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Pneumoconiosis

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Submitted By jlcantu13
Words 1206
Pages 5
Jorge Cantu
RSPT 2310 Mr. Ramos
3/4/14
Pneumoconiosis

Pneumoconiosis can be interpreted as the accumulation of dust in the lungs and the tissue’s reaction to its habitation. It is considered to be an occupational lung disease caused by the long-term exposure to dust. There are several interstitial lung diseases caused by the inhalation of certain dusts. The primary cause of the pneumoconioses is work-place exposure; environmental exposures rarely give rise to these diseases. Pneumoconiosis refers to a range of diseases that are caused by the inhalation of a range of organic and non-organic dusts which are then retained in the lungs. The main types of pneumoconiosis are: Asbestosis, Berylliosis , Byssinosis, Coal Worker’s Pneumoconiosis (also known as “black lung”), Kaolin Pneumoconiosis, Siderosis, and Silicosis. The most common type of pneumoconiosis is Coal Worker’s Pneumoconiosis (CWP). The Black lung is actually a set of conditions and it wasn’t till the 1950s that its dangers were not well understood. There are currently about 130,000 underground coal miners that are currently working in the United States. Mining and the production of coal is a large part of the economy in several developed countries therefore, leaving thousands of American miners dead from CWP. Even though this disease is preventable by using the appropriate safety equipment, there are still many miners that end up developing advanced and severe cases of the disease. The coal dust itself is not as fibrogenic as silica dust is. Once the coal dust enters the lungs it can neither be destroyed nor removed by the body. When the coal dust is inhaled it reaches the terminal bronchioles, then is engulfed by alveolar and interstitial macrophages. The phagocytosed coal particles are then transported by the macrophages up the mucociliary elevator and are expelled with mucus or even through the

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