24 hour summary
Switch to the current levels summary
Key
- N/D
- Data not available
- N/M
- Data 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
Updated:
18/09/2025 12:00
|
N/M |
38 Low (1) |
N/M | N/M |
24 Low (2) |
|
Ballymena Antrim Road
Updated:
18/09/2025 12:00
|
N/M |
25 Low (1) |
N/M | N/M | N/M |
|
Ballymena Ballykeel
Updated:
18/09/2025 12:00
|
N/M |
9 Low (1) |
4 Low (1) |
8 Low (1) |
16 Low (1) |
|
Belfast Centre
Updated:
18/09/2025 12:00
|
55 Low (2) |
28 Low (1) |
1 Low (1) |
8 Low (1) |
18 Low (2) |
|
Belfast Newtownards Road
Updated:
18/09/2025 13:00
|
N/M |
29 Low (1) |
N/M | N/M | N/M |
|
Belfast Stockman's Lane
Updated:
18/09/2025 12:00
|
N/M |
75 Low (2) |
N/M | N/M |
21 Low (2) |
|
Belfast Westlink Roden Street
Updated:
18/09/2025 13:00
|
N/M |
27 Low (1) |
N/M | N/M | N/M |
|
Castlederg
Updated:
18/09/2025 13:00
|
N/M | N/M | N/M |
8 Low (1) |
19 Low (2) |
|
Castlereagh Dundonald
Updated:
18/09/2025 11:00
|
N/M |
31 Low (1) |
N/M | N/M | N/M |
|
Derry Dale's Corner
Updated:
18/09/2025 13:00
|
N/M |
43 Low (1) |
N/M | N/M | N/M |
|
Derry Rosemount
Updated:
18/09/2025 12:00
|
71 Low (3) |
7 Low (1) |
2 Low (1) |
5 Low (1) |
18 Low (2) |
|
Downpatrick Roadside
Updated:
18/09/2025 05:00
|
N/M |
55 Low (1) |
N/M | N/M | N/M |
|
Enniskillen Bowling Green
Updated:
18/09/2025 12:00
|
N/M | N/M | N/M |
9 Low (1) |
20 Low (2) |
|
Limavady Dungiven
Updated:
18/09/2025 13:00
|
N/M |
15 Low (1) |
N/M |
7 Low (1) |
16 Low (1) |
|
Lisburn Dunmurry Seymour Hill
Updated:
18/09/2025 05:00
|
N/M | N/M |
1 Low (1) |
6 Low (1) |
13 Low (1) |
|
Lough Navar
Updated:
18/09/2025 12:00
|
60 Low (2) |
N/M | N/M |
7 Low (1) |
13 Low (1) |
|
Newry Canal Street
Updated:
18/09/2025 11:00
|
N/M |
25 Low (1) |
N/M | N/M |
25 Low (2) |
|
Newtownabbey Antrim Road
Updated:
18/09/2025 13:00
|
N/M |
88 Low (2) |
N/M | N/M | N/M |
|
Newtownstewart
Updated:
|
N/M | N/M | N/M | N/A | N/A |
|
North Down Holywood A2
Updated:
18/09/2025 05:00
|
N/M |
50 Low (1) |
N/M |
7 Low (1) |
13 Low (1) |
|
Strabane Springhill Park
Updated:
|
N/M | N/M | N/A | N/A | N/A |
|
Strathfoyle Bawnmore Place
Updated:
18/09/2025 13:00
|
N/M | N/M | N/M |
6 Low (1) |
13 Low (1) |