24 hour summary

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Key

N/D
Data not available
N/M
Data not measured
Air pollution levels for the last 24 hours
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: 22/10/2025 07:00
N/M 62
Low (1)
N/M N/M 17
Low (2)
Ballymena Antrim Road
Updated: 22/10/2025 07:00
N/M 47
Low (1)
N/M N/M N/M
Ballymena Ballykeel
Updated: 22/10/2025 07:00
N/M 26
Low (1)
12
Low (1)
N/A N/A
Belfast Centre
Updated: 22/10/2025 07:00
42
Low (2)
37
Low (1)
8
Low (1)
4
Low (1)
7
Low (1)
Belfast Newtownards Road
Updated: 22/10/2025 07:00
N/M 44
Low (1)
N/M N/M N/M
Belfast Stockman's Lane
Updated: 22/10/2025 07:00
N/M 66
Low (1)
N/M N/M N/A
Belfast Westlink Roden Street
Updated: 22/10/2025 07:00
N/M 56
Low (1)
N/M N/M N/M
Castlederg
Updated: 22/10/2025 06:00
N/M N/M N/M 9
Low (1)
12
Low (1)
Castlereagh Dundonald
Updated: 22/10/2025 07:00
N/M 39
Low (1)
N/M N/M N/M
Derry Dale's Corner
Updated: 22/10/2025 07:00
N/M 131
Low (2)
N/M N/M N/M
Derry Rosemount
Updated: 22/10/2025 07:00
63
Low (2)
14
Low (1)
4
Low (1)
3
Low (1)
8
Low (1)
Downpatrick Roadside
Updated: 22/10/2025 07:00
N/M 66
Low (1)
N/M N/M N/M
Enniskillen Bowling Green
Updated: 22/10/2025 07:00
N/M N/M N/M 4
Low (1)
9
Low (1)
Limavady Dungiven
Updated: 22/10/2025 07:00
N/M 26
Low (1)
N/M 4
Low (1)
8
Low (1)
Lisburn Dunmurry Seymour Hill
Updated: 22/10/2025 07:00
N/M N/M 2
Low (1)
3
Low (1)
6
Low (1)
Lough Navar
Updated: 22/10/2025 07:00
61
Low (2)
N/M N/M 3
Low (1)
7
Low (1)
Newry Canal Street
Updated: 22/10/2025 06:00
N/M 61
Low (1)
N/M N/M 12
Low (1)
Newtownabbey Antrim Road
Updated: 22/10/2025 07:00
N/M 61
Low (1)
N/M N/M N/M
Newtownstewart
Updated:
N/M N/M N/M N/A N/A
North Down Holywood A2
Updated:
N/M 71
Low (2)
N/M 6
Low (1)
10
Low (1)
Strabane Springhill Park
Updated:
N/M N/M N/A N/A N/A
Strathfoyle Bawnmore Place
Updated: 22/10/2025 07:00
N/M N/M N/M 3
Low (1)
7
Low (1)
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