Worst air pollution Knaresborough, today and tomorrow

Today (16 July): Air quality in Knaresborough is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 AM (O3: 28.7/100).
Tomorrow (17 July 2026): Air quality in Knaresborough is fair. All pollutants stay as today. Pollution peaks around 6:00 AM (O3: 28.1/100). Airmine updates local air quality forecasts four times daily.

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Being part of North Yorkshire, Knaresborough sees an air quality profile that's largely down to traffic and general town-centre activity. Traffic on the A47 is the most significant local emissions source, especially at peak times. Moist Atlantic fronts help ventilate the town centre, keeping air quality at moderate levels typical for the region.

Today - 16 July | Pollution peaks at 00:00

AQI:

Fair

28.7/100

PM2.5 (fine particles):

Good

17.2/100

PM10 (coarse particles):

Good

6.5/100

NO2 (nitrogen dioxide):

Good

2.0/100

O3 (ozone):

Fair

28.7/100

SO2 (sulfur dioxide):

Good

1.7/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.9/100

PM1 (ultrafine particles):

Good

13.5/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 06:00

AQI:

Fair

28.1/100

PM2.5 (fine particles):

Good

18.8/100

PM10 (coarse particles):

Good

7.0/100

NO2 (nitrogen dioxide):

Good

1.6/100

O3 (ozone):

Fair

28.1/100

SO2 (sulfur dioxide):

Good

1.4/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

1.1/100

PM1 (ultrafine particles):

Good

15.2/100

Pollen forecast in Knaresborough

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Frequently Asked Questions

Is air quality bad in Knaresborough right now?

On 16 July 2026, overall air quality in Knaresborough is fair. AQI is the main air quality indicator at 28.7/100. Pollution peaks around 12:00 AM (O3: 28.7/100).

Will air quality be worse tomorrow in Knaresborough?

On 17 July 2026, air quality conditions in Knaresborough will be similar to today, with AQI forecast at fair at 28.1/100. Pollution peaks around 6:00 AM (O3: 28.1/100).

When is air pollution at its worst in Knaresborough?

There's a clear yearly cycle to air quality in Knaresborough if you look closely. Winter tends to be worst, with wood burning, home heating, and still, cold air trapping traffic fumes from the A47 closer to ground level. Summer sunshine can drive up ozone locally, though overall air generally moves and clears more freely than in winter. For much of spring and autumn, things settle into a fairly unremarkable middle ground.

Are air quality levels in Knaresborough based on measurements or forecasts?

It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.

Want to see air quality forecasts for other cities in United Kingdom?

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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)

This forecast is produced independently using Airmine's own atmospheric data and models.

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

For long term forecasts and maps, see the Airmine app