Cafodd y feirws mewn dŵr gwastraff ei fonitro hefyd i fesur llwyddiant y cyfnod clo cyntaf a rhennir data hefyd â system Profi Olrhain Diogelu Cymru iddynt gael gwybod ble mae’r achosion diweddaraf.
The amount of virus in wastewater has already been used to monitor the success of the first lockdown period and the data is shared with the Welsh Test Trace Protect system to inform where new outbreaks may be.