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 11
Isel (1)
17
Isel (2)
Anglesey Llynfaes
Not measured Not measured Not measured 11
Isel (1)
19
Isel (2)
Anglesey Penhesgyn 3
Not measured Not measured Not measured 9
Isel (1)
14
Isel (1)
Aston Hill
86
Isel (3)
1
Isel (1)
Not measured Not measured Not measured
Caerphilly Blackwood High Street
Not measured 99
Isel (2)
Not measured Not measured 16
Isel (1)
Caerphilly Fochriw
Not measured Not measured Not measured 5
Isel (1)
13
Isel (1)
Caerphilly Islwyn Road Wattsville
Not measured 39
Isel (1)
Not measured Not measured Not measured
Caerphilly White Street
Not measured 46
Isel (1)
Not measured Not measured 18
Isel (2)
Cardiff Centre
70
Isel (3)
30
Isel (1)
11
Isel (1)
5
Isel (1)
19
Isel (2)
Cardiff Newport Road
Not measured 21
Isel (1)
Not measured Not measured 19
Isel (2)
Chepstow A48
Not measured 80
Isel (2)
Not measured 36
Cymedrol (4)
44
Isel (3)
Cimla Road / Victoria Gardens
Not measured 68
Isel (2)
Not measured Not measured Not measured
Cwmbran
84
Isel (3)
12
Isel (1)
Not measured Not measured 20
Isel (2)
Hafod-yr-ynys Roadside
Not measured 75
Isel (2)
Not measured Not measured Not measured
Marchlyn Mawr
82
Isel (3)
1
Isel (1)
Not measured Not measured Not measured
Nantgarw Road
Not measured 50
Isel (1)
Not measured Not measured Not measured
Narberth
80
Isel (3)
3
Isel (1)
2
Isel (1)
5
Isel (1)
10
Isel (1)
Newport M4 Junction 25
64
Isel (2)
65
Isel (1)
Not measured Not measured Not measured
Newport St Julians Comp School
Not measured 34
Isel (1)
Not measured 8
Isel (1)
17
Isel (2)
Port Talbot Dyffryn School
Not measured Not measured Not measured Not measured 43
Isel (3)
Port Talbot Little Warren
Not measured Not measured Not measured Not measured 27
Isel (2)
Port Talbot Margam
84
Isel (3)
30
Isel (1)
70
Isel (1)
11
Isel (1)
38
Isel (3)
Port Talbot Prince Street 2
Not measured Not measured Not measured 10
Isel (1)
36
Isel (3)
Port Talbot Twll-yn-y-Wal Park
Not measured Not measured Not measured Not measured 36
Isel (3)
Rhondda Glyncoch Garth Avenue
Not measured Not measured Not measured Not measured 13
Isel (1)
Rhondda Mountain Ash
Not measured Not measured Not measured Not measured Not measured
Rhondda Pontypridd Gelliwastad Rd
Not measured 93
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
88
Isel (3)
86
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 Roadside
Not measured 42
Isel (1)
Not measured 6
Isel (1)
23
Isel (2)
Swansea St Thomas DOAS
94
Isel (3)
47
Isel (1)
2
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
76
Isel (3)
19
Isel (1)
Not measured Not measured 20
Isel (2)
Wrexham
Not measured 24
Isel (1)
6
Isel (1)
6
Isel (1)
10
Isel (1)