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 |
|---|---|---|---|---|---|
|
Anglesey Brynteg Updated: 25/01/2022 17:00 |
Not measured | Not measured | Not measured | 13 Isel (2) |
25 Isel (2) |
|
Anglesey Llynfaes Updated: 25/01/2022 17:00 |
Not measured | Not measured | Not measured | 3 Isel (1) |
8 Isel (1) |
|
Anglesey Penhesgyn 3 Updated: 25/01/2022 17:00 |
Not measured | Not measured | Not measured | 9 Isel (1) |
27 Isel (2) |
|
Aston Hill Updated: 25/01/2022 17:00 |
43 Isel (2) |
7 Isel (1) |
Not measured | Not measured | Not measured |
|
Bridgend Park Street Updated: 25/01/2022 19:00 |
Not measured | 54 Isel (1) |
Not measured | Not measured | 29 Isel (2) |
|
Caerphilly Blackwood High Street Updated: 25/01/2022 13:00 |
Not measured | 50 Isel (1) |
Not measured | Not measured | 25 Isel (2) |
|
Caerphilly Fochriw Updated: 25/01/2022 01:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Caerphilly Islwyn Road Wattsville Updated: 25/01/2022 18:00 |
Not measured | 46 Isel (1) |
Not measured | Not measured | Not measured |
|
Caerphilly White Street Updated: 25/01/2022 13:00 |
Not measured | 51 Isel (1) |
Not measured | Not measured | 31 Isel (2) |
|
Cardiff Castle Street Updated: 25/01/2022 18:00 |
Not measured | 69 Isel (2) |
Not measured | 27 Isel (3) |
37 Isel (3) |
|
Cardiff Centre Updated: 25/01/2022 18:00 |
26 Isel (1) |
39 Isel (1) |
3 Isel (1) |
27 Isel (3) |
30 Isel (2) |
|
Cardiff Newport Road Updated: 25/01/2022 18:00 |
Not measured | 60 Isel (1) |
Not measured | Not measured | 36 Isel (3) |
|
Chepstow A48 Updated: 25/01/2022 18:00 |
Not measured | 68 Isel (2) |
Not measured | 26 Isel (3) |
34 Isel (3) |
|
Cimla Road / Victoria Gardens Updated: 25/01/2022 07:00 |
Not measured | 33 Isel (1) |
Not measured | Not measured | Not measured |
|
Cwmbran Crownbridge Updated: 25/01/2022 18:00 |
26 Isel (1) |
37 Isel (1) |
Not measured | Not measured | 17 Isel (2) |
|
Hafod-yr-ynys Roadside Updated: 25/01/2022 18:00 |
Not measured | 69 Isel (2) |
Not measured | Not measured | Not measured |
|
Marchlyn Mawr Updated: 25/01/2022 19:00 |
61 Isel (2) |
1 Isel (1) |
Not measured | Not measured | Not measured |
|
Nantgarw Road Updated: 25/01/2022 10:00 |
Not measured | 44 Isel (1) |
Not measured | Not measured | Not measured |
|
Narberth Updated: 25/01/2022 18:00 |
36 Isel (2) |
14 Isel (1) |
3 Isel (1) |
25 Isel (3) |
31 Isel (2) |
|
Newport M4 Junction 25 Updated: 25/01/2022 19:00 |
7 Isel (1) |
78 Isel (2) |
Not measured | Not measured | Not measured |
|
Newport St Julians Comp School Updated: 24/01/2022 09:00 |
Not measured | No Data | Not measured | 24 Isel (3) |
29 Isel (2) |
|
Port Talbot Dyffryn School Updated: 20/01/2021 22:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Port Talbot Little Warren Updated: 19/01/2022 14:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Port Talbot Margam Updated: 25/01/2022 18:00 |
17 Isel (1) |
50 Isel (1) |
5 Isel (1) |
25 Isel (3) |
32 Isel (2) |
|
Port Talbot Prince Street 2 Updated: 25/01/2022 18:00 |
Not measured | Not measured | Not measured | 24 Isel (3) |
31 Isel (2) |
|
Port Talbot Twll-yn-y-Wal Park Updated: 18/03/2021 12:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Rhondda Glyncoch Garth Avenue Updated: 25/01/2022 19:00 |
Not measured | Not measured | Not measured | Not measured | 34 Isel (3) |
|
Rhondda Mountain Ash Updated: 25/01/2022 13:00 |
Not measured | 69 Isel (2) |
Not measured | Not measured | Not measured |
|
Rhondda Pontypridd Gelliwastad Rd Updated: 25/01/2022 07:00 |
Not measured | 63 Isel (1) |
Not measured | Not measured | Not measured |
|
Rhondda-Cynon-Taf Broadway Updated: 25/01/2022 18:00 |
Not measured | 50 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Cwm Level Park Updated: 25/01/2022 18:00 |
10 Isel (1) |
52 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Hafod DOAS Updated: 08/01/2022 02:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Swansea Morfa Road NOX Updated: 21/01/2022 09:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Swansea Morriston Roadside Updated: 19/11/2021 15:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Swansea Port Tennant Roadside Updated: 25/01/2022 18:00 |
Not measured | 54 Isel (1) |
Not measured | 27 Isel (3) |
Not measured |
|
Swansea Roadside Updated: 25/01/2022 18:00 |
Not measured | 55 Isel (1) |
Not measured | 28 Isel (3) |
36 Isel (3) |
|
Swansea St Thomas DOAS Updated: 25/01/2022 18:00 |
28 Isel (1) |
85 Isel (2) |
20 Isel (1) |
Not measured | Not measured |
|
Swansea Station Court High Street Updated: 21/01/2022 09:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Twynyrodyn Updated: 02/07/2019 24:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Wrexham Updated: 25/01/2022 18:00 |
Not measured | 41 Isel (1) |
No Data | 25 Isel (3) |
35 Isel (3) |
|
Wrexham Chirk Updated: 24/01/2022 09:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Wrexham Chirk Community Hospital Updated: 25/01/2022 19:00 |
Not measured | 37 Isel (1) |
Not measured | 7 Isel (1) |
13 Isel (1) |