Kui laaditav kemikaal jääb vette sattudes ujuma, ei lahustu ega aurustu täielikult, siis peab laadimiskohas olema kasutusvalmis kemikaalile vastupidavast materjalist tehniliselt korras reostustõke.
Any method of mechanical removal will be easier if the oil layer is relatively thick either because the oil has not been allowed to spread out or by using some sort of device to sweep of collect the oil into a smaller area so that the thickness of the layer on the surface is increased. Such a floating barrier is called a boom.
