24 hour summary

Switch to the current levels summary

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: 24/03/2026 19:00
N/M 44
Low (1)
N/M N/M 25
Low (2)
Ballymena Antrim Road
Updated: 24/03/2026 19:00
N/M 25
Low (1)
N/M N/M N/M
Ballymena Ballykeel
Updated: 24/03/2026 18:00
N/M 13
Low (1)
30
Low (1)
11
Low (1)
19
Low (2)
Belfast Centre
Updated: 24/03/2026 19:00
64
Low (2)
43
Low (1)
3
Low (1)
9
Low (1)
18
Low (2)
Belfast Newtownards Road
Updated: 24/03/2026 20:00
N/M 41
Low (1)
N/M N/M N/M
Belfast Stockman's Lane
Updated: 24/03/2026 19:00
N/M 61
Low (1)
N/M N/M 33
Low (2)
Belfast Westlink Roden Street
Updated: 24/03/2026 20:00
N/M 33
Low (1)
N/M N/M N/M
Castlederg
Updated: 24/03/2026 20:00
N/M N/M N/M 12
Low (2)
21
Low (2)
Castlereagh Dundonald
Updated: 24/03/2026 20:00
N/M 40
Low (1)
N/M N/M N/M
Derry Dale's Corner
Updated: 24/03/2026 20:00
N/M 44
Low (1)
N/M N/M N/M
Derry Rosemount
Updated: 24/03/2026 19:00
79
Low (3)
6
Low (1)
2
Low (1)
8
Low (1)
20
Low (2)
Downpatrick Roadside
Updated:
N/M 86
Low (2)
N/M N/M N/M
Enniskillen Bowling Green
Updated: 24/03/2026 19:00
N/M N/M N/M 5
Low (1)
11
Low (1)
Limavady Dungiven
Updated: 24/03/2026 19:00
N/M 17
Low (1)
N/M 11
Low (1)
23
Low (2)
Lisburn Dunmurry Seymour Hill
Updated: 24/03/2026 19:00
N/M N/M 11
Low (1)
8
Low (1)
13
Low (1)
Lough Navar
Updated: 24/03/2026 19:00
73
Low (3)
N/M N/M 8
Low (1)
12
Low (1)
Newry Canal Street
Updated: 24/03/2026 19:00
N/M 25
Low (1)
N/M N/M 19
Low (2)
Newtownabbey Antrim Road
Updated: 24/03/2026 19:00
N/M 76
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: 24/03/2026 19:00
N/M 43
Low (1)
N/M 8
Low (1)
17
Low (2)
Strabane Springhill Park
Updated:
N/M N/M N/A N/A N/A
Strathfoyle Bawnmore Place
Updated: 24/03/2026 20:00
N/M N/M N/M 11
Low (1)
19
Low (2)
Find out more about the bands