What is the air quality in Norwich?

Norwich, United Kingdom has an annual US AQI of 53 (Reasonable) and average PM2.5 of 11.3 µg/m³, ranking #1116 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Norwich?

July is typically the cleanest month (AQI 46) and March the most polluted (AQI 62).

Where does Norwich's air quality data come from?

PM2.5: 1998–2026 (monitors 2009–2026, satellite 1998–2009, 2016; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Norwich, United Kingdom — Air Quality & Clean City Guide 2026

Norwich Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1116	Norwich, United Kingdom	Europe	AQI 53	PM2.5 11.3 µg/m³