​World lung cancer day 2023: A persistent cough can be due to lung cancer; know the other early signs of one of the most common forms of cancer in the country​ | The Times of India

“Cigarette smoking is the leading cause of lung cancer. Tobacco smoke contains numerous carcinogens (cancer-causing substances) that damage the cells lining the lungs. Smokers are at a much higher risk of developing lung cancer compared to non-smokers. Additionally, exposure to secondhand smoke can also increase the risk, albeit to a lesser extent,” says Dr Singh. He also mentions prolonged exposure to radon which is a naturally occurring radioactive gas that can seep into buildings, particularly homes, from the ground. increases the risk of lung cancer, especially in smokers.

Dr Singh mentions about certain occupations, such as construction, mining, and manufacturing, that may expose individuals to harmful substances like asbestos, arsenic, chromium, nickel, and diesel exhaust. Prolonged exposure to these substances can elevate the risk of lung cancer, he says.

Air pollution, a subject of national concern, is also a contributing factor for lung cancer says Dr Singh. “Long-term exposure to air pollution, including particulate matter, chemicals, and industrial emissions, can contribute to the development of lung cancer, especially in urban areas with high pollution levels,” he adds.

Apart from this, genetic factors, exposure to radiation, and having a family history of lung cancer also increases one’s risk of developing lung cancer.