Dangosir y lefelau presennol yn y tabl isod – yn dangos crynodiadau a, lle’n berthnasol, y mynegai a’r bandiau cyfatebol.
Lefelau Presennol
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 |
---|---|---|---|---|---|
Aston Expressway A494 Deeside Updated: 12/12/2024 20:00 |
Not measured | 49 Low (1) |
Not measured | Not measured | Not measured |
Aston Hill Updated: 12/12/2024 20:00 |
32 Low (1) |
11 Low (1) |
Not measured | Not measured | Not measured |
Bridgend Park Street Updated: 12/12/2024 20:00 |
Not measured | 44 Low (1) |
Not measured | Not measured | 17 Low (2) |
Caerphilly Blackwood High Street Updated: 03/12/2024 08:00 |
Not measured | No data | Not measured | Not measured | No data |
Caerphilly Fochriw Updated: 12/12/2024 20:00 |
Not measured | Not measured | Not measured | 5 Low (1) |
7 Low (1) |
Caerphilly Islwyn Road Wattsville Updated: 12/12/2024 18:00 |
Not measured | 24 Low (1) |
Not measured | Not measured | Not measured |
Caerphilly White Street Updated: 12/12/2024 19:00 |
Not measured | 43 Low (1) |
Not measured | Not measured | 19 Low (2) |
Cardiff Castle Street Updated: 12/12/2024 20:00 |
Not measured | 40 Low (1) |
Not measured | 7 Low (1) |
16 Low (1) |
Cardiff Centre Updated: 12/12/2024 20:00 |
36 Low (2) |
25 Low (1) |
2 Low (1) |
6 Low (1) |
9 Low (1) |
Cardiff Newport Road Updated: 12/12/2024 20:00 |
Not measured | 37 Low (1) |
Not measured | Not measured | 15 Low (1) |
Chepstow A48 Updated: 12/12/2024 18:00 |
Not measured | 36 Low (1) |
Not measured | 9 Low (1) |
13 Low (1) |
Cimla Road / Victoria Gardens Updated: 28/06/2024 09:00 |
Not measured | No data | Not measured | Not measured | Not measured |
Cwmbran Crownbridge Updated: 12/12/2024 20:00 |
47 Low (2) |
15 Low (1) |
Not measured | Not measured | 10 Low (1) |
Hafod-yr-ynys Hill Roadside Updated: 12/12/2024 18:00 |
Not measured | 36 Low (1) |
Not measured | Not measured | Not measured |
Marchlyn Mawr Updated: 12/12/2024 20:00 |
No data | 5 Low (1) |
Not measured | Not measured | Not measured |
Nantgarw Road Updated: 12/12/2024 10:00 |
Not measured | 35 Low (1) |
Not measured | Not measured | Not measured |
Narberth Updated: 12/12/2024 20:00 |
52 Low (2) |
5 Low (1) |
1 Low (1) |
8 Low (1) |
11 Low (1) |
Newport M4 Junction 25 Updated: 12/12/2024 20:00 |
28 Low (1) |
31 Low (1) |
Not measured | Not measured | Not measured |
Newport M4 Junction 25 West Updated: 12/12/2024 20:00 |
Not measured | 32 Low (1) |
Not measured | Not measured | Not measured |
Newport St Julians Comp School Updated: 12/12/2024 20:00 |
Not measured | 19 Low (1) |
Not measured | 6 Low (1) |
9 Low (1) |
Port Talbot Dyffryn School Updated: 12/12/2024 01:00 |
Not measured | Not measured | Not measured | No data | 10 Low (1) |
Port Talbot Little Warren Updated: 12/12/2024 20:00 |
Not measured | Not measured | Not measured | 7 Low (1) |
8 Low (1) |
Port Talbot M4 Junction 41 Updated: 12/12/2024 20:00 |
Not measured | 22 Low (1) |
Not measured | Not measured | Not measured |
Port Talbot Margam Updated: 12/12/2024 20:00 |
45 Low (2) |
20 Low (1) |
No data | 5 Low (1) |
8 Low (1) |
Port Talbot Prince Street 2 Updated: 12/12/2024 20:00 |
Not measured | Not measured | Not measured | 6 Low (1) |
9 Low (1) |
Rhondda Glyncoch Garth Avenue Updated: 12/12/2024 20:00 |
Not measured | Not measured | Not measured | 7 Low (1) |
14 Low (1) |
Rhondda Mountain Ash Updated: 12/12/2024 08:00 |
Not measured | No data | Not measured | Not measured | Not measured |
Rhondda Pontypridd Gelliwastad Rd Updated: 12/12/2024 16:00 |
Not measured | 26 Low (1) |
Not measured | Not measured | Not measured |
Rhondda-Cynon-Taf Broadway Updated: 12/12/2024 20:00 |
Not measured | 33 Low (1) |
Not measured | Not measured | Not measured |
Rhondda-Cynon-Taf Pontypridd A470 Updated: 12/12/2024 20:00 |
Not measured | 27 Low (1) |
Not measured | Not measured | Not measured |
Swansea Cwm Level Park Updated: 07/12/2024 01:00 |
No data | No data | Not measured | Not measured | Not measured |
Swansea Hafod DOAS Updated: 07/12/2024 14:00 |
No data | No data | Not measured | Not measured | Not measured |
Swansea Morfa Road NOX Updated: 07/12/2024 05:00 |
Not measured | No data | Not measured | Not measured | Not measured |
Swansea Morriston Roadside Updated: 14/11/2024 15:00 |
No data | No data | Not measured | No data | Not measured |
Swansea Port Tennant Roadside Updated: 06/12/2024 15:00 |
Not measured | No data | Not measured | No data | Not measured |
Swansea Roadside Updated: 12/12/2024 20:00 |
Not measured | 46 Low (1) |
Not measured | 7 Low (1) |
17 Low (2) |
Swansea St Thomas DOAS Updated: 07/12/2024 14:00 |
No data | No data | No data | Not measured | Not measured |
Swansea Station Court High Street Updated: 06/12/2024 16:00 |
Not measured | No data | Not measured | Not measured | Not measured |
Wrexham Updated: 12/12/2024 20:00 |
Not measured | 50 Low (1) |
4 Low (1) |
14 Low (2) |
18 Low (2) |
Wrexham A483 Updated: 12/12/2024 20:00 |
Not measured | 58 Low (1) |
Not measured | Not measured | Not measured |
Wrexham Chirk Updated: 12/12/2024 20:00 |
Not measured | 28 Low (1) |
Not measured | 9 Low (1) |
36 Low (3) |
Wrexham Chirk Community Hospital Updated: 12/12/2024 20:00 |
Not measured | 27 Low (1) |
Not measured | 5 Low (1) |
9 Low (1) |