Mae'r Bil hwn yn gam allweddol o ran cyflwyno mesurau a fydd yn cyfrannu at wella ansawdd yr amgylchedd aer yng Nghymru ac at leihau effeithiau llygredd aer ar iechyd pobl, bioamrywiaeth, yr amgylchedd naturiol a'n heconomi.
This Bill is a key step inbringing forward measures that will contribute to improvements in the quality of the air environment in Wales and reduce the impacts of air pollution on human health, biodiversity, the natural environment and our economy.