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: 26/01/2020 07:00
N/M 4
Low (1)
N/M N/M 15
Low (1)
Ballymena Antrim Road
Graph
Updated: 26/01/2020 07:00
N/M 4
Low (1)
N/M N/M N/M
Ballymena Ballykeel
Graph
Updated: 26/01/2020 06:00
N/M 3
Low (1)
- N/M 13
Low (1)
Belfast Centre
Graph
Updated: 26/01/2020 07:00
45
Low (2)
30
Low (1)
4
Low (1)
7
Low (1)
11
Low (1)
Belfast Newtownards Road
Graph
Updated: 26/01/2020 07:00
N/M 3
Low (1)
N/M N/M N/M
Belfast Ormeau Road
Graph
Updated: 26/01/2020 07:00
N/M 6
Low (1)
N/M N/M N/M
Belfast Stockman's Lane
Graph
Updated: 26/01/2020 07:00
N/M 14
Low (1)
N/M N/M 16
Low (1)
Belfast Westlink Roden Street
Graph
Updated: 26/01/2020 07:00
N/M 3
Low (1)
N/M N/M N/M
Castlereagh Dundonald
Graph
Updated: 26/01/2020 07:00
N/M 3
Low (1)
N/M N/M N/M
Derry Dale's Corner
Graph
Updated: 26/01/2020 07:00
N/M 0
Low (1)
N/M N/M N/M
Derry Rosemount
Graph
Updated: 26/01/2020 07:00
63
Low (2)
0
Low (1)
15
Low (1)
5
Low (1)
10
Low (1)
Downpatrick Roadside
Graph
Updated: 26/01/2020 06:00
N/M 4
Low (1)
N/M N/M N/M
Limavady Dungiven
Graph
Updated:
N/M N/M N/M N/M N/M
Lisburn Dunmurry Seymour Hill
Graph
Updated: 26/01/2020 07:00
N/M N/M - N/M 11
Low (1)
Lough Navar
Graph
Updated: 26/01/2020 07:00
68
Low (3)
N/M N/M 3
Low (1)
7
Low (1)
Newry Canal Street
Graph
Updated: 26/01/2020 07:00
N/M 4
Low (1)
N/M N/M 11
Low (1)
Newtownabbey Antrim Road
Graph
Updated: 26/01/2020 07:00
N/M 8
Low (1)
N/M N/M N/M
North Down Holywood A2
Graph
Updated: 26/01/2020 07:00
N/M -6 N/M N/M 19
Low (2)
Strabane Springhill Park
Graph
Updated: 26/01/2020 07:00
N/M N/M 4
Low (1)
N/M 7
Low (1)
Strathfoyle Bawnmore Place
Graph
Updated: 26/01/2020 07:00
N/M N/M N/M N/M 11
Low (1)