What is the air quality in Preston?

Preston, United Kingdom has an annual US AQI of 49 (Reasonable) and average PM2.5 of 10.1 µg/m³, ranking #714 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Preston?

July is typically the cleanest month (AQI 40) and March the most polluted (AQI 59).

Where does Preston's air quality data come from?

PM2.5: 1998–2026 (monitors 2009–2026, satellite 1998–2009, 2013–2014; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

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

Preston Air Quality Data

Global rank	City	Continent	AQI	PM2.5
714	Preston, United Kingdom	Europe	AQI 49	PM2.5 10.1 µg/m³