He has also been a member of the Welsh Government Air Quality Direction Independent Review Panel since 2018 and sits on the Welsh Parliament Cross Party Group - A Clean Air Act for Wales.
Bu hefyd yn aelod o Banel Adolygu Annibynnol Cyfarwyddyd Ansawdd Aer Llywodraeth Cymru ers 2018 ac mae'n aelod o Grŵp Trawsbleidiol Senedd Cymru - Deddf Aer Glân i Gymru.