Before revision: Sometimes siltation is called sediment pollution, but that is an undesirable term since it is ambiguous and also refers to a chemical contamination of sediments accumulated on the bottom or to pollutants bound to sediment particles.
After revision: Siltation is sometimes referred to by the ambiguous term "sediment pollution", which can also refer, to a chemical contamination of sediments accumulated on the bottom or to pollutants bound to sediment particles.