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: 08/03/2021 01:00
N/M 8
Low (1)
N/M N/M 33
Low (2)
Ballymena Antrim Road
Graph
Updated: 08/03/2021 01:00
N/M 7
Low (1)
N/M N/M N/M
Ballymena Ballykeel
Graph
Updated: 07/03/2021 23:00
N/M 9
Low (1)
5
Low (1)
N/M 28
Low (2)
Belfast Centre
Graph
Updated: 08/03/2021 01:00
36
Low (2)
8
Low (1)
4
Low (1)
18
Low (2)
23
Low (2)
Belfast Newtownards Road
Graph
Updated: 07/03/2021 12:00
N/M 16
Low (1)
N/M N/M N/M
Belfast Ormeau Road
Graph
Updated:
N/M N/M N/M N/M N/M
Belfast Stockman's Lane
Graph
Updated: 07/03/2021 24:00
N/M 12
Low (1)
N/M N/M 35
Low (3)
Belfast Westlink Roden Street
Graph
Updated: 07/03/2021 17:00
N/M 12
Low (1)
N/M N/M N/M
Castlereagh Dundonald
Graph
Updated: 07/03/2021 06:00
N/M 19
Low (1)
N/M N/M N/M
Derry Dale's Corner
Graph
Updated: 07/03/2021 17:00
N/M 54
Low (1)
N/M N/M N/M
Derry Rosemount
Graph
Updated: 08/03/2021 01:00
44
Low (2)
7
Low (1)
7
Low (1)
14
Low (2)
22
Low (2)
Downpatrick Roadside
Graph
Updated: 07/03/2021 17:00
N/M 48
Low (1)
N/M N/M N/M
Limavady Dungiven
Graph
Updated: 07/03/2021 16:00
N/M 31
Low (1)
N/M N/M N/M
Lisburn Dunmurry Seymour Hill
Graph
Updated:
N/M N/M N/M N/M N/M
Lough Navar
Graph
Updated: 08/03/2021 01:00
53
Low (2)
N/M N/M 9
Low (1)
12
Low (1)
Newry Canal Street
Graph
Updated: 07/03/2021 14:00
N/M 19
Low (1)
N/M N/M 37
Low (3)
Newtownabbey Antrim Road
Graph
Updated:
N/M N/M N/M N/M N/M
North Down Holywood A2
Graph
Updated: 07/03/2021 17:00
N/M 11
Low (1)
N/M 19
Low (2)
28
Low (2)
Strabane Springhill Park
Graph
Updated: 07/03/2021 17:00
N/M N/M 24
Low (1)
N/M 22
Low (2)
Strathfoyle Bawnmore Place
Graph
Updated: 07/03/2021 17:00
N/M N/M N/M N/M 19
Low (2)