Tar and nicotine Cancer that develops in the lining of the lungs, or peritoneum, accounts for most cases of non-smokers’ lung cancer. It accounts for nearly half of all cases of non-small cell lung cancer, according to the American Cancer Society. The lining of the lungs is actually very thin but there are certain compounds that can make it much thicker. These compounds include non-aldehyde compounds and certain carcinogens, such as tar and nicotine. Tar and nicotine are both significant contributors to non-smoker lung cancer.
Toxins Not all causes are related to smoking, either. In fact, some seem to be caused by exposure to toxins in soil, air, or water, which many people are not aware of. As a result, there are a number of environmental toxins that increase a person’s risk factors for this condition. These include lead, arsenic, cysts, chlorine, radon, cigarette smoke, and other chemicals that the United States Environmental Protection Agency estimates are present in at least 25% of American homes