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: 20/11/2019 24:00
N/M 6
Low (1)
N/M N/M 16
Low (1)
Ballymena Antrim Road
Graph
Updated: 20/11/2019 24:00
N/M 13
Low (1)
N/M N/M N/M
Ballymena Ballykeel
Graph
Updated: 20/11/2019 24:00
N/M 13
Low (1)
8
Low (1)
N/M -
Belfast Centre
Graph
Updated: 20/11/2019 24:00
32
Low (1)
29
Low (1)
1
Low (1)
9
Low (1)
15
Low (1)
Belfast Newtownards Road
Graph
Updated: 20/11/2019 17:00
N/M 20
Low (1)
N/M N/M N/M
Belfast Ormeau Road
Graph
Updated: 20/11/2019 17:00
N/M 13
Low (1)
N/M N/M N/M
Belfast Stockman's Lane
Graph
Updated: 20/11/2019 24:00
N/M 19
Low (1)
N/M N/M 18
Low (2)
Belfast Westlink Roden Street
Graph
Updated: 20/11/2019 17:00
N/M 47
Low (1)
N/M N/M N/M
Castlereagh Dundonald
Graph
Updated: 20/11/2019 24:00
N/M 11
Low (1)
N/M N/M N/M
Derry Dale's Corner
Graph
Updated: 20/11/2019 17:00
N/M 28
Low (1)
N/M N/M N/M
Derry Rosemount
Graph
Updated: 20/11/2019 24:00
48
Low (2)
9
Low (1)
6
Low (1)
- -
Downpatrick Roadside
Graph
Updated: 20/11/2019 22:00
N/M 31
Low (1)
N/M N/M N/M
Limavady Dungiven
Graph
Updated: 20/11/2019 24:00
N/M 4
Low (1)
N/M N/M N/M
Lisburn Dunmurry Seymour Hill
Graph
Updated: 20/11/2019 23:00
N/M N/M - N/M 17
Low (2)
Lough Navar
Graph
Updated: 20/11/2019 24:00
58
Low (2)
N/M N/M 7
Low (1)
10
Low (1)
Newry Canal Street
Graph
Updated: 20/11/2019 16:00
N/M 54
Low (1)
N/M N/M 35
Low (3)
Newtownabbey Antrim Road
Graph
Updated: 20/11/2019 23:00
N/M 23
Low (1)
N/M N/M N/M
North Down Holywood A2
Graph
Updated: 20/11/2019 23:00
N/M 6
Low (1)
N/M N/M 18
Low (2)
Strabane Springhill Park
Graph
Updated: 20/11/2019 08:00
N/M N/M 6
Low (1)
N/M 18
Low (2)
Strathfoyle Bawnmore Place
Graph
Updated:
N/M N/M N/M N/M N/M