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| | Geografia d'Europa: material de suport |
 | | The sea is surrounded by Germany, Poland, the Russian Federation, Lithuania, Latvia, Estonia, Finland, Sweden and Denmark. |
 | | In many areas of the Baltic Sea, the strong increase of phosphorus and nitrogen concentrations observed in the 1970s has stopped, with the exception of the Kattegat, the Gulf of Riga and the eastern Gulf of Finland, where the nitrogen concentrations are still increasing. |
 | | The Baltic Sea seal populations are slowly recovering from the reproductive failures, possibly caused by the accumulation of toxic substances. |
| www.ub.es /medame/marbalti.html (4186 words) |
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