Worst air pollution Denbigh, today and tomorrow

Today (16 July): Air quality in Denbigh is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 28.4/100).
Tomorrow (17 July 2026): Air quality in Denbigh is fair. All pollutants stay as today. Pollution peaks around 2:00 PM (O3: 29.3/100). 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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The air quality picture in Denbigh reflects a typical Denbighshire town, with traffic emissions and local commercial activity as key contributors. The nearby A470 corridor contributes steady vehicle emissions that affect roadside readings. Prevailing westerlies do most of the work keeping things in check, more so than any local policy or infrastructure change.

Today - 16 July | Pollution peaks at 15:00

AQI:

Fair

28.4/100

PM2.5 (fine particles):

Good

10.1/100

PM10 (coarse particles):

Good

3.5/100

NO2 (nitrogen dioxide):

Good

6.6/100

O3 (ozone):

Fair

28.4/100

SO2 (sulfur dioxide):

Good

1.6/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

1.8/100

PM1 (ultrafine particles):

Good

7.8/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 14:00

AQI:

Fair

29.3/100

PM2.5 (fine particles):

Good

13.4/100

PM10 (coarse particles):

Good

4.8/100

NO2 (nitrogen dioxide):

Good

8.8/100

O3 (ozone):

Fair

29.3/100

SO2 (sulfur dioxide):

Good

2.5/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.1/100

PM1 (ultrafine particles):

Good

10.7/100

Pollen forecast in Denbigh

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Frequently Asked Questions

Is air quality bad in Denbigh right now?

On 16 July 2026, overall air quality in Denbigh is fair. AQI is the main air quality indicator at 28.4/100. Pollution peaks around 3:00 PM (O3: 28.4/100).

Will air quality be worse tomorrow in Denbigh?

On 17 July 2026, air quality conditions in Denbigh will be similar to today, with AQI forecast at fair at 29.3/100. Pollution peaks around 2:00 PM (O3: 29.3/100).

When is air pollution at its worst in Denbigh?

The shoulder seasons generally bring the mildest readings of the year. In Denbigh, pollution levels don't stay flat — winter and summer look pretty different. Through the colder months, readings near the A470 often rise, since chimney smoke and stagnant air stop pollutants clearing away. Summer brings a different issue — stronger sunlight can push up ozone levels on hot, sunny days, even though traffic pollution itself often disperses more easily.

Are air quality levels in Denbigh 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