A wnaiff y Gweinidog gadarnhau pryd y bydd Llywodraeth Cymru yn cyhoeddi data ar effaith yr ardaloedd prawf 20mya ar ansawdd aer?
Wedi'i ateb gan Y Dirprwy Weinidog Newid Hinsawdd | Wedi'i ateb ar 04/10/2022
Air quality monitoring is being undertaken in Cardiff North, Magor, and Abergavenny.
It is proposed to report on initial findings in Spring 2023 for Cardiff North and Magor. Technical reasons have delayed the setting up of sensors in Abergavenny, therefore a report for this site will not be available until later in the year.
A final report will be published after 18 months of monitoring at all locations.