Current levels
Key
- N/D
- Data not available
- N/M
- Data 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
of Measured data for Armagh Lonsdale Road
Updated:
18/09/2025 17:00
|
N/M |
19 Low (1) |
N/M | N/M |
22 Low (2) |
|
Ballymena Antrim Road
Graph
of Measured data for Ballymena Antrim Road
Updated:
18/09/2025 17:00
|
N/M |
27 Low (1) |
N/M | N/M | N/M |
|
Ballymena Ballykeel
Graph
of Measured data for Ballymena Ballykeel
Updated:
18/09/2025 17:00
|
N/M |
20 Low (1) |
2 Low (1) |
8 Low (1) |
16 Low (1) |
|
Belfast Centre
Graph
of Measured data for Belfast Centre
Updated:
18/09/2025 17:00
|
39 Low (2) |
22 Low (1) |
1 Low (1) |
8 Low (1) |
17 Low (2) |
|
Belfast Newtownards Road
Graph
of Measured data for Belfast Newtownards Road
Updated:
18/09/2025 17:00
|
N/M |
27 Low (1) |
N/M | N/M | N/M |
|
Belfast Stockman's Lane
Graph
of Measured data for Belfast Stockman's Lane
Updated:
18/09/2025 17:00
|
N/M |
65 Low (1) |
N/M | N/M |
23 Low (2) |
|
Belfast Westlink Roden Street
Graph
of Measured data for Belfast Westlink Roden Street
Updated:
18/09/2025 17:00
|
N/M |
36 Low (1) |
N/M | N/M | N/M |
|
Castlederg
Graph
of Measured data for Castlederg
Updated:
18/09/2025 17:00
|
N/M | N/M | N/M |
7 Low (1) |
16 Low (1) |
|
Castlereagh Dundonald
Graph
of Measured data for Castlereagh Dundonald
Updated:
18/09/2025 14:00
|
N/M |
28 Low (1) |
N/M | N/M | N/M |
|
Derry Dale's Corner
Graph
of Measured data for Derry Dale's Corner
Updated:
18/09/2025 17:00
|
N/M |
52 Low (1) |
N/M | N/M | N/M |
|
Derry Rosemount
Graph
of Measured data for Derry Rosemount
Updated:
18/09/2025 17:00
|
50 Low (2) |
20 Low (1) |
2 Low (1) |
4 Low (1) |
15 Low (1) |
|
Downpatrick Roadside
Graph
of Measured data for Downpatrick Roadside
Updated:
|
N/M | N/A | N/M | N/M | N/M |
|
Enniskillen Bowling Green
Graph
of Measured data for Enniskillen Bowling Green
Updated:
18/09/2025 17:00
|
N/M | N/M | N/M |
6 Low (1) |
13 Low (1) |
|
Limavady Dungiven
Graph
of Measured data for Limavady Dungiven
Updated:
18/09/2025 17:00
|
N/M |
12 Low (1) |
N/M |
6 Low (1) |
13 Low (1) |
|
Lisburn Dunmurry Seymour Hill
Graph
of Measured data for Lisburn Dunmurry Seymour Hill
Updated:
18/09/2025 14:00
|
N/M | N/M |
1 Low (1) |
7 Low (1) |
15 Low (1) |
|
Lough Navar
Graph
of Measured data for Lough Navar
Updated:
18/09/2025 17:00
|
46 Low (2) |
N/M | N/M |
5 Low (1) |
11 Low (1) |
|
Newry Canal Street
Graph
of Measured data for Newry Canal Street
Updated:
18/09/2025 17:00
|
N/M |
28 Low (1) |
N/M | N/M |
27 Low (2) |
|
Newtownabbey Antrim Road
Graph
of Measured data for Newtownabbey Antrim Road
Updated:
18/09/2025 17:00
|
N/M |
68 Low (2) |
N/M | N/M | N/M |
|
Newtownstewart
Graph
of Measured data for Newtownstewart
Updated:
|
N/M | N/M | N/M | N/A | N/A |
|
North Down Holywood A2
Graph
of Measured data for North Down Holywood A2
Updated:
18/09/2025 14:00
|
N/M |
28 Low (1) |
N/M |
8 Low (1) |
16 Low (1) |
|
Strabane Springhill Park
Graph
of Measured data for Strabane Springhill Park
Updated:
|
N/M | N/M | N/A | N/A | N/A |
|
Strathfoyle Bawnmore Place
Graph
of Measured data for Strathfoyle Bawnmore Place
Updated:
18/09/2025 17:00
|
N/M | N/M | N/M |
5 Low (1) |
11 Low (1) |
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