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:
22/06/2026 23:00
|
N/M |
30 Low (1) |
N/M | N/M |
14 Low (1) |
|
Ballymena Antrim Road
Updated:
22/06/2026 23:00
|
N/M |
26 Low (1) |
N/M | N/M | N/M |
|
Ballymena Ballykeel
Updated:
22/06/2026 21:00
|
N/M |
18 Low (1) |
2 Low (1) |
5 Low (1) |
9 Low (1) |
|
Belfast Centre
Updated:
22/06/2026 23:00
|
37 Low (2) |
62 Low (1) |
2 Low (1) |
8 Low (1) |
17 Low (2) |
|
Belfast Newtownards Road
Updated:
22/06/2026 22:00
|
N/M |
43 Low (1) |
N/M | N/M | N/M |
|
Belfast Stockman's Lane
Updated:
22/06/2026 23:00
|
N/M |
73 Low (2) |
N/M | N/M |
21 Low (2) |
|
Belfast Westlink Roden Street
Updated:
22/06/2026 22:00
|
N/M |
86 Low (2) |
N/M | N/M | N/M |
|
Castlederg
Updated:
22/06/2026 23:00
|
N/M | N/M | N/M |
5 Low (1) |
10 Low (1) |
|
Castlereagh Dundonald
Updated:
22/06/2026 23:00
|
N/M |
43 Low (1) |
N/M | N/M | N/M |
|
Derry Dale's Corner
Updated:
22/06/2026 23:00
|
N/M |
51 Low (1) |
N/M | N/M | N/M |
|
Derry Rosemount
Updated:
22/06/2026 23:00
|
64 Low (2) |
24 Low (1) |
2 Low (1) |
4 Low (1) |
11 Low (1) |
|
Downpatrick Roadside
Updated:
22/06/2026 23:00
|
N/M |
48 Low (1) |
N/M | N/M | N/M |
|
Enniskillen Bowling Green
Updated:
22/06/2026 23:00
|
N/M | N/M | N/M |
4 Low (1) |
8 Low (1) |
|
Limavady Dungiven
Updated:
22/06/2026 23:00
|
N/M |
35 Low (1) |
N/M |
5 Low (1) |
12 Low (1) |
|
Lisburn Dunmurry Seymour Hill
Updated:
22/06/2026 23:00
|
N/M | N/M |
1 Low (1) |
7 Low (1) |
12 Low (1) |
|
Lough Navar
Updated:
22/06/2026 23:00
|
73 Low (3) |
N/M | N/M |
3 Low (1) |
5 Low (1) |
|
Newry Canal Street
Updated:
22/06/2026 23:00
|
N/M |
64 Low (1) |
N/M |
8 Low (1) |
16 Low (1) |
|
Newtownabbey Antrim Road
Updated:
22/06/2026 23:00
|
N/M |
48 Low (1) |
N/M | N/M | N/M |
|
Newtownstewart
Updated:
22/06/2026 23:00
|
N/M | N/M | N/M |
4 Low (1) |
9 Low (1) |
|
North Down Holywood A2
Updated:
22/06/2026 23:00
|
N/M |
44 Low (1) |
N/M |
5 Low (1) |
10 Low (1) |
|
Strabane Springhill Park
Updated:
|
N/M | N/M | N/A | N/A | N/A |
|
Strathfoyle Bawnmore Place
Updated:
22/06/2026 22:00
|
N/M | N/M | N/M |
5 Low (1) |
11 Low (1) |