According to the Health and Safety Executive (HSE), there were around 20 deaths from accidental CO poisoning in England and Wales for the period Autumn 2020-21.
Yn ôl yr Awdurdod Gweithredol Iechyd a Diogelwch (HSE), cafodd tua 20 o bobl eu lladd trwy gael eu gwenwyno ar ddamwain gan CO yng Nghymru a Lloegr yn y flwyddyn Hydref – Hydref 2020-21.