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 5
Isel (1)
21
Isel (2)
Anglesey Llynfaes
Not measured Not measured Not measured 6
Isel (1)
20
Isel (2)
Anglesey Penhesgyn 3
Not measured Not measured Not measured 5
Isel (1)
17
Isel (2)
Aston Hill
104
Cymedrol (4)
9
Isel (1)
Not measured Not measured Not measured
Caerphilly Blackwood High Street
Not measured 32
Isel (1)
Not measured Not measured 24
Isel (2)
Caerphilly Fochriw
Not measured Not measured Not measured 8
Isel (1)
18
Isel (2)
Caerphilly Islwyn Road Wattsville
Not measured 28
Isel (1)
Not measured Not measured Not measured
Caerphilly White Street
Not measured No Data Not measured Not measured 21
Isel (2)
Cardiff Centre
Not measured Not measured Not measured Not measured Not measured
Cardiff Newport Road
Not measured 72
Isel (2)
Not measured Not measured 27
Isel (2)
Chepstow A48
Not measured 53
Isel (1)
Not measured 15
Isel (2)
26
Isel (2)
Cimla Road / Victoria Gardens
Not measured 45
Isel (1)
Not measured Not measured Not measured
Cwmbran
97
Isel (3)
21
Isel (1)
Not measured Not measured 26
Isel (2)
Hafod-yr-ynys Roadside
Not measured 88
Isel (2)
Not measured Not measured Not measured
Marchlyn Mawr
No Data 5
Isel (1)
Not measured Not measured Not measured
Nantgarw Road
Not measured 25
Isel (1)
Not measured Not measured Not measured
Narberth
Not measured Not measured Not measured Not measured Not measured
Newport M4 Junction 25
50
Isel (2)
93
Isel (2)
Not measured Not measured Not measured
Newport St Julians Comp School
Not measured 42
Isel (1)
Not measured 12
Isel (2)
22
Isel (2)
Port Talbot Dyffryn School
Not measured Not measured Not measured Not measured 26
Isel (2)
Port Talbot Little Warren
Not measured Not measured Not measured Not measured 82
Uchel (7)
Port Talbot Margam
94
Isel (3)
11
Isel (1)
2
Isel (1)
12
Isel (2)
21
Isel (2)
Port Talbot Prince Street 2
Not measured Not measured Not measured 9
Isel (1)
20
Isel (2)
Port Talbot Twll-yn-y-Wal Park
Not measured Not measured Not measured Not measured 23
Isel (2)
Rhondda Glyncoch Garth Avenue
Not measured Not measured Not measured Not measured 23
Isel (2)
Rhondda Mountain Ash
Not measured 58
Isel (1)
Not measured Not measured Not measured
Rhondda Pontypridd Gelliwastad Rd
Not measured 49
Isel (1)
Not measured Not measured Not measured
Rhondda-Cynon-Taf Broadway
Not measured 43
Isel (1)
Not measured Not measured Not measured
Swansea Cwm Level Park
Not measured Not measured Not measured Not measured Not measured
Swansea Hafod DOAS
65
Isel (2)
68
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 48
Isel (1)
Not measured 13
Isel (2)
37
Isel (3)
Swansea St Thomas DOAS
85
Isel (3)
49
Isel (1)
52
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
55
Isel (2)
39
Isel (1)
Not measured Not measured 27
Isel (2)
Wrexham
Not measured 35
Isel (1)
1
Isel (1)
13
Isel (2)
22
Isel (2)