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The World Health Organization breaks down the three types of carcinogens that can cause cancer in humans. The first type of carcinogen is the physical type which can be ultraviolet and ionizing radiation. The second type of carcinogens is defined as asbestos, tobacco smoke, alcohol, aflatoxin, and arsenic.
Asbestos can cause lung cancer that is identical to lung cancer from other causes. Exposure to asbestos is associated with all major histological types of lung carcinoma (adenocarcinoma, squamous cell carcinoma, large-cell carcinoma and small-cell carcinoma). The latency period between exposure and development of lung cancer is 20 to 30 years.
White asbestos fibers identified in room air analysis, magnified 5000 times using a scanning electron microscope. The cause of asbestosis is the inhalation of microscopic asbestos mineral fibers suspended in the air. [17] In the 1930s, E. R. A. Merewether found that greater exposure resulted in greater risk. [18]
Mesothelioma that affects the pleura can cause these signs and symptoms: [15] Chest wall pain; Pleural effusion, or fluid surrounding the lung; Shortness of breath – which could be due to a collapsed lung or the pleural effusion; Fatigue or anemia; Wheezing, hoarseness, or a cough; Blood in the sputum (fluid) coughed up
Asbestos warning label. Figure A shows the location of the lungs, airways, pleura, and diaphragm in the body. Figure B shows lungs with asbestos-related diseases, including pleural plaque, lung cancer, asbestosis, plaque on the diaphragm, and mesothelioma. Left-sided mesothelioma (seen on the right of the picture): chest CT
Workers are frequently exposed to asbestos during demolition and renovation work, which can cause asbestosis and/or mesothelioma. Asbestos exposure can also cause pleural effusion, diffuse pleural fibrosis, pleural plaques, and non-mesothelioma lung cancer. Smoking greatly increases the lung cancer risk of asbestos exposure. [3]
Interventions in areas where asbestos is present often have to follow stringent procedures. Asbestos is a known carcinogen. [5] It is the primary risk factor for mesothelioma, a cancer of the lining of the lungs. [6] It may cause other lung cancers and respiratory diseases such as asbestosis. [7]
Asbestos (/ æ s ˈ b ɛ s t ə s, æ z-,-t ɒ s / ass-BES-təs, az-, -toss) [1] is a group of naturally occurring, toxic, carcinogenic and fibrous silicate minerals.There are six types, all of which are composed of long and thin fibrous crystals, each fibre (particulate with length substantially greater than width) [2] being composed of many microscopic "fibrils" that can be released into ...