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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
| 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: 22/07/2017 11:00 |
No data | 18 Low (1) | No data | No data | 5 Low (1) |
| Ballymena Antrim Road Graph Updated: 22/07/2017 12:00 |
No data | 5 Low (1) | No data | No data | No data |
| Ballymena Ballykeel Graph Updated: 22/07/2017 12:00 |
No data | 11 Low (1) | 1 Low (1) | No data | 13 Low (1) |
| Belfast Centre Graph Updated: 22/07/2017 12:00 |
53 Low (2) | 9 Low (1) | 13 Low (1) | 7 Low (1) | 8 Low (1) |
| Belfast Newtownards Road Graph Updated: 22/07/2017 05:00 |
No data | 13 Low (1) | No data | No data | No data |
| Belfast Ormeau Road Graph Updated: 22/07/2017 05:00 |
No data | 11 Low (1) | No data | No data | No data |
| Belfast Stockman's Lane Graph Updated: 22/07/2017 12:00 |
No data | 32 Low (1) | No data | No data | 11 Low (1) |
| Belfast Westlink Roden Street Graph Updated: 22/07/2017 05:00 |
No data | 36 Low (1) | No data | No data | No data |
| Castlereagh Dundonald Graph Updated: 22/07/2017 10:00 |
No data | 12 Low (1) | No data | No data | No data |
| Derry Dale's Corner Graph Updated: 22/07/2017 11:00 |
No data | 34 Low (1) | No data | No data | No data |
| Derry Rosemount Graph Updated: 22/07/2017 12:00 |
49 Low (2) | 5 Low (1) | 10 Low (1) | 3 Low (1) | 5 Low (1) |
| Downpatrick Roadside Graph Updated: 22/07/2017 04:00 |
No data | 15 Low (1) | No data | No data | No data |
| Limavady Dungiven Graph Updated: 22/07/2017 12:00 |
No data | 52 Low (1) | No data | No data | No data |
| Lisburn Dunmurry Seymour Hill Graph Updated: 22/07/2017 11:00 |
No data | No data | No data | No data | 7 Low (1) |
| Lough Navar Graph Updated: 22/07/2017 12:00 |
49 Low (2) | No data | No data | No data | 4 Low (1) |
| Newry Canal Street Graph Updated: 22/07/2017 11:00 |
No data | 8 Low (1) | No data | No data | 19 Low (2) |
| Newtownabbey Antrim Road Graph Updated: 22/07/2017 11:00 |
No data | 13 Low (1) | No data | No data | No data |
| North Down Holywood A2 Graph Updated: 22/07/2017 12:00 |
No data | 35 Low (1) | No data | No data | 10 Low (1) |
| Strabane Springhill Park Graph Updated: 22/07/2017 12:00 |
No data | No data | 16 Low (1) | No data | 7 Low (1) |
