The asbestos mining, processing and processing of asbestos plates, asbestos tiles, and asbestos ropes are all exposed to asbestos dust. In particular, the asbestos processing industry in China is mostly decentralized by manual operations. The protective measures are poor, and the dust concentration is high during asbestos processing (especially dry production). In particular, hand-spun asbestos lines, asbestos ropes, or weaved asbestos fabrics cause more serious pollution. People's nostrils are less than one meter away from the spinning wheel, and in order to prevent asbestos fibers from being blown away, the workplace often closes the window and houses dust. Flying so that operators can inhale large amounts of asbestos dust for a long time can cause asbestos lungs. Pathogenesis and pathological changes The pathogenesis of asbestosis has not been studied clearly. In the past, the fibers of asbestos dust were generally considered to be long and sharp. After inhalation of respiratory tract, mechanical damage to the bronchial wall and alveolar wall can be caused. However, it is now believed that asbestos fibers that are inhaled are mainly deposited in the small bronchioles, alveolar spaces, and interstitial spaces of the lungs. Silicic acid forms hydrogen bonds with secondary lysosomal membranes, altering membrane permeability, and releasing hydrolytic enzymes. Into the cytoplasm, the macrophages disintegrate and die, resulting in fibrosis of the lung tissue. Asbestos fibers that have not been swallowed can also pass through the lung tissue to the pleura, causing pleural thickening or inflammation and mesothelioma. The basic pathological changes are characterized by diffuse pulmonary interstitial fibrosis, fibrotic pleura, fibrotic lesions, and the formation of "asbestos bodies," which is medically described as asbestosis. Clinical manifestations The onset of asbestos lungs, short time in the few years after exposure to asbestos dust, the elderly started only a decade or two ago, initially manifested as cough, chest tightness, shortness of breath, slightly white foam-like or mucous sputum, prone to cold, walk more or uphill When I feel difficulty in breathing, the severely ill will also experience dizziness, general weakness, loss of appetite and so on. Physical examination usually has lips purple cyanosis, clubbing, reduced breathing, decreased lung capacity, erythrocyte sedimentation rate, faster eel can be found in the "asbum body." Chest radiography was performed at this time. There was an irregular, small shadow in the lungs. Emphysema and pleural changes were quite obvious. The common complications of asbestosis include respiratory tract infections, bronchiectasis, tuberculosis, etc. Individual patients may be associated with lung cancer and pleural mesothelioma, asbestos ridge, contact dermatitis, and the like. treatment There is no specific therapy for asbestos lungs, and they can only be treated symptomatically. The most fundamental aspect of treating asbestos lungs is protection. The basic method of preventing asbestos damage 1. Replace asbestos with materials that are non-toxic or less toxic, and do not use asbestos. Eliminate contact with asbestos and prevent the occurrence of asbestos lungs. 2. The process is changed from dry to wet production. If conditions permit, the floor can be washed frequently to reduce secondary dust. Even if it is not wet operation, it is necessary to use partial extraction type ventilation dust removal equipment to minimize the dust concentration in the working environment. Absolutely can not be engaged in asbestos processing and production without protective measures. 3. Asbestos-induced lung cancer and mesothelioma were classified as occupational tumors in China in 1987. The relevant departments also established a number of laws and regulations to prevent asbestos damage. China's industrial and mining hygiene standards stipulate that the concentration of dust in the air of asbestos dust and asbestos in the workshop should not exceed 2 mg/m3. 4. Strengthen personal protection: Workers wear work clothes, hats and dust masks when operating. It is best to change the gauze mask for a long time, and the overalls and hat should be washed frequently. Workplace smoking, eating and drinking are prohibited. Usually eat more foods that are good for driving dust, such as pig blood, seaweed, lotus root, pear, white radish, and mangosteen. Shower Outlet,Shower Wall Outlet,Shower Outlet Fitting,Shower Hose Outlet Moon Shower Sanitaryware Co.,Ltd , https://www.moonshowerglobal.com
