Current levels

Current measured levels are shown in the table below - showing concentrations and, where applicable, the corresponding index and bands.

» Switch to the 24 hour summary

Key: n/m : 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
Graph
Updated: 05/12/2021 24:00
N/M 7
Low (1)
N/M N/M 18
Low (2)
Ballymena Antrim Road
Graph
Updated: 05/12/2021 24:00
N/M 12
Low (1)
N/M N/M N/M
Ballymena Ballykeel
Graph
Updated: 05/12/2021 24:00
N/M 8
Low (1)
1
Low (1)
- -
Belfast Centre
Graph
Updated: 05/12/2021 24:00
4
Low (1)
47
Low (1)
5
Low (1)
12
Low (2)
17
Low (2)
Belfast Newtownards Road
Graph
Updated: 05/12/2021 17:00
N/M 77
Low (2)
N/M N/M N/M
Belfast Ormeau Road
Graph
Updated: 05/12/2021 17:00
N/M 73
Low (2)
N/M N/M N/M
Belfast Stockman's Lane
Graph
Updated: 05/12/2021 24:00
N/M 42
Low (1)
N/M N/M 23
Low (2)
Belfast Westlink Roden Street
Graph
Updated: 05/12/2021 17:00
N/M 82
Low (2)
N/M N/M N/M
Castlereagh Dundonald
Graph
Updated: 05/12/2021 23:00
N/M 44
Low (1)
N/M N/M N/M
Derry Dale's Corner
Graph
Updated: 05/12/2021 23:00
N/M 88
Low (2)
N/M N/M N/M
Derry Rosemount
Graph
Updated: 05/12/2021 24:00
30
Low (1)
5
Low (1)
5
Low (1)
12
Low (2)
18
Low (2)
Downpatrick Roadside
Graph
Updated: 05/12/2021 23:00
N/M 59
Low (1)
N/M N/M N/M
Limavady Dungiven
Graph
Updated: 06/12/2021 01:00
N/M 10
Low (1)
N/M N/M N/M
Lisburn Dunmurry Seymour Hill
Graph
Updated: 05/12/2021 24:00
N/M N/M 29
Low (1)
18
Low (2)
25
Low (2)
Lough Navar
Graph
Updated: 05/12/2021 24:00
35
Low (2)
N/M N/M 2
Low (1)
5
Low (1)
Newry Canal Street
Graph
Updated: 05/12/2021 23:00
N/M 23
Low (1)
N/M N/M 18
Low (2)
Newtownabbey Antrim Road
Graph
Updated:
N/M N/M N/M N/M N/M
Newtownstewart
Graph
Updated: 05/12/2021 23:00
N/M N/M N/M N/M 17
Low (2)
North Down Holywood A2
Graph
Updated: 05/12/2021 24:00
N/M 13
Low (1)
N/M 16
Low (2)
24
Low (2)
Strabane Springhill Park
Graph
Updated: 05/12/2021 24:00
N/M N/M 5
Low (1)
N/M 15
Low (1)
Strathfoyle Bawnmore Place
Graph
Updated: 05/12/2021 23:00
N/M N/M N/M N/M 18
Low (2)