11 canlyniad
Rhestrir y canlyniadau yn ôl perthnasedd.
Cymraeg: llygru
Saesneg: corrupt
Cymraeg: llygru
Saesneg: pollute
Cymraeg: llwybr llygru
Saesneg: pollution pathway
Cymraeg: perygl llygru
Saesneg: pollution risk
Cymraeg: sylwedd llygru
Saesneg: polluting substance
Cymraeg: ailgyfeirio llwybr llygru
Saesneg: intercepting pollution pathway
Cymraeg: arafu neu atal llwybr llygru
Saesneg: mitigating pollution pathway
Saesneg: diffuse pollution of nutrients into watercourses
Saesneg: The Protocol on Preparedness, Response and Co-operation to Pollution Incidents by Hazardous and Noxious Substances
Cymraeg: datblygiad a allai lygru
Saesneg: potentially polluting development
Cymraeg: Diogelu Dŵr Daear rhag cael ei Lygru
Saesneg: Protection of Groundwater against Pollution