Worst air pollution Portadown, today and tomorrow
Today (16 July): Air quality in Portadown 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: 28.5/100).
Tomorrow (17 July 2026): Air quality in Portadown is fair. All pollutants stay as today. Pollution peaks around 4:00 AM (O3: 28.5/100). 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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Portadown's position in Armagh City, Banbridge and Craigavon means air quality is mostly determined by local road traffic and the compact scale of the centre. The prevailing Atlantic airflow do most of the work keeping things in check, more so than any local policy or infrastructure change. Commuter traffic feeding onto the A1 adds a further, consistent contribution to local readings.
Today - 16 July | Pollution peaks at 00:00
AQI:
Fair
28.5/100
PM2.5 (fine particles):
Good
16.8/100
PM10 (coarse particles):
Good
6.3/100
NO2 (nitrogen dioxide):
Good
1.2/100
O3 (ozone):
Fair
28.5/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
13.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 04:00
AQI:
Fair
28.5/100
PM2.5 (fine particles):
Good
18.6/100
PM10 (coarse particles):
Good
7.0/100
NO2 (nitrogen dioxide):
Good
1.4/100
O3 (ozone):
Fair
28.5/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.0/100
PM1 (ultrafine particles):
Good
14.1/100
Pollen forecast in Portadown
View pollen forecastFrequently Asked Questions
Is air quality bad in Portadown right now?
On 16 July 2026, overall air quality in Portadown is fair. AQI is the main air quality indicator at 28.5/100. Pollution peaks around 12:00 AM (O3: 28.5/100).
Will air quality be worse tomorrow in Portadown?
On 17 July 2026, air quality conditions in Portadown will be similar to today, with AQI forecast at fair at 28.5/100. Pollution peaks around 4:00 AM (O3: 28.5/100).
When is air pollution at its worst in Portadown?
There's a clear yearly cycle to air quality in Portadown if you look closely. In deep winter, a lack of wind lets A1 traffic fumes and woodsmoke settle instead of blowing through. 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. Spring and autumn are typically the easiest months, air-quality-wise, for most residents.
Are air quality levels in Portadown 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