Crynodeb 24 Awr

Dangosir y crynodiadau llygryddion uchaf a fesurwyd yn ystod y 24 awr diwethaf ledled Cymru isod. Mae graffiau cryno yn dangos y saith diwrnod diwethaf ar gael ar gyfer pob llygrydd yng ngholofn chwith y tabl.

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
Not measured Not measured Not measured 6
Isel (1)
16
Isel (1)
Anglesey Llynfaes
Not measured Not measured Not measured 7
Isel (1)
36
Isel (3)
Anglesey Penhesgyn 3
Not measured Not measured Not measured 10
Isel (1)
21
Isel (2)
Aston Hill
60
Isel (2)
8
Isel (1)
Not measured Not measured Not measured
Caerphilly Blackwood High Street
Not measured 47
Isel (1)
Not measured Not measured 18
Isel (2)
Caerphilly Fochriw
Not measured Not measured Not measured 5
Isel (1)
7
Isel (1)
Caerphilly Islwyn Road Wattsville
Not measured 47
Isel (1)
Not measured Not measured Not measured
Caerphilly White Street
Not measured 82
Isel (2)
Not measured Not measured 20
Isel (2)
Cardiff Centre
42
Isel (2)
48
Isel (1)
2
Isel (1)
20
Isel (2)
23
Isel (2)
Cardiff Newport Road
Not measured 78
Isel (2)
Not measured Not measured 26
Isel (2)
Chepstow A48
Not measured 57
Isel (1)
Not measured 19
Isel (2)
21
Isel (2)
Cimla Road / Victoria Gardens
Not measured 78
Isel (2)
Not measured Not measured Not measured
Cwmbran
39
Isel (2)
23
Isel (1)
Not measured Not measured 16
Isel (1)
Hafod-yr-ynys Roadside
Not measured 133
Isel (2)
Not measured Not measured Not measured
Marchlyn Mawr
74
Isel (3)
3
Isel (1)
Not measured Not measured Not measured
Nantgarw Road
Not measured 58
Isel (1)
Not measured Not measured Not measured
Narberth
35
Isel (2)
11
Isel (1)
5
Isel (1)
8
Isel (1)
10
Isel (1)
Newport M4 Junction 25
23
Isel (1)
50
Isel (1)
Not measured Not measured Not measured
Newport St Julians Comp School
Not measured 69
Isel (2)
Not measured 15
Isel (2)
19
Isel (2)
Port Talbot Dyffryn School
Not measured Not measured Not measured Not measured 32
Isel (2)
Port Talbot Little Warren
Not measured Not measured Not measured Not measured 35
Isel (3)
Port Talbot Margam
17
Isel (1)
51
Isel (1)
2
Isel (1)
No Data 29
Isel (2)
Port Talbot Prince Street 2
Not measured Not measured Not measured 19
Isel (2)
26
Isel (2)
Port Talbot Twll-yn-y-Wal Park
Not measured Not measured Not measured Not measured 26
Isel (2)
Rhondda Glyncoch Garth Avenue
Not measured Not measured Not measured Not measured 33
Isel (2)
Rhondda Mountain Ash
Not measured 87
Isel (2)
Not measured Not measured Not measured
Rhondda Pontypridd Gelliwastad Rd
Not measured 78
Isel (2)
Not measured Not measured Not measured
Rhondda-Cynon-Taf Broadway
Not measured Not measured Not measured Not measured Not measured
Swansea Cwm Level Park
Not measured Not measured Not measured Not measured Not measured
Swansea Hafod DOAS
21
Isel (1)
89
Isel (2)
Not measured Not measured Not measured
Swansea Morfa Road NOX
Not measured Not measured Not measured Not measured Not measured
Swansea Morriston Roadside
Not measured Not measured Not measured Not measured Not measured
Swansea Port Tennant Roadside
Not measured 58
Isel (1)
Not measured 26
Isel (3)
Not measured
Swansea Roadside
Not measured 67
Isel (1)
Not measured 21
Isel (2)
30
Isel (2)
Swansea St Thomas DOAS
42
Isel (2)
87
Isel (2)
10
Isel (1)
Not measured Not measured
Swansea Station Court High Street
Not measured Not measured Not measured Not measured Not measured
Twynyrodyn
Not measured Not measured Not measured Not measured Not measured
V Glamorgan Windsor Road Penarth
25
Isel (1)
57
Isel (1)
Not measured Not measured 18
Isel (2)
Wrexham
Not measured 74
Isel (2)
16
Isel (1)
13
Isel (2)
16
Isel (1)