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 8
Isel (1)
16
Isel (1)
Anglesey Felin Cafnan
Not measured Not measured Not measured 20
Isel (2)
36
Isel (3)
Anglesey Llynfaes
Not measured Not measured Not measured 9
Isel (1)
17
Isel (2)
Anglesey Penhesgyn 3
Not measured Not measured Not measured 8
Isel (1)
18
Isel (2)
Aston Hill
142
Cymedrol (6)
13
Isel (1)
Not measured Not measured Not measured
Caerphilly Blackwood High Street
Not measured 30
Isel (1)
Not measured Not measured 28
Isel (2)
Caerphilly Fochriw
Not measured Not measured Not measured 20
Isel (2)
29
Isel (2)
Caerphilly Islwyn Road Wattsville
Not measured 32
Isel (1)
Not measured Not measured Not measured
Caerphilly White Street
Not measured 56
Isel (1)
Not measured Not measured 31
Isel (2)
Cardiff Centre
126
Cymedrol (5)
84
Isel (2)
5
Isel (1)
28
Isel (3)
37
Isel (3)
Cardiff Newport Road
Not measured 83
Isel (2)
Not measured Not measured 37
Isel (3)
Chepstow A48
Not measured 95
Isel (2)
Not measured 28
Isel (3)
36
Isel (3)
Cimla Road / Victoria Gardens
Not measured 55
Isel (1)
Not measured Not measured Not measured
Cwmbran
135
Cymedrol (5)
48
Isel (1)
Not measured Not measured 29
Isel (2)
Hafod-yr-ynys Roadside
Not measured 107
Isel (2)
Not measured Not measured Not measured
Marchlyn Mawr
No Data No Data Not measured Not measured Not measured
Nantgarw Road
Not measured No Data Not measured Not measured Not measured
Narberth
122
Cymedrol (5)
22
Isel (1)
20
Isel (1)
30
Isel (3)
42
Isel (3)
Newport M4 Junction 25
51
Isel (2)
35
Isel (1)
Not measured Not measured Not measured
Newport St Julians Comp School
Not measured 89
Isel (2)
Not measured 25
Isel (3)
33
Isel (2)
Port Talbot Dyffryn School
Not measured Not measured Not measured Not measured 63
Cymedrol (5)
Port Talbot Little Warren
Not measured Not measured Not measured Not measured 99
Uchel (9)
Port Talbot Margam
144
Cymedrol (6)
26
Isel (1)
4
Isel (1)
28
Isel (3)
54
Cymedrol (4)
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 61
Cymedrol (5)
Rhondda Glyncoch Garth Avenue
Not measured Not measured Not measured Not measured No Data
Rhondda Mountain Ash
Not measured 65
Isel (1)
Not measured Not measured Not measured
Rhondda Pontypridd Gelliwastad Rd
Not measured 52
Isel (1)
Not measured Not measured Not measured
Rhondda-Cynon-Taf Broadway
Not measured 54
Isel (1)
Not measured Not measured Not measured
Swansea Cwm Level Park
No Data No Data Not measured Not measured Not measured
Swansea Hafod DOAS
No Data No Data Not measured Not measured Not measured
Swansea Morfa Road NOX
Not measured No Data Not measured Not measured Not measured
Swansea Morriston Roadside
No Data No Data Not measured No Data Not measured
Swansea Roadside
Not measured 52
Isel (1)
Not measured 28
Isel (3)
33
Isel (2)
Swansea St Thomas DOAS
No Data No Data No Data Not measured Not measured
Swansea Station Court High Street
Not measured No Data Not measured Not measured Not measured
Twynyrodyn
Not measured Not measured Not measured No Data No Data
V Glamorgan Windsor Road Penarth
67
Isel (3)
55
Isel (1)
Not measured Not measured 30
Isel (2)
Wrexham
Not measured 62
Isel (1)
1
Isel (1)
27
Isel (3)
37
Isel (3)