Despite the period July to September 2021 not being in lockdown there were several factors that could have impacted waste management across the local authorities.
Er nad oedd y cyfnod rhwng Gorffennaf a Medi 2021 yn gyfnod clo, roedd sawl ffactor a allai fod wedi effeithio ar reoli gwastraff ar draws yr awdurdodau lleol.