Lung cancer is the leading cancer worldwide in terms of incidence and mortality. Although lung cancer remains the leading cause of cancer-related mortality in the United States, its incidence is decreasing . It may due to better prevention, awareness and early detection. Tobacco use is the main risk factor for lung cancer. Radon, arsenic, asbestos, heavy metals-chromium VI, nickel, cadmiumcoke oven and coal gasification fumes and soot are well-known lung carcinogens. Several studies reported that high fat consumption increases the risk of lung cancer. Exposure to incense smoke and exposure to fry pan fumes were associated with a higher risk for lung cancer due to the presence of combustion-related carcinogens. Another study showed that heavy pesticide usage was associated with increase of lung cancer.
Last date updated on September, 2014