Dust can be generated from a variety of activities such as construction/demolition sites and industrial processes which may constitute a statutory nuisance under the Environmental Protection Act 1990.
Gellir cynhyrchu llwch yn sgil amrywiaeth o weithgareddau megis safleoedd adeiladu/dymchwel a phrosesau diwydiannol a all achosi niwsans statudol o dan Ddeddf Diogelu'r Amgylchedd 1990.