Find out more about how pupils from Ysgol Gynradd Llandeilo, Richmond Park School, and Ysgol Ffwrnes participated in finding ways to improve air quality around their schools.
Dysgwch fwy am sut y bu disgyblion o Ysgol Gynradd Llandeilo, Ysgol Parc Waundew, ac Ysgol Ffwrnes wrthi'n dod o hyd i ffyrdd o wella ansawdd aer yng nghyffiniau eu hysgolion.