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Silicosis: A famous Pneumoconiosis disease

SilicosisAir pollution by particles can be caused by natural events and can also be caused by human activity, through the activities of industry and technology. There are many kinds of particle that pollutes the air. In general, particles that pollute the air can damage the environment, plants, animals and humans. The particles are very harmful to human health. The air that has been polluted by particles can cause various respiratory diseases or pneumoconiosis. At a time when people breathe in, air containing particles would be inhaled into the lungs. Size of particles (dust) that go into the lungs would determine the position of the attachment or deposition of these particles. Particle size that is less than five microns would be retained in the upper respiratory tract, whereas the particle size of three to five microns would be stuck in the middle part of the respiratory tract. Particles that are smaller, one to three microns would go into the air sacs of the lungs, attached to the alveoli. Even smaller particles, less than 1 micron, would drop out when the breath is exhaling.

Pneumoconiosis is a respiratory illness that is caused by particles (dust) that enter or settle in the lungs. Pneumoconiosis diseases is depending on the type of particles (dust) entering or that is inhaled into the lungs. One of famous pneumoconiosis diseases is silicosis. Silicosis is a disease caused by silica dust pollution-free, such as SiO2, which is inhaled into the lungs and then the precipitate. Free silica dust is abundant in iron and steel, ceramics, concrete casting, metal working workshop (filing, grinding, etc.). Apart from that, the silica dust is also widely available in mining. The use of coal as a fuel also generates a lot of free silica dust, SiO2. Silica dust would come out and dispersed into the air together with other particles, such as alumina, iron oxide and carbon in the form of ash.

Silica dust that enters the lungs will have an incubation period of about two to four years. The incubation period would be shorter, or symptoms of silicosis disease would appear soon, if the silica concentration in the air is quite high and is inhaled into the lungs in large quantities. Silicosis disease is characterized by shortness of breath accompanied by coughing. Preventive action is more important and significant than the actions of treatment.

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