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: 22/11/2019 24:00
N/M 16
Low (1)
N/M N/M 22
Low (2)
Ballymena Antrim Road
Graph
Updated: 23/11/2019 01:00
N/M 9
Low (1)
N/M N/M N/M
Ballymena Ballykeel
Graph
Updated: 22/11/2019 24:00
N/M 7
Low (1)
- N/M -
Belfast Centre
Graph
Updated: 23/11/2019 01:00
26
Low (1)
23
Low (1)
1
Low (1)
12
Low (2)
19
Low (2)
Belfast Newtownards Road
Graph
Updated: 22/11/2019 17:00
N/M 65
Low (1)
N/M N/M N/M
Belfast Ormeau Road
Graph
Updated: 22/11/2019 17:00
N/M 49
Low (1)
N/M N/M N/M
Belfast Stockman's Lane
Graph
Updated: 22/11/2019 24:00
N/M 19
Low (1)
N/M N/M 16
Low (1)
Belfast Westlink Roden Street
Graph
Updated: 22/11/2019 17:00
N/M 86
Low (2)
N/M N/M N/M
Castlereagh Dundonald
Graph
Updated: 23/11/2019 02:00
N/M 11
Low (1)
N/M N/M N/M
Derry Dale's Corner
Graph
Updated: 22/11/2019 17:00
N/M 76
Low (2)
N/M N/M N/M
Derry Rosemount
Graph
Updated: 23/11/2019 01:00
22
Low (1)
22
Low (1)
9
Low (1)
13
Low (2)
13
Low (1)
Downpatrick Roadside
Graph
Updated: 23/11/2019 02:00
N/M 17
Low (1)
N/M N/M N/M
Limavady Dungiven
Graph
Updated: 23/11/2019 02:00
N/M 2
Low (1)
N/M N/M N/M
Lisburn Dunmurry Seymour Hill
Graph
Updated: 22/11/2019 20:00
N/M N/M - N/M 19
Low (2)
Lough Navar
Graph
Updated: 23/11/2019 01:00
39
Low (2)
N/M N/M 10
Low (1)
13
Low (1)
Newry Canal Street
Graph
Updated: 22/11/2019 23:00
N/M 57
Low (1)
N/M N/M 27
Low (2)
Newtownabbey Antrim Road
Graph
Updated: 23/11/2019 01:00
N/M 10
Low (1)
N/M N/M N/M
North Down Holywood A2
Graph
Updated: 22/11/2019 24:00
N/M -2
Low (1)
N/M N/M 21
Low (2)
Strabane Springhill Park
Graph
Updated: 22/11/2019 08:00
N/M N/M 5
Low (1)
N/M 27
Low (2)
Strathfoyle Bawnmore Place
Graph
Updated:
N/M N/M N/M N/M N/M