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| courtesy svgsilh.com |
Although smoking is the cause of lung cancer, but not all cases of lung cancer occur in smokers or ex-smokers. Some cases of lung cancer may also occur in people who do not smoke.
Some conditions and circumstances have been proven to increase the risk of non-smokers can be exposed to lung cancer. Including:
Passive smoker
Passive smoker, or inhaling tobacco smoke from other smokers, is a risk factor for lung cancer. Non-smokers who live with smokers have an increased risk of 24 percent to be exposed to lung cancer, when compared with other non-smokers. Every year, up to 3,000 deaths from lung cancer are expected to occur in the United States caused by passive smokers.
Gases Radon
Gases that are formed naturally when uranium decay, is another cause of known lung cancer. Estimated, 12 percent of the total deaths due to lung cancer in smokers and nonsmokers, it is believed to be at least partially associated with exposure to radon gases.
Those who smoke and also are exposed to radon have even greater risks of developing lung cancer, than non-smokers who are exposed to radon gases. Radon gases can move through the soil and enter the house through gaps in foundations, pipes, drains, or other holes. The radon gases are invisible as well as odorless but can be detected with a simple test tool.
Asbestos
Asbestos is a widely used compound in the past for thermal and acoustic insulation materials. The microscopic fibers of asbestos can be detached from the insulation material and fly into the air where they can be inhalation to the lungs. Asbestos fibers can last a lifetime in lung tissue after exposure to asbestos.
Both lung cancer as well as the type of cancer known as mesothelioma are associated with asbestos exposure. Smoking drastically increases the likelihood of developing lung cancer associated with asbestos among workers exposed to asbestos. Nevertheless, asbestos workers who smoke have a risk of five times greater exposure to lung cancer than other non-smokers.
Descent
Because not all smokers are eventually exposed to lung cancer, possibly other factors, such as individual genetic vulnerabilities, can play a role in the cause of lung cancer. A number of studies have shown that lung cancer is more likely to occur in brothers who smoke and who do not smoke from those suffering from lung cancer than the general population.
Air pollution
Air pollution from vehicles, industries, and power plants can increase the likelihood of developing lung cancer in exposed individuals. It is estimated that up to 2,000 deaths from lung cancer per year may be caused by breathing polluted air, and many experts believe that prolonged contact with highly polluted air may bring risks to its growth Lung cancer as well as passive smoking.
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