CORDIS-JRC

We are all exposed to polluted air. Among main air pollutants are nitrogen oxides—the so-called ‘NOx ‘— and ozone, which cause irritation of respiratory tract and eyes, favouring cough, lung infections in children and asthma. As for particles emitted by transports, heating or agriculture, there is a real concern for what are referred to as ‘PM 2.5’—which is short for particles 2.5 millionths of a meter in diameter. Indeed, their small size allows them to penetrate deeply into the lungs. They can reach as far as the blood circulation system, thus enhancing cardiovascular risk.