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: 04/12/2020 06:00 |
Not measured | Not measured | Not measured | 2 Isel (1) |
9 Isel (1) |
|
Anglesey Llynfaes Updated: - |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Anglesey Penhesgyn 3 Updated: - |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Aston Hill Updated: 04/12/2020 09:00 |
61 Isel (2) |
2 Isel (1) |
Not measured | Not measured | Not measured |
|
Caerphilly Blackwood High Street Updated: 04/12/2020 08:00 |
Not measured | 16 Isel (1) |
Not measured | Not measured | 7 Isel (1) |
|
Caerphilly Fochriw Updated: 04/12/2020 01:00 |
Not measured | Not measured | Not measured | 1 Isel (1) |
No Data |
|
Caerphilly Islwyn Road Wattsville Updated: 04/12/2020 09:00 |
Not measured | 53 Isel (1) |
Not measured | Not measured | Not measured |
|
Caerphilly White Street Updated: 04/12/2020 08:00 |
Not measured | 31 Isel (1) |
Not measured | Not measured | No Data |
|
Cardiff Castle Street Updated: 04/12/2020 09:00 |
Not measured | 41 Isel (1) |
Not measured | 5 Isel (1) |
7 Isel (1) |
|
Cardiff Centre Updated: 04/12/2020 09:00 |
49 Isel (2) |
25 Isel (1) |
2 Isel (1) |
3 Isel (1) |
4 Isel (1) |
|
Cardiff Newport Road Updated: 04/12/2020 08:00 |
Not measured | 25 Isel (1) |
Not measured | Not measured | 7 Isel (1) |
|
Chepstow A48 Updated: 04/12/2020 09:00 |
Not measured | 77 Isel (2) |
Not measured | 5 Isel (1) |
7 Isel (1) |
|
Cimla Road / Victoria Gardens Updated: 04/12/2020 07:00 |
Not measured | 39 Isel (1) |
Not measured | Not measured | Not measured |
|
Cwmbran Crownbridge Updated: 04/12/2020 09:00 |
63 Isel (2) |
6 Isel (1) |
Not measured | Not measured | 5 Isel (1) |
|
Hafod-yr-ynys Roadside Updated: 04/12/2020 09:00 |
Not measured | 121 Isel (2) |
Not measured | Not measured | Not measured |
|
Marchlyn Mawr Updated: 04/12/2020 09:00 |
62 Isel (2) |
4 Isel (1) |
Not measured | Not measured | Not measured |
|
Nantgarw Road Updated: 04/12/2020 05:00 |
Not measured | 2 Isel (1) |
Not measured | Not measured | Not measured |
|
Narberth Updated: 04/12/2020 09:00 |
69 Isel (3) |
2 Isel (1) |
2 Isel (1) |
1 Isel (1) |
3 Isel (1) |
|
Newport M4 Junction 25 Updated: 04/12/2020 05:00 |
42 Isel (2) |
No Data | Not measured | Not measured | Not measured |
|
Newport St Julians Comp School Updated: 04/12/2020 09:00 |
Not measured | 27 Isel (1) |
Not measured | 2 Isel (1) |
3 Isel (1) |
|
Port Talbot Dyffryn School Updated: 04/12/2020 10:00 |
Not measured | Not measured | Not measured | Not measured | 5 Isel (1) |
|
Port Talbot Little Warren Updated: 04/12/2020 10:00 |
Not measured | Not measured | Not measured | Not measured | 4 Isel (1) |
|
Port Talbot Margam Updated: 04/12/2020 08:00 |
50 Isel (2) |
22 Isel (1) |
2 Isel (1) |
3 Isel (1) |
7 Isel (1) |
|
Port Talbot Prince Street 2 Updated: 04/12/2020 09:00 |
Not measured | Not measured | Not measured | 3 Isel (1) |
6 Isel (1) |
|
Port Talbot Twll-yn-y-Wal Park Updated: 04/12/2020 10:00 |
Not measured | Not measured | Not measured | Not measured | 6 Isel (1) |
|
Rhondda Glyncoch Garth Avenue Updated: 04/12/2020 10:00 |
Not measured | Not measured | Not measured | Not measured | 3 Isel (1) |
|
Rhondda Mountain Ash Updated: 04/12/2020 08:00 |
Not measured | 45 Isel (1) |
Not measured | Not measured | Not measured |
|
Rhondda Pontypridd Gelliwastad Rd Updated: 04/12/2020 07:00 |
Not measured | 24 Isel (1) |
Not measured | Not measured | Not measured |
|
Rhondda-Cynon-Taf Broadway Updated: 04/12/2020 07:00 |
Not measured | 14 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Cwm Level Park Updated: 04/12/2020 09:00 |
No Data | 22 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Hafod DOAS Updated: 04/12/2020 09:00 |
59 Isel (2) |
42 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Morfa Road NOX Updated: 04/12/2020 09:00 |
Not measured | 48 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Morriston Roadside Updated: 26/11/2020 07:00 |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
Swansea Port Tennant Roadside Updated: 04/12/2020 09:00 |
Not measured | 70 Isel (2) |
Not measured | 4 Isel (1) |
Not measured |
|
Swansea Roadside Updated: 04/12/2020 09:00 |
Not measured | 36 Isel (1) |
Not measured | 4 Isel (1) |
7 Isel (1) |
|
Swansea St Thomas DOAS Updated: 04/12/2020 09:00 |
51 Isel (2) |
49 Isel (1) |
1 Isel (1) |
Not measured | Not measured |
|
Swansea Station Court High Street Updated: 04/12/2020 09:00 |
Not measured | 115 Isel (2) |
Not measured | Not measured | Not measured |
|
Twynyrodyn Updated: - |
Not measured | Not measured | Not measured | Not measured | Not measured |
|
V Glamorgan Windsor Road Penarth Updated: 04/12/2020 06:00 |
38 Isel (2) |
16 Isel (1) |
Not measured | Not measured | 7 Isel (1) |
|
Wrexham Updated: 04/12/2020 09:00 |
Not measured | 16 Isel (1) |
9 Isel (1) |
5 Isel (1) |
7 Isel (1) |
|
Wrexham Chirk Updated: 04/12/2020 10:00 |
Not measured | 11 Isel (1) |
Not measured | No Data | 2 Isel (1) |