Current measured levels are shown in the table below - showing concentrations and, where applicable, the corresponding index and bands.
Current Levels
| 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 |
|---|---|---|---|---|---|
|
Anglesey Brynteg Updated: 29/10/2020 11:00 |
Not measured | Not measured | Not measured | 12 Low (2) |
28 Low (2) |
|
Anglesey Llynfaes Updated: - |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Anglesey Penhesgyn 3 Updated: 20/10/2020 24:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Aston Hill Updated: 29/10/2020 16:00 |
69 Low (3) |
No Data | Not measured | Not measured | Not measured |
|
Caerphilly Blackwood High Street Updated: 29/10/2020 13:00 |
Not measured | 17 Low (1) |
Not measured | Not measured | 15 Low (1) |
|
Caerphilly Fochriw Updated: 29/10/2020 12:00 |
Not measured | Not measured | Not measured | 5 Low (1) |
No Data |
|
Caerphilly Islwyn Road Wattsville Updated: 29/10/2020 15:00 |
Not measured | 13 Low (1) |
Not measured | Not measured | Not measured |
|
Caerphilly White Street Updated: 29/10/2020 13:00 |
Not measured | 3 Low (1) |
Not measured | Not measured | 15 Low (1) |
|
Cardiff Castle Street Updated: 29/10/2020 16:00 |
Not measured | 10 Low (1) |
Not measured | 6 Low (1) |
15 Low (1) |
|
Cardiff Centre Updated: 29/10/2020 16:00 |
58 Low (2) |
10 Low (1) |
1 Low (1) |
4 Low (1) |
13 Low (1) |
|
Cardiff Newport Road Updated: 29/10/2020 16:00 |
Not measured | 8 Low (1) |
Not measured | Not measured | 16 Low (1) |
|
Chepstow A48 Updated: 29/10/2020 16:00 |
Not measured | 23 Low (1) |
Not measured | 8 Low (1) |
15 Low (1) |
|
Cimla Road / Victoria Gardens Updated: 29/10/2020 07:00 |
Not measured | 20 Low (1) |
Not measured | Not measured | Not measured |
|
Cwmbran Crownbridge Updated: 29/10/2020 16:00 |
66 Low (2) |
4 Low (1) |
Not measured | Not measured | Not measured |
|
Hafod-yr-ynys Roadside Updated: 29/10/2020 16:00 |
Not measured | 23 Low (1) |
Not measured | Not measured | Not measured |
|
Marchlyn Mawr Updated: 29/10/2020 16:00 |
60 Low (2) |
11 Low (1) |
Not measured | Not measured | Not measured |
|
Nantgarw Road Updated: 29/10/2020 13:00 |
Not measured | 20 Low (1) |
Not measured | Not measured | Not measured |
|
Narberth Updated: 29/10/2020 16:00 |
75 Low (3) |
No Data | 4 Low (1) |
8 Low (1) |
13 Low (1) |
|
Newport M4 Junction 25 Updated: 29/10/2020 16:00 |
36 Low (2) |
26 Low (1) |
Not measured | Not measured | Not measured |
|
Newport St Julians Comp School Updated: 29/10/2020 16:00 |
Not measured | 5 Low (1) |
Not measured | 7 Low (1) |
13 Low (1) |
|
Port Talbot Dyffryn School Updated: 29/10/2020 16:00 |
Not measured | Not measured | Not measured | Not measured | 28 Low (2) |
|
Port Talbot Little Warren Updated: 29/10/2020 16:00 |
Not measured | Not measured | Not measured | Not measured | 26 Low (2) |
|
Port Talbot Margam Updated: 29/10/2020 15:00 |
55 Low (2) |
13 Low (1) |
7 Low (1) |
10 Low (1) |
36 Low (3) |
|
Port Talbot Prince Street 2 Updated: 29/10/2020 16:00 |
Not measured | Not measured | Not measured | 8 Low (1) |
31 Low (2) |
|
Port Talbot Twll-yn-y-Wal Park Updated: 29/10/2020 16:00 |
Not measured | Not measured | Not measured | Not measured | 36 Low (3) |
|
Rhondda Glyncoch Garth Avenue Updated: 29/10/2020 16:00 |
Not measured | Not measured | Not measured | Not measured | 7 Low (1) |
|
Rhondda Mountain Ash Updated: 29/10/2020 13:00 |
Not measured | 24 Low (1) |
Not measured | Not measured | Not measured |
|
Rhondda Pontypridd Gelliwastad Rd Updated: 29/10/2020 07:00 |
Not measured | 27 Low (1) |
Not measured | Not measured | Not measured |
|
Rhondda-Cynon-Taf Broadway Updated: 29/10/2020 12:00 |
Not measured | 14 Low (1) |
Not measured | Not measured | Not measured |
|
Swansea Cwm Level Park Updated: 29/10/2020 06:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Swansea Hafod DOAS Updated: 08/10/2020 14:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Swansea Morfa Road NOX Updated: - |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Swansea Morriston Roadside Updated: - |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Swansea Port Tennant Roadside Updated: 27/10/2020 19:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Swansea Roadside Updated: 29/10/2020 16:00 |
Not measured | 9 Low (1) |
Not measured | 5 Low (1) |
22 Low (2) |
|
Swansea St Thomas DOAS Updated: 08/10/2020 14:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Swansea Station Court High Street Updated: 08/10/2020 14:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Twynyrodyn Updated: - |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
V Glamorgan Windsor Road Penarth Updated: 29/10/2020 06:00 |
No Data | 2 Low (1) |
Not measured | Not measured | No Data |
|
Wrexham Updated: 29/10/2020 16:00 |
Not measured | 5 Low (1) |
4 Low (1) |
5 Low (1) |
8 Low (1) |