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: 30/07/2021 05:00 |
N/M |
38 Low (1) |
N/M | N/M |
13 Low (1) |
|
Ballymena Antrim Road
Graph Updated: 30/07/2021 05:00 |
N/M |
24 Low (1) |
N/M | N/M | N/M |
|
Ballymena Ballykeel
Graph Updated: 30/07/2021 04:00 |
N/M |
20 Low (1) |
6 Low (1) |
3 Low (1) |
6 Low (1) |
|
Belfast Centre
Graph Updated: 30/07/2021 05:00 |
50 Low (2) |
23 Low (1) |
2 Low (1) |
4 Low (1) |
7 Low (1) |
|
Belfast Newtownards Road
Graph Updated: 30/07/2021 04:00 |
N/M |
37 Low (1) |
N/M | N/M | N/M |
|
Belfast Ormeau Road
Graph Updated: 30/07/2021 04:00 |
N/M |
19 Low (1) |
N/M | N/M | N/M |
|
Belfast Stockman's Lane
Graph Updated: 30/07/2021 05:00 |
N/M |
81 Low (2) |
N/M | N/M |
14 Low (1) |
|
Belfast Westlink Roden Street
Graph Updated: 30/07/2021 04:00 |
N/M |
47 Low (1) |
N/M | N/M | N/M |
|
Castlereagh Dundonald
Graph Updated: 30/07/2021 05:00 |
N/M |
31 Low (1) |
N/M | N/M | N/M |
|
Derry Dale's Corner
Graph Updated: |
N/M | N/M | N/M | N/M | N/M |
|
Derry Rosemount
Graph Updated: 30/07/2021 05:00 |
56 Low (2) |
6 Low (1) |
2 Low (1) |
9 Low (1) |
15 Low (1) |
|
Downpatrick Roadside
Graph Updated: 30/07/2021 05:00 |
N/M |
42 Low (1) |
N/M | N/M | N/M |
|
Limavady Dungiven
Graph Updated: 30/07/2021 06:00 |
N/M |
50 Low (1) |
N/M | N/M | N/M |
|
Lisburn Dunmurry Seymour Hill
Graph Updated: 30/07/2021 05:00 |
N/M | N/M |
5 Low (1) |
4 Low (1) |
- |
|
Lough Navar
Graph Updated: 30/07/2021 05:00 |
54 Low (2) |
N/M | N/M |
2 Low (1) |
5 Low (1) |
|
Newry Canal Street
Graph Updated: 30/07/2021 03:00 |
N/M |
57 Low (1) |
N/M | N/M |
11 Low (1) |
|
Newtownabbey Antrim Road
Graph Updated: 30/07/2021 03:00 |
N/M |
31 Low (1) |
N/M | N/M | N/M |
|
Newtownstewart
Graph Updated: 30/07/2021 06:00 |
N/M | N/M | N/M | N/M |
11 Low (1) |
|
North Down Holywood A2
Graph Updated: 30/07/2021 01:00 |
N/M |
63 Low (1) |
N/M |
3 Low (1) |
7 Low (1) |
|
Strabane Springhill Park
Graph Updated: 30/07/2021 04:00 |
N/M | N/M |
8 Low (1) |
N/M |
11 Low (1) |
|
Strathfoyle Bawnmore Place
Graph Updated: 30/07/2021 05:00 |
N/M | N/M | N/M | N/M |
9 Low (1) |