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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: 24/09/2017 07:00 |
n/m | 7 Low (1) | n/m | n/m | 4 Low (1) |
| Ballymena Antrim Road Graph Updated: 24/09/2017 07:00 |
n/m | 24 Low (1) | n/m | n/m | n/m |
| Ballymena Ballykeel Graph Updated: 24/09/2017 07:00 |
n/m | 9 Low (1) | 2 Low (1) | n/m | 18 Low (2) |
| Belfast Centre Graph Updated: 24/09/2017 07:00 |
61 Low (2) | 19 Low (1) | 3 Low (1) | 9 Low (1) | 21 Low (2) |
| Belfast Newtownards Road Graph Updated: 24/09/2017 04:00 |
n/m | 2 Low (1) | n/m | n/m | n/m |
| Belfast Ormeau Road Graph Updated: 24/09/2017 05:00 |
n/m | 4 Low (1) | n/m | n/m | n/m |
| Belfast Stockman's Lane Graph Updated: 24/09/2017 07:00 |
n/m | 49 Low (1) | n/m | n/m | 25 Low (2) |
| Belfast Westlink Roden Street Graph Updated: 24/09/2017 05:00 |
n/m | 4 Low (1) | n/m | n/m | n/m |
| Castlereagh Dundonald Graph Updated: 24/09/2017 07:00 |
n/m | 16 Low (1) | n/m | n/m | n/m |
| Derry Dale's Corner Graph Updated: 24/09/2017 04:00 |
n/m | 8 Low (1) | n/m | n/m | n/m |
| Derry Rosemount Graph Updated: 24/09/2017 07:00 |
53 Low (2) | 6 Low (1) | No data | 4 Low (1) | 6 Low (1) |
| Downpatrick Roadside Graph Updated: 24/09/2017 04:00 |
n/m | 11 Low (1) | n/m | n/m | n/m |
| Limavady Dungiven Graph Updated: 24/09/2017 08:00 |
n/m | 54 Low (1) | n/m | n/m | n/m |
| Lisburn Dunmurry Seymour Hill Graph Updated: 24/09/2017 02:00 |
n/m | n/m | 0 Low (1) | n/m | 16 Low (1) |
| Lough Navar Graph Updated: 24/09/2017 07:00 |
27 Low (1) | n/m | n/m | n/m | 5 Low (1) |
| Newry Canal Street Graph Updated: 24/09/2017 04:00 |
n/m | 6 Low (1) | n/m | n/m | 17 Low (2) |
| Newtownabbey Antrim Road Graph Updated: 24/09/2017 06:00 |
n/m | 17 Low (1) | n/m | n/m | n/m |
| North Down Holywood A2 Graph Updated: 24/09/2017 07:00 |
n/m | 3 Low (1) | n/m | n/m | 18 Low (2) |
| Strabane Springhill Park Graph Updated: 24/09/2017 04:00 |
n/m | n/m | 13 Low (1) | n/m | 9 Low (1) |
