Whilst the industrial and commercial, and the construction and demolition waste components are measured periodically through surveys, more regular and up-to-date data is available on household waste.
Er bod y cydrannau diwydiannol a masnachol, a gwastraff adeiladu a dymchwel yn cael eu mesur o bryd i’w gilydd drwy arolygon, mae data mwy rheolaidd a chyfredol ar gael ar wastraff cartrefi.