Earlier pollution is still creating problems
Emissions from landbased industry have been reduced, but seepage from old landfills and leakage from contaminated soil and sediments still poses a serious problem. In some fjords there are still problems caused by earlier use of pesticides, such as DDT.
Long-range pollution, carried to Norway by wind or ocean currents, is another important source of hazardous substances. Hazardous substances are also transported to coastal waters via rivers.