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: 23/02/2019 11:00 |
Not measured | Not measured | Not measured | 11 Isel (1) |
32 Isel (2) |
|
Anglesey Felin Cafnan Updated: 23/02/2019 11:00 |
Not measured | Not measured | Not measured | 7 Isel (1) |
24 Isel (2) |
|
Anglesey Llynfaes Updated: 23/02/2019 11:00 |
Not measured | Not measured | Not measured | 15 Isel (2) |
33 Isel (2) |
|
Anglesey Penhesgyn 3 Updated: 23/02/2019 11:00 |
Not measured | Not measured | Not measured | 12 Isel (2) |
28 Isel (2) |
|
Aston Hill Updated: 23/02/2019 11:00 |
61 Isel (2) |
7 Isel (1) |
Not measured | Not measured | Not measured |
|
Caerphilly Blackwood High Street Updated: 23/02/2019 08:00 |
Not measured | 30 Isel (1) |
Not measured | Not measured | 30 Isel (2) |
|
Caerphilly Fochriw Updated: 23/02/2019 10:00 |
Not measured | Not measured | Not measured | 23 Isel (2) |
27 Isel (2) |
|
Caerphilly Islwyn Road Wattsville Updated: 23/02/2019 12:00 |
Not measured | 33 Isel (1) |
Not measured | Not measured | Not measured |
|
Caerphilly White Street Updated: 23/02/2019 08:00 |
Not measured | 56 Isel (1) |
Not measured | Not measured | 35 Isel (3) |
|
Cardiff Centre Updated: 23/02/2019 11:00 |
12 Isel (1) |
41 Isel (1) |
4 Isel (1) |
50 Cymedrol (6) |
59 Cymedrol (5) |
|
Cardiff Newport Road Updated: 23/02/2019 11:00 |
Not measured | 59 Isel (1) |
Not measured | Not measured | 62 Cymedrol (5) |
|
Chepstow A48 Updated: 23/02/2019 11:00 |
Not measured | 41 Isel (1) |
Not measured | 37 Cymedrol (4) |
48 Isel (3) |
|
Cimla Road / Victoria Gardens Updated: 23/02/2019 07:00 |
Not measured | 23 Isel (1) |
Not measured | Not measured | Not measured |
|
Cwmbran Updated: 23/02/2019 11:00 |
8 Isel (1) |
32 Isel (1) |
Not measured | Not measured | 27 Isel (2) |
|
Hafod-yr-ynys Roadside Updated: 23/02/2019 11:00 |
Not measured | 83 Isel (2) |
Not measured | Not measured | Not measured |
|
Marchlyn Mawr Updated: 25/11/2018 03:00 |
No Data | No Data | Not measured | Not measured | Not measured |
|
Nantgarw Road Updated: 23/02/2019 10:00 |
Not measured | 40 Isel (1) |
Not measured | Not measured | Not measured |
|
Narberth Updated: 23/02/2019 11:00 |
54 Isel (2) |
11 Isel (1) |
3 Isel (1) |
18 Isel (2) |
28 Isel (2) |
|
Newport M4 Junction 25 Updated: 23/02/2019 12:00 |
3 Isel (1) |
48 Isel (1) |
Not measured | Not measured | Not measured |
|
Newport St Julians Comp School Updated: 23/02/2019 10:00 |
Not measured | 45 Isel (1) |
Not measured | 33 Isel (3) |
41 Isel (3) |
|
Port Talbot Dyffryn School Updated: 23/02/2019 12:00 |
Not measured | Not measured | Not measured | Not measured | 36 Isel (3) |
|
Port Talbot Little Warren Updated: 23/02/2019 12:00 |
Not measured | Not measured | Not measured | Not measured | 125 Uchel Lawn (10) |
|
Port Talbot Margam Updated: 23/02/2019 11:00 |
63 Isel (2) |
15 Isel (1) |
1 Isel (1) |
25 Isel (3) |
32 Isel (2) |
|
Port Talbot Prince Street 2 Updated: 22/02/2019 06:00 |
Not measured | Not measured | Not measured | No Data | No Data |
|
Port Talbot Twll-yn-y-Wal Park Updated: 23/02/2019 12:00 |
Not measured | Not measured | Not measured | Not measured | 34 Isel (3) |
|
Rhondda Glyncoch Garth Avenue Updated: 12/10/2018 01:00 |
Not measured | Not measured | Not measured | Not measured | No Data |
|
Rhondda Mountain Ash Updated: 23/02/2019 08:00 |
Not measured | 68 Isel (2) |
Not measured | Not measured | Not measured |
|
Rhondda Pontypridd Gelliwastad Rd Updated: 23/02/2019 07:00 |
Not measured | 26 Isel (1) |
Not measured | Not measured | Not measured |
|
Rhondda-Cynon-Taf Broadway Updated: 23/02/2019 12:00 |
Not measured | 45 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Cwm Level Park Updated: 23/02/2019 08:00 |
No Data | No Data | Not measured | Not measured | Not measured |
|
Swansea Hafod DOAS Updated: 23/02/2019 10:00 |
39 Isel (2) |
43 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Morfa Road NOX Updated: 23/02/2019 10:00 |
Not measured | 42 Isel (1) |
Not measured | Not measured | Not measured |
|
Swansea Morriston Roadside Updated: 22/02/2019 09:00 |
No Data | No Data | Not measured | No Data | Not measured |
|
Swansea Roadside Updated: 23/02/2019 11:00 |
Not measured | 44 Isel (1) |
Not measured | 35 Isel (3) |
58 Cymedrol (4) |
|
Swansea St Thomas DOAS Updated: 23/02/2019 08:00 |
No Data | No Data | No Data | Not measured | Not measured |
|
Swansea Station Court High Street Updated: 23/02/2019 08:00 |
Not measured | No Data | Not measured | Not measured | Not measured |
|
Twynyrodyn Updated: 30/11/2018 24:00 |
Not measured | Not measured | Not measured | No Data | No Data |
|
V Glamorgan Windsor Road Penarth Updated: 23/02/2019 06:00 |
6 Isel (1) |
34 Isel (1) |
Not measured | Not measured | 38 Isel (3) |
|
Wrexham Updated: 27/11/2018 15:00 |
Not measured | No Data | No Data | No Data | No Data |