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: 04/08/2020 01:00
N/M 23
Low (1)
N/M N/M 28
Low (2)
Ballymena Antrim Road
Graph
Updated:
N/M N/M N/M N/M N/M
Ballymena Ballykeel
Graph
Updated: 04/08/2020 02:00
N/M 7
Low (1)
8
Low (1)
N/M 10
Low (1)
Belfast Centre
Graph
Updated: 04/08/2020 01:00
36
Low (2)
12
Low (1)
3
Low (1)
4
Low (1)
9
Low (1)
Belfast Newtownards Road
Graph
Updated: 03/08/2020 16:00
N/M 23
Low (1)
N/M N/M N/M
Belfast Ormeau Road
Graph
Updated: 03/08/2020 16:00
N/M 14
Low (1)
N/M N/M N/M
Belfast Stockman's Lane
Graph
Updated: 03/08/2020 24:00
N/M 19
Low (1)
N/M N/M 19
Low (2)
Belfast Westlink Roden Street
Graph
Updated: 03/08/2020 16:00
N/M 20
Low (1)
N/M N/M N/M
Castlereagh Dundonald
Graph
Updated: 04/08/2020 02:00
N/M 4
Low (1)
N/M N/M N/M
Derry Dale's Corner
Graph
Updated: 04/08/2020 01:00
N/M 6
Low (1)
N/M N/M N/M
Derry Rosemount
Graph
Updated: 04/08/2020 01:00
34
Low (2)
2
Low (1)
14
Low (1)
2
Low (1)
8
Low (1)
Downpatrick Roadside
Graph
Updated: 04/08/2020 02:00
N/M 2
Low (1)
N/M N/M N/M
Limavady Dungiven
Graph
Updated: 04/08/2020 02:00
N/M 2
Low (1)
N/M N/M N/M
Lisburn Dunmurry Seymour Hill
Graph
Updated: 04/08/2020 02:00
N/M N/M 0
Low (1)
N/M 8
Low (1)
Lough Navar
Graph
Updated: 04/08/2020 01:00
31
Low (1)
N/M N/M 2
Low (1)
5
Low (1)
Newry Canal Street
Graph
Updated: 04/08/2020 02:00
N/M 6
Low (1)
N/M N/M 9
Low (1)
Newtownabbey Antrim Road
Graph
Updated: 04/08/2020 01:00
N/M 6
Low (1)
N/M N/M N/M
North Down Holywood A2
Graph
Updated: 04/08/2020 02:00
N/M 3
Low (1)
N/M N/M 10
Low (1)
Strabane Springhill Park
Graph
Updated: 04/08/2020 02:00
N/M N/M - N/M 9
Low (1)
Strathfoyle Bawnmore Place
Graph
Updated: 04/08/2020 02:00
N/M N/M N/M N/M 14
Low (1)