so on. Different organic dusts have different biological effects, such as bronchial asthma, cotton dust, work allergic pneumonia, mixed pneumoconiosis, etc.