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: 06/12/2021 01:00 |
N/M |
87 Low (2) |
N/M | N/M |
18 Low (2) |
|
Ballymena Antrim Road
Graph Updated: 06/12/2021 01:00 |
N/M |
84 Low (2) |
N/M | N/M | N/M |
|
Ballymena Ballykeel
Graph Updated: 05/12/2021 24:00 |
N/M |
48 Low (1) |
2 Low (1) |
- | - |
|
Belfast Centre
Graph Updated: 06/12/2021 01:00 |
64 Low (2) |
83 Low (2) |
9 Low (1) |
12 Low (2) |
17 Low (2) |
|
Belfast Newtownards Road
Graph Updated: 05/12/2021 17:00 |
N/M |
77 Low (2) |
N/M | N/M | N/M |
|
Belfast Ormeau Road
Graph Updated: 05/12/2021 17:00 |
N/M |
73 Low (2) |
N/M | N/M | N/M |
|
Belfast Stockman's Lane
Graph Updated: 05/12/2021 24:00 |
N/M |
118 Low (2) |
N/M | N/M |
23 Low (2) |
|
Belfast Westlink Roden Street
Graph Updated: 05/12/2021 17:00 |
N/M |
88 Low (2) |
N/M | N/M | N/M |
|
Castlereagh Dundonald
Graph Updated: 06/12/2021 01:00 |
N/M |
57 Low (1) |
N/M | N/M | N/M |
|
Derry Dale's Corner
Graph Updated: 06/12/2021 02:00 |
N/M |
178 Low (3) |
N/M | N/M | N/M |
|
Derry Rosemount
Graph Updated: 06/12/2021 01:00 |
73 Low (3) |
78 Low (2) |
24 Low (1) |
13 Low (2) |
18 Low (2) |
|
Downpatrick Roadside
Graph Updated: 05/12/2021 23:00 |
N/M |
122 Low (2) |
N/M | N/M | N/M |
|
Limavady Dungiven
Graph Updated: 06/12/2021 01:00 |
N/M |
88 Low (2) |
N/M | N/M | N/M |
|
Lisburn Dunmurry Seymour Hill
Graph Updated: 06/12/2021 01:00 |
N/M | N/M |
35 Low (1) |
19 Low (2) |
25 Low (2) |
|
Lough Navar
Graph Updated: 06/12/2021 01:00 |
55 Low (2) |
N/M | N/M |
2 Low (1) |
5 Low (1) |
|
Newry Canal Street
Graph Updated: 05/12/2021 23:00 |
N/M |
136 Low (3) |
N/M | N/M |
18 Low (2) |
|
Newtownabbey Antrim Road
Graph Updated: |
N/M | N/M | N/M | N/M | N/M |
|
Newtownstewart
Graph Updated: 05/12/2021 23:00 |
N/M | N/M | N/M | N/M |
18 Low (2) |
|
North Down Holywood A2
Graph Updated: 06/12/2021 02:00 |
N/M |
52 Low (1) |
N/M |
16 Low (2) |
24 Low (2) |
|
Strabane Springhill Park
Graph Updated: 05/12/2021 24:00 |
N/M | N/M |
8 Low (1) |
N/M |
15 Low (1) |
|
Strathfoyle Bawnmore Place
Graph Updated: 05/12/2021 23:00 |
N/M | N/M | N/M | N/M |
18 Low (2) |