24 hour summary
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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:
15/03/2025 11:00
|
N/M |
53 Low (1) |
N/M | N/M |
26 Low (2) |
|
Ballymena Antrim Road
Updated:
15/03/2025 11:00
|
N/M |
62 Low (1) |
N/M | N/M | N/M |
|
Ballymena Ballykeel
Updated:
|
N/M | N/A | N/A | N/A | N/A |
|
Belfast Centre
Updated:
15/03/2025 11:00
|
62 Low (2) |
71 Low (2) |
5 Low (1) |
10 Low (1) |
17 Low (2) |
|
Belfast Newtownards Road
Updated:
15/03/2025 11:00
|
N/M |
71 Low (2) |
N/M | N/M | N/M |
|
Belfast Ormeau Road
Updated:
15/03/2025 11:00
|
N/M |
75 Low (2) |
N/M | N/M | N/M |
|
Belfast Stockman's Lane
Updated:
15/03/2025 11:00
|
N/M |
68 Low (2) |
N/M | N/M |
35 Low (3) |
|
Belfast Westlink Roden Street
Updated:
15/03/2025 11:00
|
N/M |
77 Low (2) |
N/M | N/M | N/M |
|
Castlereagh Dundonald
Updated:
15/03/2025 05:00
|
N/M |
54 Low (1) |
N/M | N/M | N/M |
|
Derry Dale's Corner
Updated:
|
N/M | N/A | N/M | N/M | N/M |
|
Derry Rosemount
Updated:
15/03/2025 11:00
|
75 Low (3) |
49 Low (1) |
21 Low (1) |
N/A |
14 Low (1) |
|
Downpatrick Roadside
Updated:
15/03/2025 06:00
|
N/M |
126 Low (2) |
N/M | N/M | N/M |
|
Enniskillen Bowling Green
Updated:
15/03/2025 11:00
|
N/M | N/M | N/M |
14 Low (2) |
19 Low (2) |
|
Limavady Dungiven
Updated:
15/03/2025 10:00
|
N/M |
58 Low (1) |
N/M | N/M | N/M |
|
Lisburn Dunmurry Seymour Hill
Updated:
15/03/2025 05:00
|
N/M | N/M |
3 Low (1) |
9 Low (1) |
14 Low (1) |
|
Lough Navar
Updated:
15/03/2025 11:00
|
71 Low (3) |
N/M | N/M |
2 Low (1) |
3 Low (1) |
|
Newry Canal Street
Updated:
15/03/2025 10:00
|
N/M |
126 Low (2) |
N/M | N/M |
46 Low (3) |
|
Newtownabbey Antrim Road
Updated:
15/03/2025 11:00
|
N/M |
110 Low (2) |
N/M | N/M | N/M |
|
Newtownstewart
Updated:
15/03/2025 11:00
|
N/M | N/M | N/M |
7 Low (1) |
10 Low (1) |
|
North Down Holywood A2
Updated:
15/03/2025 06:00
|
N/M |
60 Low (1) |
N/M |
6 Low (1) |
12 Low (1) |
|
Strabane Springhill Park
Updated:
|
N/M | N/M | N/A | N/A | N/A |
|
Strathfoyle Bawnmore Place
Updated:
15/03/2025 10:00
|
N/M | N/M | N/M |
10 Low (1) |
15 Low (1) |