16 canlyniad
Rhestrir y canlyniadau yn ôl perthnasedd.
Cymraeg: llygryddion
Saesneg: pollutants
Cymraeg: llygryddion organig parhaus
Saesneg: persistent organic pollutants
Saesneg: EPER
Saesneg: European Pollutant Emission Register
Saesneg: Pollutant Release and Transfer Register
Saesneg: Pollutant Release and Transfer Registers
Saesneg: PRTR
Saesneg: Persistent Organic Pollutant Directive
Saesneg: Persistent Organic Pollutants Regulations 2007
Saesneg: E-PRTR
Saesneg: European Pollutant Release and Transfer Register
Saesneg: The Persistent Organic Pollutants (EU Exit) Regulations 2018
Saesneg: The Persistent Organic Pollutants (Amendment) (EU Exit) Regulations 2018
Saesneg: The Persistent Organic Polltants (Amendment) (EU Exit) Regulations 2019
Saesneg: Persistent Organic Pollutants (Amendment) (EU Exit) Regulations 2020
Saesneg: The Persistent Organic Pollutants (Amendment) (EU Exit) Regulations 2022