However, a blacklist could potentially contain further details on individuals who have reported concerns, for example, regarding health and safety and / or environmental matters.
Fodd bynnag, gallai cosbrestr gynnwys fanylion am eraill unigolion sydd wedi adrodd am bryderon, er enghraifft, materion sy'n gysylltiedig ag iechyd a diogelwch a / neu'r amgylchedd.