A new European Air Quality Index was launched in November by the European Environment Agency (EEA) and the European Commission, allowing users to check the current air quality across Europe’s cities and regions. The Index is accompanied by new country fact sheets that provide updated air quality information for EEA member countries. The Index consists of an interactive map that shows the local air quality situation at station level, based on five key pollutants that harm people’s health and the environment: particulate matter (PM2.5 and PM10), ground-level ozone (O₃), nitrogen dioxide (NO₂) and sulphur dioxide (SO₂).
Source: https://www.eea.europa.eu/