Worst air pollution Killyleagh, today and tomorrow

On 9 August 2026, overall air quality in Killyleagh is fair. AQI is the main air quality indicator at 25.6/100. Pollution peaks around 1:00 PM (O3: 25.6/100).

On 10 August 2026, air quality conditions in Killyleagh will be better than today, with AQI forecast at good at 17.8/100. Pollution peaks around 11:00 PM (O3: 17.8/100).

Spring and autumn tend to be the calmer, more moderate stretches by comparison. You can roughly predict Killyleagh's air quality just by knowing the time of year. Winter tends to be worst, with wood burning, home heating, and still, cold air trapping traffic fumes from the A26 closer to ground level. Warmer months swap one problem for another — less smoke and heating pollution, but more ozone on the sunniest days.

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.

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.