Danger of Asbestos on Human Health
Incidence rate of lung was increased in workers exposed to some form of nickel, chromium, and asbestos. Asbestos is widely used as materials for roofing (tile) and insulation, asbestos cement, brake linings, electrical devices, and fire-resistant materials and packaging materials. Asbestos is the common name of a group of natural silicates which will split into flexible fibers. Exposure can come from natural sources and industrial use. There are two types of fiber flcksibel, krisotil and krosidolit. Krisotil (3MgO.2SiO, .2 H2O) is a species of great importance in world trade and 90% of it consists of asbestos. Krosidolit (blue asbestos) is composed of rod-shaped fibers are short and more dangerous than krisotil fiber.
System disease caused by exposure to asbestos exposure include asbestosis, lung cancer, and mesothelioma. Other cancers associated with exposure to asbestos is a cancer of the larynx, esophagus, stomach, colon-rectum, and possibly pancreatic cancer.
Asbestosis is pulmonary fibrosis that develops slowly due to high concentrations of asbestos dust inhalation or due to long exposure. Its severity depends on the time span between the onset (initial) exposure and its intensity, and asbestosis is often associated with advanced lung cancer, especially among smokers.
Pleural mesothelioma is a rare type of cancer. Increased incidence of mesotheliomas associated with inhalation of asbestos fibers in the workplace. Although a little early symptoms, mesothelioma can be cured if successfully diagnosed. The time between first exposure to asbestos and the appearance of signs of tumors ranging from 20 to 50 years, specifically mesothelioma. A rise in the incidence of mesothelioma is also seen in people who, although not exposed to occupational, he lived at home with asbestos workers or living near a strong source of asbestos emissions Although asbestos is no longer used as an insulator, this substance is still in the spotlight because of the danger that comes from building its use of asbestos insulation.