What is Occupational Lung Disease?

Occupational Lung Disease can best be defined as complications of the human lung(s) that arise out of the exposure to hazardous chemicals and/or conditions in the workplace.

Here are most of the types of Occupational Lung Disease:

Occupational Lung Cancer is caused by breathing in carcinogens like coal, asbestos, and petroleum-related carbon compounds. A wide range of occupational areas are affected. The ALA estimates that this disease can be attributed to over 15,000 deaths a year.

Coal workers' pneumoconiosis, or "Black Lung Disease," is caused by the inhalation of coal dust from a coal mine. Pneumoconiosis is not reversible. There are two stages to this disease, simple pneumoconiosis and complicated pneumoconiosis. Simple pneumoconiosis does not affect working or the carrying on of most normal activity. In some miners the disease becomes more severe, entering the complicated stage. Complicated pneumoconiosis, or Progressive Massive Fibrosis, is more likely to be disabling of normal function. This disease generally affects coal miners. The American Lung Association [ALA] estimates that just under 1,000 people die from this disease every year.

Asbestosis, or a progressive form of the exposure to asbestos fibers in asbestos, is a disease that creates scarred lungs. This disease generally affects construction workers. The ALA estimates just over 200 deaths per year as a result of this condition.

Byssinosis, or "Brown Lung Disease," is a condition that is created by blocked airways, which creates a major problem to the normal function of the lungs. The dusts from cotton processing, flax, and hemp cause this condition. This disease generally affects textile workers. The ALA estimates that about 10 people a year die from this disease.

Silicosis is a condition that arrises as a result of long-term exposure to free crystalline silica that resides in a variety of locations, including mines, foundries, stone/clay/glass manufacturing, and blasting operations. It can be noted that Silicosis increases the risk of additional lung conditions to develop, particularly tuberculosis. This condition affects foundry, manufacturing, and blasting workers mostly. The ALA notes just under 200 deaths a year as a result of this disease.

Occupational Asthma, are asthmatic attacks triggered by the exposure of dusts, vapors, gases or fumes. These cases represent about 15% of adult asthma cases. This disease affects those that have pre-dispositions towards being asthmatic and around these substances. The ALA does not estimate the number of deaths per year.

Hypersensitivity pneumonitis is the result of the breathing in of bird droppings, fungus from moldy hay, or other organic dusts. After repreated exposure, inflamation occurs in the lung's air sacts. This could start a building-up of fibrous scar tissue in the lung itself. Parts of the lungs may then cease to function normally. The ALA does not estimate the number of deaths per year.



Sources:

Occupational Lung Disease Sources

American Lung Association website
[http://www.lungusa.org/diseases/occupational_factsheet.html]


Coal workers' pneumoconiosis Sources

Center for Disease Control website
[http://www.cdc.gov/niosh/blung_q2.html]

National Library of Medicine website
[http://www.nlm.nih.gov/medlineplus/ency/article/000130.htm#contentDescription]


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Jeff W. Selby, MD
occdoc@occupationallung.com


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