The content of ships' waste was analysed on two merchant vessels. The results show a large amount of unnecessary garbage pollution by ships. The disposal at sea of plastic materials, and of all garbage except food waste in certain special areas, is against the Inter-Governmental Marine Consultative Organization (IMCO) 1973 regulations. Ships are ignoring these regulations. The garbage can be a ... [Show full abstract] hazard to man and wildlife, apart from being aesthetically displeasing. It is recommended that more responsibility be put with the shipping companies, owners and suppliers to stop this pollution.