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 Hill Updated: 16/07/2024 07:00 |
49 Low (2) |
2 Low (1) |
Not measured | Not measured | Not measured |
Bridgend Park Street Updated: 16/07/2024 06:00 |
Not measured | 12 Low (1) |
Not measured | Not measured | 10 Low (1) |
Caerphilly Blackwood High Street Updated: 16/07/2024 04:00 |
Not measured | 6 Low (1) |
Not measured | Not measured | 8 Low (1) |
Caerphilly Fochriw Updated: 16/07/2024 05:00 |
Not measured | Not measured | Not measured | 3 Low (1) |
No data |
Caerphilly Islwyn Road Wattsville Updated: 16/07/2024 05:00 |
Not measured | 11 Low (1) |
Not measured | Not measured | Not measured |
Caerphilly White Street Updated: 16/07/2024 04:00 |
Not measured | 3 Low (1) |
Not measured | Not measured | 6 Low (1) |
Cardiff Castle Street Updated: 16/07/2024 06:00 |
Not measured | 18 Low (1) |
Not measured | 4 Low (1) |
10 Low (1) |
Cardiff Centre Updated: 16/07/2024 07:00 |
62 Low (2) |
13 Low (1) |
1 Low (1) |
4 Low (1) |
8 Low (1) |
Cardiff Newport Road Updated: 16/07/2024 07:00 |
Not measured | 13 Low (1) |
Not measured | Not measured | 8 Low (1) |
Chepstow A48 Updated: 16/07/2024 07:00 |
Not measured | 35 Low (1) |
Not measured | No data | No data |
Cimla Road / Victoria Gardens Updated: 28/06/2024 09:00 |
Not measured | No data | Not measured | Not measured | Not measured |
Cwmbran Crownbridge Updated: 16/07/2024 07:00 |
56 Low (2) |
8 Low (1) |
Not measured | Not measured | 11 Low (1) |
Hafod-yr-ynys Hill Roadside Updated: 16/07/2024 08:00 |
Not measured | 15 Low (1) |
Not measured | Not measured | Not measured |
Marchlyn Mawr Updated: 16/07/2024 06:00 |
No data | 2 Low (1) |
Not measured | Not measured | Not measured |
Nantgarw Road Updated: 16/07/2024 04:00 |
Not measured | 6 Low (1) |
Not measured | Not measured | Not measured |
Narberth Updated: 16/07/2024 07:00 |
61 Low (2) |
4 Low (1) |
2 Low (1) |
4 Low (1) |
7 Low (1) |
Newport M4 Junction 25 Updated: 16/07/2024 06:00 |
31 Low (1) |
73 Low (2) |
Not measured | Not measured | Not measured |
Newport St Julians Comp School Updated: 16/07/2024 07:00 |
Not measured | 7 Low (1) |
Not measured | 4 Low (1) |
9 Low (1) |
Port Talbot Dyffryn School Updated: 16/07/2024 06:00 |
Not measured | Not measured | Not measured | 3 Low (1) |
No data |
Port Talbot Little Warren Updated: 16/07/2024 06:00 |
Not measured | Not measured | Not measured | 3 Low (1) |
7 Low (1) |
Port Talbot Margam Updated: 16/07/2024 07:00 |
59 Low (2) |
21 Low (1) |
1 Low (1) |
7 Low (1) |
10 Low (1) |
Port Talbot Prince Street 2 Updated: 16/07/2024 06:00 |
Not measured | Not measured | Not measured | 3 Low (1) |
No data |
Port Talbot Twll-yn-y-Wal Park Updated: 18/03/2021 12:00 |
Not measured | Not measured | Not measured | Not measured | No data |
Rhondda Glyncoch Garth Avenue Updated: 16/07/2024 06:00 |
Not measured | Not measured | Not measured | 4 Low (1) |
12 Low (1) |
Rhondda Mountain Ash Updated: 15/07/2024 20:00 |
Not measured | No data | Not measured | Not measured | Not measured |
Rhondda Pontypridd Gelliwastad Rd Updated: 15/07/2024 14:00 |
Not measured | 16 Low (1) |
Not measured | Not measured | Not measured |
Rhondda-Cynon-Taf Broadway Updated: 15/07/2024 19:00 |
Not measured | No data | Not measured | Not measured | Not measured |
Swansea Cwm Level Park Updated: 09/07/2024 09:00 |
No data | No data | Not measured | Not measured | Not measured |
Swansea Hafod DOAS Updated: 08/07/2024 24:00 |
No data | No data | Not measured | Not measured | Not measured |
Swansea Morfa Road NOX Updated: 09/07/2024 09:00 |
Not measured | No data | Not measured | Not measured | Not measured |
Swansea Morriston Roadside Updated: 05/07/2024 13:00 |
No data | No data | Not measured | No data | Not measured |
Swansea Port Tennant Roadside Updated: 09/07/2024 06:00 |
Not measured | No data | Not measured | No data | Not measured |
Swansea Roadside Updated: 16/07/2024 07:00 |
Not measured | 12 Low (1) |
Not measured | 5 Low (1) |
6 Low (1) |
Swansea St Thomas DOAS Updated: 09/07/2024 10:00 |
No data | No data | No data | Not measured | Not measured |
Swansea Station Court High Street Updated: 09/07/2024 07:00 |
Not measured | No data | Not measured | Not measured | Not measured |
Wrexham Updated: 16/07/2024 07:00 |
Not measured | 18 Low (1) |
4 Low (1) |
6 Low (1) |
8 Low (1) |
Wrexham Chirk Updated: 30/05/2024 11:00 |
Not measured | No data | Not measured | 2 Low (1) |
9 Low (1) |
Wrexham Chirk Community Hospital Updated: 16/07/2024 06:00 |
Not measured | 15 Low (1) |
Not measured | 2 Low (1) |
7 Low (1) |