
An estimated 4.2 million deaths can be attributed to poor air quality each year. Poor air quality is the largest fixable environmental public health risk in the world.
Our new study presents analysis of the UK-wide trends for three major pollutants – nitrogen dioxide (NO₂), ozone (O₃) and tiny particulate matter known as PM₂.₅ – between 2015 and 2024 to calculate how often air quality targets were breached.