Dyma’r ardaloedd yng Nghwm Cynon Isaf sy’n rhan o’r cynllun profi torfol:AbercynonDwyrain AberpennarGorllewin AberpennarPenrhiw-ceibrDe Aberaman
The areas in lower Cynon Valley covered in the mass testing pilot areAbercynonMountain Ash EastMountain Ash WestPenrhiwceiberAberaman South