24 Hour Summary
The maximum pollutant concentrations measured during the last 24 hours across Northern Ireland are shown below. Summary graphs showing the last seven days are available for each pollutant in the left hand column of the table.
» Switch to the current levels 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: 23/09/2021 19:00 |
N/M |
48 Low (1) |
N/M | N/M |
20 Low (2) |
|
Ballymena Antrim Road
Graph Updated: 23/09/2021 19:00 |
N/M |
32 Low (1) |
N/M | N/M | N/M |
|
Ballymena Ballykeel
Graph Updated: 23/09/2021 17:00 |
N/M |
10 Low (1) |
3 Low (1) |
6 Low (1) |
13 Low (1) |
|
Belfast Centre
Graph Updated: 23/09/2021 19:00 |
70 Low (3) |
34 Low (1) |
10 Low (1) |
7 Low (1) |
17 Low (2) |
|
Belfast Newtownards Road
Graph Updated: 23/09/2021 16:00 |
N/M |
36 Low (1) |
N/M | N/M | N/M |
|
Belfast Ormeau Road
Graph Updated: 23/09/2021 16:00 |
N/M |
27 Low (1) |
N/M | N/M | N/M |
|
Belfast Stockman's Lane
Graph Updated: 23/09/2021 19:00 |
N/M |
73 Low (2) |
N/M | N/M |
23 Low (2) |
|
Belfast Westlink Roden Street
Graph Updated: 23/09/2021 16:00 |
N/M |
28 Low (1) |
N/M | N/M | N/M |
|
Castlereagh Dundonald
Graph Updated: 23/09/2021 14:00 |
N/M |
34 Low (1) |
N/M | N/M | N/M |
|
Derry Dale's Corner
Graph Updated: 23/09/2021 19:00 |
N/M |
61 Low (1) |
N/M | N/M | N/M |
|
Derry Rosemount
Graph Updated: 23/09/2021 19:00 |
68 Low (3) |
11 Low (1) |
7 Low (1) |
5 Low (1) |
17 Low (2) |
|
Downpatrick Roadside
Graph Updated: 23/09/2021 19:00 |
N/M |
73 Low (2) |
N/M | N/M | N/M |
|
Limavady Dungiven
Graph Updated: |
N/M | N/M | N/M | N/M | N/M |
|
Lisburn Dunmurry Seymour Hill
Graph Updated: 23/09/2021 18:00 |
N/M | N/M |
19 Low (1) |
5 Low (1) |
11 Low (1) |
|
Lough Navar
Graph Updated: 23/09/2021 19:00 |
72 Low (3) |
N/M | N/M |
6 Low (1) |
13 Low (1) |
|
Newry Canal Street
Graph Updated: 23/09/2021 01:00 |
N/M |
50 Low (1) |
N/M | N/M | - |
|
Newtownabbey Antrim Road
Graph Updated: |
N/M | N/M | N/M | N/M | N/M |
|
Newtownstewart
Graph Updated: 23/09/2021 19:00 |
N/M | N/M | N/M | N/M |
23 Low (2) |
|
North Down Holywood A2
Graph Updated: 23/09/2021 18:00 |
N/M |
33 Low (1) |
N/M |
6 Low (1) |
16 Low (1) |
|
Strabane Springhill Park
Graph Updated: |
N/M | N/M | N/M | N/M | N/M |
|
Strathfoyle Bawnmore Place
Graph Updated: 23/09/2021 19:00 |
N/M | N/M | N/M | N/M |
21 Low (2) |