‘More women non-smokers are showing signs of lung cancer’
Fine particulate matter (PM2.5), tiny particles that are less than 2.5 micrometers in diameter, can penetrate deep into the lungs and enter the bloodstream, and long-term exposure to high levels of PM2.5 is associated with an increased risk of lung cancer. PM2.5 is primarily produced by vehicle emissions, industrial processes, power plants and residential heating.
