Air quality has become one of the most pressing environmental challenges facing Sri Lanka
Air quality has become one of the most pressing environmental challenges facing Sri Lanka. With rising vehicle numbers, industrial activity and urbanisation, our cities are experiencing higher levels of pollutants that threaten both public health and the environment. Two of the most harmful pollutants commonly found in vehicle emissions are PM2.5 and NOx. Understanding what these pollutants are, where they come from and how they impact our lives is the first step toward cleaner air. What is PM2....














