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Current levels
Current measured levels are shown in the table below - showing concentrations and, where applicable, the corresponding index and bands.
ยป Switch to the 24 hour summary
Key: n/m : not measured
| Monitoring site | 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
|---|---|---|---|---|---|
| Armagh Lonsdale Road Graph Updated: 22/04/2019 04:00 |
n/m | 7 Low (1) | n/m | n/m | 30 Low (2) |
| Ballymena Antrim Road Graph Updated: 22/04/2019 05:00 |
n/m | 9 Low (1) | n/m | n/m | n/m |
| Ballymena Ballykeel Graph Updated: 22/04/2019 04:00 |
n/m | 10 Low (1) | 6 Low (1) | n/m | 32 Low (2) |
| Belfast Centre Graph Updated: 22/04/2019 05:00 |
115 Moderate (4) | 9 Low (1) | 11 Low (1) | 29 Low (3) | 31 Low (2) |
| Belfast Newtownards Road Graph Updated: 22/04/2019 04:00 |
n/m | 8 Low (1) | n/m | n/m | n/m |
| Belfast Ormeau Road Graph Updated: 22/04/2019 04:00 |
n/m | 5 Low (1) | n/m | n/m | n/m |
| Belfast Stockman's Lane Graph Updated: 22/04/2019 04:00 |
n/m | 17 Low (1) | n/m | n/m | 31 Low (2) |
| Belfast Westlink Roden Street Graph Updated: 22/04/2019 04:00 |
n/m | 13 Low (1) | n/m | n/m | n/m |
| Castlereagh Dundonald Graph Updated: 22/04/2019 05:00 |
n/m | 13 Low (1) | n/m | n/m | n/m |
| Derry Dale's Corner Graph Updated: 22/04/2019 04:00 |
n/m | 7 Low (1) | n/m | n/m | n/m |
| Derry Rosemount Graph Updated: 22/04/2019 04:00 |
106 Moderate (4) | 7 Low (1) | 10 Low (1) | 12 Low (2) | 10 Low (1) |
| Downpatrick Roadside Graph Updated: 21/04/2019 24:00 |
n/m | 21 Low (1) | n/m | n/m | n/m |
| Limavady Dungiven Graph Updated: 30/06/2018 24:00 |
n/m | No data | n/m | n/m | n/m |
| Lisburn Dunmurry Seymour Hill Graph Updated: 22/04/2019 01:00 |
n/m | n/m | 0 Low (1) | n/m | 26 Low (2) |
| Lough Navar Graph Updated: 22/04/2019 05:00 |
96 Low (3) | n/m | n/m | 6 Low (1) | 8 Low (1) |
| Newry Canal Street Graph Updated: 22/04/2019 04:00 |
n/m | 13 Low (1) | n/m | n/m | 28 Low (2) |
| Newtownabbey Antrim Road Graph Updated: 22/04/2019 05:00 |
n/m | 21 Low (1) | n/m | n/m | n/m |
| North Down Holywood A2 Graph Updated: 22/04/2019 05:00 |
n/m | 0 Low (1) | n/m | n/m | 32 Low (2) |
| Strabane Springhill Park Graph Updated: 22/04/2019 04:00 |
n/m | n/m | 15 Low (1) | n/m | 16 Low (1) |
| Strathfoyle Bawnmore Place Graph Updated: 22/04/2019 04:00 |
n/m | n/m | n/m | n/m | 21 Low (2) |
