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Non-smokers suffer from lung cancer due to air pollution

The link between smoking and an increased risk of lung cancer is well recognised. However, according to the Centers for Disease Control and Prevention, 10% to 20% of lung cancer cases involve individuals who have never smoked or smoked fewer than 100 cigarettes in their lives. Researchers wanted to know how air pollution can cause non-small cell lung cancer in people who have never smoked. They discovered that breathing in small particulate matter leads to lung inflammation and the formation of tumours in lung cells that already have mutations. The discovery emphasises the significance of lowering air pollution for human health and may open the door for novel approaches to the prevention of lung cancer.

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