Pollution of heavy metals and other toxins in the sea around the country is generally well below international standards, according to a new report by Matís on changes in the marine environment around the country (AMSUM 2008).
The concentration of cadmium in Icelandic mussels is higher than in mussels from the waters of Europe and America.
Since 1989, an annual monitoring project of pollutants in the marine environment of Iceland has been underway. The project is funded by the Ministry for the Environment and partly by Matís. The Environment Agency is the administrator of the project.
Various pollutants in the ocean can enter marine organisms or organisms that feed on seafood. In many cases, this pollution is man-made and there is growing concern about this development. Pollutants are transported by air and sea currents from mainland Europe and America as well as pollution from Iceland. It is therefore important to monitor the amount of pollutants in Iceland, both in the environment and in the organisms that live in the country. It is also important to be able to compare the state of the marine life around Iceland with the situation in other countries, not least because of the importance of marine products to the nation.
Matís' report (Monitoring of the marine biosphere around Iceland in 2007 - 2008) presents the results of the monitoring project for the years 2007 and 2008. The study measures the heavy metals lead, cadmium, mercury, copper and zinc, arsenic and selenium, the persistent organic pollutants HCH, HCB, PCB, Chloride, trans-nonachlor, toxaphen, DDT and PBDE. The aim of the monitoring project is to identify changes that may occur in the concentration of trace elements in the marine environment around the country during a certain period and between different ocean and coastal areas. Among other things, the research is important for the sale of Icelandic seafood in foreign markets, where it can be demonstrated with scientific data that Icelandic fish is caught in an unpolluted environment.
The report states that the concentration of heavy metals such as mercury is very low. However, the concentration of cadmium has sometimes been higher in the marine environment in Iceland than in more southerly areas. However, the amount of cadmium is low in the organisms studied, for example in the range of 0.1-1 mg / kg in mussels. The high concentration of cadmium in Iceland is believed to have natural causes as there is no evidence of human-caused cadmium pollution. Thus, for example, cadmium levels in mussels have been higher in recent years in various places that are far from residential areas and commercial activities, such as in Mjóafjörður, than in Hvalfjörður and Straumsvík. Persistent organic pollutants are low in mussels and cod in Iceland. CB-153 is the highest concentration substance in mussels while DDE is the highest concentration in cod.
For further information, please contact Hrönn Ólína Jörundsdóttir, hronn.o.jorundsdottir@matis.is.