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 Not measured Not measured
Anglesey Llynfaes
Not measured Not measured Not measured 14
Isel (2)
24
Isel (2)
Anglesey Penhesgyn 3
Not measured Not measured Not measured 8
Isel (1)
13
Isel (1)
Aston Hill
73
Isel (3)
10
Isel (1)
Not measured Not measured Not measured
Bridgend Park Street
Not measured Not measured Not measured Not measured Not measured
Caerphilly Blackwood High Street
Not measured 29
Isel (1)
Not measured Not measured 34
Isel (3)
Caerphilly Fochriw
Not measured Not measured Not measured Not measured Not measured
Caerphilly Islwyn Road Wattsville
Not measured 29
Isel (1)
Not measured Not measured Not measured
Caerphilly White Street
Not measured 43
Isel (1)
Not measured Not measured 24
Isel (2)
Cardiff Castle Street
Not measured 47
Isel (1)
Not measured 16
Isel (2)
24
Isel (2)
Cardiff Centre
64
Isel (2)
36
Isel (1)
7
Isel (1)
15
Isel (2)
19
Isel (2)
Cardiff Newport Road
Not measured 51
Isel (1)
Not measured Not measured 28
Isel (2)
Chepstow A48
Not measured 29
Isel (1)
Not measured 20
Isel (2)
23
Isel (2)
Cimla Road / Victoria Gardens
Not measured 70
Isel (2)
Not measured Not measured Not measured
Cwmbran Crownbridge
70
Isel (3)
21
Isel (1)
Not measured Not measured 17
Isel (2)
Hafod-yr-ynys Roadside
Not measured 74
Isel (2)
Not measured Not measured Not measured
Marchlyn Mawr
80
Isel (3)
3
Isel (1)
Not measured Not measured Not measured
Nantgarw Road
Not measured 49
Isel (1)
Not measured Not measured Not measured
Narberth
68
Isel (3)
6
Isel (1)
No Data 11
Isel (1)
14
Isel (1)
Newport M4 Junction 25
48
Isel (2)
45
Isel (1)
Not measured Not measured Not measured
Newport St Julians Comp School
Not measured 25
Isel (1)
Not measured 13
Isel (2)
17
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 21
Isel (2)
Port Talbot Margam
64
Isel (2)
64
Isel (1)
2
Isel (1)
19
Isel (2)
35
Isel (3)
Port Talbot Prince Street 2
Not measured Not measured Not measured 19
Isel (2)
38
Isel (3)
Port Talbot Twll-yn-y-Wal Park
Not measured Not measured Not measured Not measured 35
Isel (3)
Rhondda Glyncoch Garth Avenue
Not measured Not measured Not measured Not measured 15
Isel (1)
Rhondda Mountain Ash
Not measured 50
Isel (1)
Not measured Not measured Not measured
Rhondda Pontypridd Gelliwastad Rd
Not measured 69
Isel (2)
Not measured Not measured Not measured
Rhondda-Cynon-Taf Broadway
Not measured 38
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
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 Not measured Not measured Not measured Not measured
Swansea Roadside
Not measured 59
Isel (1)
Not measured 19
Isel (2)
31
Isel (2)
Swansea St Thomas DOAS
Not measured Not measured Not measured 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 53
Isel (1)
7
Isel (1)
23
Isel (2)
30
Isel (2)
Wrexham Chirk
Not measured 61
Isel (1)
Not measured No Data No Data