The data are derived from various physical environment deprivation indicators from WIMD 2019 and ethnic group populations from the 2021 Census.
Daw'r data o ddangosyddion amddifadedd amrywiol mewn perthynas â'r amgylchedd ffisegol o MALlC 2019 a phoblogaethau grwpiau ethnig o Gyfrifiad 2021.