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: 21/04/2021 09:00 |
N/M |
58 Low (1) |
N/M | N/M |
29 Low (2) |
|
Ballymena Antrim Road
Graph Updated: 21/04/2021 09:00 |
N/M |
51 Low (1) |
N/M | N/M | N/M |
|
Ballymena Ballykeel
Graph Updated: 21/04/2021 09:00 |
N/M |
37 Low (1) |
5 Low (1) |
N/M |
17 Low (2) |
|
Belfast Centre
Graph Updated: 21/04/2021 09:00 |
61 Low (2) |
58 Low (1) |
10 Low (1) |
15 Low (2) |
23 Low (2) |
|
Belfast Newtownards Road
Graph Updated: 21/04/2021 06:00 |
N/M |
64 Low (1) |
N/M | N/M | N/M |
|
Belfast Ormeau Road
Graph Updated: 21/04/2021 06:00 |
N/M |
62 Low (1) |
N/M | N/M | N/M |
|
Belfast Stockman's Lane
Graph Updated: 21/04/2021 09:00 |
N/M |
96 Low (2) |
N/M | N/M |
32 Low (2) |
|
Belfast Westlink Roden Street
Graph Updated: 21/04/2021 06:00 |
N/M |
107 Low (2) |
N/M | N/M | N/M |
|
Castlereagh Dundonald
Graph Updated: 21/04/2021 09:00 |
N/M |
44 Low (1) |
N/M | N/M | N/M |
|
Derry Dale's Corner
Graph Updated: 21/04/2021 10:00 |
N/M |
103 Low (2) |
N/M | N/M | N/M |
|
Derry Rosemount
Graph Updated: 21/04/2021 09:00 |
81 Low (3) |
45 Low (1) |
22 Low (1) |
10 Low (1) |
20 Low (2) |
|
Downpatrick Roadside
Graph Updated: 21/04/2021 08:00 |
N/M |
136 Low (3) |
N/M | N/M | N/M |
|
Limavady Dungiven
Graph Updated: 21/04/2021 09:00 |
N/M |
73 Low (2) |
N/M | N/M | N/M |
|
Lisburn Dunmurry Seymour Hill
Graph Updated: 21/04/2021 08:00 |
N/M | N/M | - | N/M |
23 Low (2) |
|
Lough Navar
Graph Updated: 21/04/2021 09:00 |
85 Low (3) |
N/M | N/M |
7 Low (1) |
10 Low (1) |
|
Newry Canal Street
Graph Updated: 21/04/2021 08:00 |
N/M |
115 Low (2) |
N/M | N/M |
29 Low (2) |
|
Newtownabbey Antrim Road
Graph Updated: 21/04/2021 09:00 |
N/M |
73 Low (2) |
N/M | N/M | N/M |
|
North Down Holywood A2
Graph Updated: 21/04/2021 09:00 |
N/M |
44 Low (1) |
N/M |
11 Low (1) |
18 Low (2) |
|
Strabane Springhill Park
Graph Updated: 21/04/2021 09:00 |
N/M | N/M |
19 Low (1) |
N/M |
15 Low (1) |
|
Strathfoyle Bawnmore Place
Graph Updated: 21/04/2021 10:00 |
N/M | N/M | N/M | N/M |
22 Low (2) |