Several World War II shipwrecks in Australian waters, holding unknown quantities of oil and chemicals, have been deteriorating ever since they sank more than 80 years ago. Several World War II shipwrecks in Australian waters, holding unknown quantities of oil and chemicals, have been deteriorating ever since they sank more than 80 years ago. Water Pollution, Marine Transport Industry, Oceans and Reefs, Research Organisations, Travel and Tourism (Lifestyle and Leisure), Marine Parks, World War 2, History Latest business news