Statistics Norway reviewed figures between 2010 and 2011 and announced on Tuesday that pollution had gone up by five percent in that time period. In 2011, Norwegians released 6,400 tonnes of chemicals that are potentially dangerous to the environment.
Copper II oxide is used to protect boat hubs and is also used to impregnate fishing nets to make sure they do not begin to rot.
At the same time, however, researchers were happy to note that the level of what the European Union terms CMR chemicals (carcinogenic, mutagenic or toxic to reproduction), reached their lowest level in Norway since 2002.
Statistics Norway (Statistisk sentralbyrå - SSB) publishes its annual tally of known pollutants based on the product registry with the Environment Directorate (Miljødirektoratet), to which importers and producers of toxins must report their stocks.