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: 30/04/2025 05:00
N/M 51
Low (1)
N/M N/M 21
Low (2)
Ballymena Antrim Road
Updated: 30/04/2025 05:00
N/M 34
Low (1)
N/M N/M N/M
Ballymena Ballykeel
Updated:
N/M N/A N/A N/A N/A
Belfast Centre
Updated: 30/04/2025 05:00
77
Low (3)
56
Low (1)
3
Low (1)
10
Low (1)
16
Low (1)
Belfast Newtownards Road
Updated: 30/04/2025 05:00
N/M 48
Low (1)
N/M N/M N/M
Belfast Ormeau Road
Updated: 30/04/2025 05:00
N/M 58
Low (1)
N/M N/M N/M
Belfast Stockman's Lane
Updated: 30/04/2025 05:00
N/M 63
Low (1)
N/M N/M 32
Low (2)
Belfast Westlink Roden Street
Updated: 30/04/2025 05:00
N/M 90
Low (2)
N/M N/M N/M
Castlereagh Dundonald
Updated: 30/04/2025 04:00
N/M 55
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: 30/04/2025 05:00
98
Low (3)
35
Low (1)
3
Low (1)
5
Low (1)
13
Low (1)
Downpatrick Roadside
Updated: 30/04/2025 05:00
N/M 81
Low (2)
N/M N/M N/M
Enniskillen Bowling Green
Updated: 30/04/2025 05:00
N/M N/M N/M 10
Low (1)
16
Low (1)
Limavady Dungiven
Updated: 30/04/2025 05:00
N/M 63
Low (1)
N/M N/M N/M
Lisburn Dunmurry Seymour Hill
Updated: 30/04/2025 04:00
N/M N/M 2
Low (1)
8
Low (1)
13
Low (1)
Lough Navar
Updated: 30/04/2025 05:00
94
Low (3)
N/M N/M 5
Low (1)
7
Low (1)
Newry Canal Street
Updated: 30/04/2025 04:00
N/M 90
Low (2)
N/M N/M 21
Low (2)
Newtownabbey Antrim Road
Updated: 30/04/2025 05:00
N/M 74
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: 30/04/2025 04:00
N/M 55
Low (1)
N/M 11
Low (1)
18
Low (2)
Strabane Springhill Park
Updated:
N/M N/M N/A N/A N/A
Strathfoyle Bawnmore Place
Updated: 30/04/2025 05:00
N/M N/M N/M 9
Low (1)
15
Low (1)
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