Reduction in tail pipe emissions will improve local air quality, helping to reduce respiratory illnesses and other health issues associated with air pollution
Bydd gostyngiad mewn allyriadau o bibellau mwg yn gwella ansawdd aer lleol, gan help i leihau achosion o salwch anadlol a phroblemau iechyd eraill sy’n gysylltiedig â llygredd aer.