Environment Act 1995 (Feasibility Study for Nitrogen Dioxide Compliance) Air Quality Direction 2018, file type: PDF, file size: 149 KB
Cyfarwyddyd Ansawdd Aer Deddf yr Amgylchedd 1995 (Astudiaeth Ddichonoldeb ar gyfer Cy dymffurfedd Nitrogen Deuocsid) 2019: Caerffili, math o ffeil: PDF, maint ffeil: 225 KB