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: 11/05/2024 10:00 |
69 Isel (3) |
6 Isel (1) |
Not measured | Not measured | Not measured |
|
Bridgend Park Street Updated: 11/05/2024 11:00 |
Not measured | 15 Isel (1) |
Not measured | Not measured | 17 Isel (2) |
|
Caerphilly Blackwood High Street Updated: 11/05/2024 07:00 |
Not measured | 10 Isel (1) |
Not measured | Not measured | 21 Isel (2) |
|
Caerphilly Fochriw Updated: 11/05/2024 09:00 |
Not measured | Not measured | Not measured | 10 Isel (1) |
16 Isel (1) |
|
Caerphilly Islwyn Road Wattsville Updated: 11/05/2024 11:00 |
Not measured | 8 Isel (1) |
Not measured | Not measured | Not measured |
|
Caerphilly White Street Updated: 11/05/2024 07:00 |
Not measured | 25 Isel (1) |
Not measured | Not measured | 15 Isel (1) |
|
Cardiff Castle Street Updated: 11/05/2024 10:00 |
Not measured | 23 Isel (1) |
Not measured | 16 Isel (2) |
28 Isel (2) |
|
Cardiff Centre Updated: 11/05/2024 10:00 |
47 Isel (2) |
8 Isel (1) |
1 Isel (1) |
14 Isel (2) |
22 Isel (2) |
|
Cardiff Newport Road Updated: 11/05/2024 10:00 |
Not measured | 23 Isel (1) |
Not measured | Not measured | 25 Isel (2) |
|
Chepstow A48 Updated: 11/05/2024 10:00 |
Not measured | 31 Isel (1) |
Not measured | 12 Isel (2) |
20 Isel (2) |
|
Cimla Road / Victoria Gardens Updated: 07/05/2024 11:00 |
Not measured | No Data | Not measured | Not measured | Not measured |
|
Cwmbran Crownbridge Updated: 11/05/2024 10:00 |
51 Isel (2) |
3 Isel (1) |
Not measured | Not measured | 20 Isel (2) |
|
Hafod-yr-ynys Hill Roadside Updated: 11/05/2024 10:00 |
Not measured | 18 Isel (1) |
Not measured | Not measured | Not measured |
|
Marchlyn Mawr Updated: 11/05/2024 10:00 |
No Data | 2 Isel (1) |
Not measured | Not measured | Not measured |
|
Nantgarw Road Updated: 11/05/2024 09:00 |
Not measured | 12 Isel (1) |
Not measured | Not measured | Not measured |
|
Narberth Updated: 11/05/2024 10:00 |
91 Isel (3) |
9 Isel (1) |
7 Isel (1) |
12 Isel (2) |
22 Isel (2) |
|
Newport M4 Junction 25 Updated: 11/05/2024 11:00 |
37 Isel (2) |
64 Isel (1) |
Not measured | Not measured | Not measured |
|
Newport St Julians Comp School Updated: 11/05/2024 10:00 |
Not measured | 13 Isel (1) |
Not measured | 12 Isel (2) |
19 Isel (2) |
|
Port Talbot Dyffryn School Updated: 11/05/2024 10:00 |
Not measured | Not measured | Not measured | 13 Isel (2) |
20 Isel (2) |
|
Port Talbot Little Warren Updated: 11/05/2024 10:00 |
Not measured | Not measured | Not measured | 15 Isel (2) |
35 Isel (3) |
|
Port Talbot Margam Updated: 11/05/2024 10:00 |
69 Isel (3) |
6 Isel (1) |
2 Isel (1) |
15 Isel (2) |
30 Isel (2) |
|
Port Talbot Prince Street 2 Updated: 11/05/2024 10:00 |
Not measured | Not measured | Not measured | 10 Isel (1) |
23 Isel (2) |
|
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: 11/05/2024 11:00 |
Not measured | Not measured | Not measured | 12 Isel (2) |
31 Isel (2) |
|
Rhondda Mountain Ash Updated: 11/05/2024 04:00 |
Not measured | 14 Isel (1) |
Not measured | Not measured | Not measured |
|
Rhondda Pontypridd Gelliwastad Rd Updated: 11/05/2024 11:00 |
Not measured | 24 Isel (1) |
Not measured | Not measured | Not measured |
|
Rhondda-Cynon-Taf Broadway Updated: 11/05/2024 11:00 |
Not measured | 13 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Cwm Level Park Updated: 11/05/2024 10:00 |
27 Isel (1) |
17 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Hafod DOAS Updated: 11/05/2024 10:00 |
36 Isel (2) |
27 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Morfa Road NOX Updated: 10/05/2024 19:00 |
Not measured | 42 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Morriston Roadside Updated: 10/05/2024 14:00 |
No Data | No Data | Not measured | No Data | Not measured |
|
Swansea Port Tennant Roadside Updated: 10/05/2024 13:00 |
Not measured | No Data | Not measured | No Data | Not measured |
|
Swansea Roadside Updated: 11/05/2024 10:00 |
Not measured | 19 Isel (1) |
Not measured | 16 Isel (2) |
22 Isel (2) |
|
Swansea St Thomas DOAS Updated: 11/05/2024 10:00 |
47 Isel (2) |
13 Isel (1) |
6 Isel (1) |
Not measured | Not measured |
|
Swansea Station Court High Street Updated: 10/05/2024 14:00 |
Not measured | No Data | Not measured | Not measured | Not measured |
|
Twynyrodyn Updated: 02/07/2019 24:00 |
Not measured | Not measured | Not measured | No Data | No Data |
|
Wrexham Updated: 11/05/2024 10:00 |
Not measured | 9 Isel (1) |
2 Isel (1) |
14 Isel (2) |
22 Isel (2) |
|
Wrexham Chirk Updated: 11/05/2024 11:00 |
Not measured | 12 Isel (1) |
Not measured | 3 Isel (1) |
18 Isel (2) |
|
Wrexham Chirk Community Hospital Updated: 11/05/2024 11:00 |
Not measured | 9 Isel (1) |
Not measured | 5 Isel (1) |
21 Isel (2) |