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 14
Isel (2)
30
Isel (2)
Anglesey Llynfaes
Not measured Not measured Not measured 4
Isel (1)
8
Isel (1)
Anglesey Penhesgyn 3
Not measured Not measured Not measured 12
Isel (2)
39
Isel (3)
Aston Hill
56
Isel (2)
8
Isel (1)
Not measured Not measured Not measured
Bridgend Park Street
Not measured 64
Isel (1)
Not measured Not measured 28
Isel (2)
Caerphilly Blackwood High Street
Not measured 65
Isel (1)
Not measured Not measured 25
Isel (2)
Caerphilly Fochriw
Not measured Not measured Not measured Not measured Not measured
Caerphilly Islwyn Road Wattsville
Not measured 50
Isel (1)
Not measured Not measured Not measured
Caerphilly White Street
Not measured 65
Isel (1)
Not measured Not measured 31
Isel (2)
Cardiff Castle Street
Not measured 69
Isel (2)
Not measured 27
Isel (3)
37
Isel (3)
Cardiff Centre
41
Isel (2)
39
Isel (1)
3
Isel (1)
27
Isel (3)
30
Isel (2)
Cardiff Newport Road
Not measured 70
Isel (2)
Not measured Not measured 39
Isel (3)
Chepstow A48
Not measured 68
Isel (2)
Not measured 26
Isel (3)
36
Isel (3)
Cimla Road / Victoria Gardens
Not measured 60
Isel (1)
Not measured Not measured Not measured
Cwmbran Crownbridge
48
Isel (2)
38
Isel (1)
Not measured Not measured 16
Isel (1)
Hafod-yr-ynys Roadside
Not measured 88
Isel (2)
Not measured Not measured Not measured
Marchlyn Mawr
60
Isel (2)
4
Isel (1)
Not measured Not measured Not measured
Nantgarw Road
Not measured 44
Isel (1)
Not measured Not measured Not measured
Narberth
51
Isel (2)
21
Isel (1)
4
Isel (1)
25
Isel (3)
31
Isel (2)
Newport M4 Junction 25
26
Isel (1)
78
Isel (2)
Not measured Not measured Not measured
Newport St Julians Comp School
Not measured No Data Not measured 24
Isel (3)
29
Isel (2)
Port Talbot Dyffryn School
Not measured Not measured Not measured Not measured Not measured
Port Talbot Little Warren
Not measured Not measured Not measured Not measured Not measured
Port Talbot Margam
49
Isel (2)
50
Isel (1)
5
Isel (1)
25
Isel (3)
32
Isel (2)
Port Talbot Prince Street 2
Not measured Not measured Not measured 24
Isel (3)
31
Isel (2)
Port Talbot Twll-yn-y-Wal Park
Not measured Not measured Not measured Not measured Not measured
Rhondda Glyncoch Garth Avenue
Not measured Not measured Not measured Not measured 33
Isel (2)
Rhondda Mountain Ash
Not measured 103
Isel (2)
Not measured Not measured Not measured
Rhondda Pontypridd Gelliwastad Rd
Not measured 92
Isel (2)
Not measured Not measured Not measured
Rhondda-Cynon-Taf Broadway
Not measured 50
Isel (1)
Not measured Not measured Not measured
Swansea Cwm Level Park
31
Isel (1)
53
Isel (1)
Not measured Not measured Not measured
Swansea Hafod DOAS
Not measured Not measured 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 57
Isel (1)
Not measured 27
Isel (3)
Not measured
Swansea Roadside
Not measured 67
Isel (1)
Not measured 28
Isel (3)
36
Isel (3)
Swansea St Thomas DOAS
42
Isel (2)
106
Isel (2)
36
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
Wrexham
Not measured 44
Isel (1)
No Data 31
Isel (3)
40
Isel (3)
Wrexham Chirk
Not measured Not measured Not measured Not measured Not measured
Wrexham Chirk Community Hospital
Not measured 34
Isel (1)
Not measured 9
Isel (1)
21
Isel (2)