Worst air pollution Ruthin, today and tomorrow
Today (16 July): Air quality in Ruthin 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 Ruthin 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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Like much of Denbighshire, Ruthin's air quality is shaped less by industry these days and more by everyday road traffic. Rush-hour queues near the A40 are usually when readings climb the most. Residential heating and light industry add a modest seasonal contribution, though cooler northerly winds keep overall levels moderate.
Today - 16 July | Pollution peaks at 15:00
AQI:
Fair
28.4/100
PM2.5 (fine particles):
Good
11.4/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Good
10.8/100
O3 (ozone):
Fair
28.4/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.8/100
PM1 (ultrafine particles):
Good
8.8/100
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
15.1/100
PM10 (coarse particles):
Good
5.4/100
NO2 (nitrogen dioxide):
Good
14.5/100
O3 (ozone):
Fair
29.3/100
SO2 (sulfur dioxide):
Good
4.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.1/100
PM1 (ultrafine particles):
Good
12.1/100
Pollen forecast in Ruthin
View pollen forecastFrequently Asked Questions
Is air quality bad in Ruthin right now?
On 16 July 2026, overall air quality in Ruthin 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 Ruthin?
On 17 July 2026, air quality conditions in Ruthin 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 Ruthin?
Spring and autumn usually sit somewhere in between, so it's really the extremes of the year worth watching. You can roughly predict Ruthin's air quality just by knowing the time of year. The coldest months usually bring the worst readings, as heating and temperature inversions keep A40 emissions from dispersing normally. By summer, ozone tends to rise on bright days, while better ventilation generally keeps particulate and NO₂ levels lower than winter.
Are air quality levels in Ruthin 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.
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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