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)
32
Isel (2)
Anglesey Felin Cafnan
Not measured Not measured Not measured 7
Isel (1)
24
Isel (2)
Anglesey Llynfaes
Not measured Not measured Not measured 16
Isel (2)
35
Isel (3)
Anglesey Penhesgyn 3
Not measured Not measured Not measured 12
Isel (2)
30
Isel (2)
Aston Hill
64
Isel (2)
11
Isel (1)
Not measured Not measured Not measured
Caerphilly Blackwood High Street
Not measured 82
Isel (2)
Not measured Not measured 30
Isel (2)
Caerphilly Fochriw
Not measured Not measured Not measured 23
Isel (2)
27
Isel (2)
Caerphilly Islwyn Road Wattsville
Not measured 64
Isel (1)
Not measured Not measured Not measured
Caerphilly White Street
Not measured 93
Isel (2)
Not measured Not measured 35
Isel (3)
Cardiff Centre
32
Isel (1)
63
Isel (1)
4
Isel (1)
52
Cymedrol (6)
59
Cymedrol (5)
Cardiff Newport Road
Not measured 85
Isel (2)
Not measured Not measured 62
Cymedrol (5)
Chepstow A48
Not measured 89
Isel (2)
Not measured 37
Cymedrol (4)
48
Isel (3)
Cimla Road / Victoria Gardens
Not measured 67
Isel (1)
Not measured Not measured Not measured
Cwmbran
31
Isel (1)
80
Isel (2)
Not measured Not measured 27
Isel (2)
Hafod-yr-ynys Roadside
Not measured 141
Isel (3)
Not measured Not measured Not measured
Marchlyn Mawr
No Data No Data Not measured Not measured Not measured
Nantgarw Road
Not measured 70
Isel (2)
Not measured Not measured Not measured
Narberth
57
Isel (2)
11
Isel (1)
3
Isel (1)
18
Isel (2)
28
Isel (2)
Newport M4 Junction 25
13
Isel (1)
80
Isel (2)
Not measured Not measured Not measured
Newport St Julians Comp School
Not measured 76
Isel (2)
Not measured 33
Isel (3)
41
Isel (3)
Port Talbot Dyffryn School
Not measured Not measured Not measured Not measured 36
Isel (3)
Port Talbot Little Warren
Not measured Not measured Not measured Not measured 125
Uchel Lawn (10)
Port Talbot Margam
79
Isel (3)
19
Isel (1)
2
Isel (1)
25
Isel (3)
32
Isel (2)
Port Talbot Prince Street 2
Not measured Not measured Not measured No Data No Data
Port Talbot Twll-yn-y-Wal Park
Not measured Not measured Not measured Not measured 34
Isel (3)
Rhondda Glyncoch Garth Avenue
Not measured Not measured Not measured Not measured No Data
Rhondda Mountain Ash
Not measured 102
Isel (2)
Not measured Not measured Not measured
Rhondda Pontypridd Gelliwastad Rd
Not measured 68
Isel (2)
Not measured Not measured Not measured
Rhondda-Cynon-Taf Broadway
Not measured 65
Isel (1)
Not measured Not measured Not measured
Swansea Cwm Level Park
55
Isel (2)
49
Isel (1)
Not measured Not measured Not measured
Swansea Hafod DOAS
49
Isel (2)
88
Isel (2)
Not measured Not measured Not measured
Swansea Morfa Road NOX
Not measured 58
Isel (1)
Not measured Not measured Not measured
Swansea Morriston Roadside
62
Isel (2)
95
Isel (2)
Not measured No Data Not measured
Swansea Roadside
Not measured 69
Isel (2)
Not measured 35
Isel (3)
58
Cymedrol (4)
Swansea St Thomas DOAS
69
Isel (3)
71
Isel (2)
54
Isel (1)
Not measured Not measured
Swansea Station Court High Street
Not measured 82
Isel (2)
Not measured Not measured Not measured
Twynyrodyn
Not measured Not measured Not measured No Data No Data
V Glamorgan Windsor Road Penarth
8
Isel (1)
66
Isel (1)
Not measured Not measured 38
Isel (3)
Wrexham
Not measured No Data No Data No Data No Data