What is the air quality in Bolton?

Bolton, United Kingdom has an annual US AQI of 54 (Reasonable) and average PM2.5 of 11.4 µg/m³, ranking #1201 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Bolton?

August is typically the cleanest month (AQI 45) and March the most polluted (AQI 61).

PM2.5: 1998–2024 (satellite). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

Global rank	City	Continent	AQI	PM2.5
1201	Bolton, United Kingdom	Europe	AQI 54	PM2.5 11.4 µg/m³