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Current levels

Current measured levels are shown in the table below - showing concentrations and, where applicable, the corresponding index and bands.

ยป 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: 22/11/2017 02:00
n/m8
Low (1)
n/mn/m11
Low (1)
Ballymena Antrim Road
Graph
Updated: 22/11/2017 01:00
n/m10
Low (1)
n/mn/mn/m
Ballymena Ballykeel
Graph
Updated: 22/11/2017 01:00
n/m2
Low (1)
3
Low (1)
n/m0
Low (1)
Belfast Centre
Graph
Updated: 22/11/2017 02:00
54
Low (2)
9
Low (1)
21
Low (1)
8
Low (1)
11
Low (1)
Belfast Newtownards Road
Graph
Updated: 21/11/2017 17:00
n/m31
Low (1)
n/mn/mn/m
Belfast Ormeau Road
Graph
Updated: 21/11/2017 15:00
n/m40
Low (1)
n/mn/mn/m
Belfast Stockman's Lane
Graph
Updated: 22/11/2017 02:00
n/m8
Low (1)
n/mn/m16
Low (1)
Belfast Westlink Roden Street
Graph
Updated: 21/11/2017 15:00
n/m23
Low (1)
n/mn/mn/m
Castlereagh Dundonald
Graph
Updated: 21/11/2017 15:00
n/m25
Low (1)
n/mn/mn/m
Derry Dale's Corner
Graph
Updated: 21/11/2017 15:00
n/m36
Low (1)
n/mn/mn/m
Derry Rosemount
Graph
Updated: 22/11/2017 02:00
69
Low (3)
4
Low (1)
4
Low (1)
5
Low (1)
5
Low (1)
Downpatrick Roadside
Graph
Updated: 21/11/2017 15:00
n/m88
Low (2)
n/mn/mn/m
Limavady Dungiven
Graph
Updated: 22/11/2017 02:00
n/m27
Low (1)
n/mn/mn/m
Lisburn Dunmurry Seymour Hill
Graph
Updated: 21/11/2017 15:00
n/mn/mNo datan/m12
Low (1)
Lough Navar
Graph
Updated: 22/11/2017 02:00
59
Low (2)
n/mn/mn/m4
Low (1)
Newry Canal Street
Graph
Updated: 21/11/2017 15:00
n/m25
Low (1)
n/mn/m9
Low (1)
Newtownabbey Antrim Road
Graph
Updated: 22/11/2017 02:00
n/m6
Low (1)
n/mn/mn/m
North Down Holywood A2
Graph
Updated: 21/11/2017 15:00
n/m55
Low (1)
n/mn/m14
Low (1)
Strabane Springhill Park
Graph
Updated: 21/11/2017 15:00
n/mn/m3
Low (1)
n/m10
Low (1)

Low 1 2 3

Moderate 4 5 6

High 7 8 9

Very High 10

Find out more about the bands »