Keren shayGroup:14
Baltic seeThe baltic see is a barckish mediterranean sea located inNorthen Europen.It’s located by the Scandinevian Panins...
Polluted seaThe Baltic Sea has been exposed to an extensive use of chemicals from the very beginning of the industrializ...
Harmful substances deriving from human activity reach the Baltic Sea from many different sources: Oil spills release larg...
The hazardous substancesTributyltin (TBT) Triphenyltin (TPhT) Bromodiphenyl ethers (BDEs)Medium-chain chlorinated paraff...
Observations of hazardous with thehighest Contamination Ratiosubstancesfor the abbreviations. Substances with the highes...
DDT/DDE 3/9 9 Tributyltin 11 8 Benz[a]anthracene 9 7 Cadmium 7 5 Dioxins/DL-PCBs 4 3 Nonylphenol 4 3 Zinc 4 3 VDSI-...
How to avoid the pollutionhuman activities at sea, in the coastal zone and in the surrounding land-based catchment area a...
http://www.ices.dk/projects/balticsea/baltic%20sea- rse%20thulin%20and%20andrusaitis.pdfhttp://www.helcom.fi/stc/files/Pu...
Baltic see work
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Baltic see work

  1. 1. Keren shayGroup:14
  2. 2. Baltic seeThe baltic see is a barckish mediterranean sea located inNorthen Europen.It’s located by the Scandinevian Paninsula,the main land ofEurope.It drains into the Kattegat by way of the, the Kattegatcontinues through Skagerrak into the North Sea and theAtlantic Ocean.Baltic Sea might be considered to be bordered on itsnorthern edge by the Gulf of Bothnia, on its northeasternedge by the Gulf of Finland, and on its eastern edge by theGulf of Riga. These various gulfs can also be consideredpart of the seaThe Baltic region known because of its resources of amber.
  3. 3. Polluted seaThe Baltic Sea has been exposed to an extensive use of chemicals from the very beginning of the industrialization of the region in the late 19th centuryand its marine environment has one of the longesthistories of contamination in the world.Consequently the Baltic has often been referred to as the most polluted sea in the world.
  4. 4. Harmful substances deriving from human activity reach the Baltic Sea from many different sources: Oil spills release large amounts of hydrocarbons into the sea.  Radioactive fallout reaches the Baltic either airborne or carried by sea currents.Heavy metals such as cadmium, lead and mercury are directlyharmful to the environment. They accumulate on the sea bottom in sediments and can be converted into a soluble form, released into the water andreturned to the nutrient chain when conditions onthe sea bottom change through oxygen depletioneutrophication, overfishing, toxic contaminants, and alien (i.e. foreign) species.
  5. 5. The hazardous substancesTributyltin (TBT) Triphenyltin (TPhT) Bromodiphenyl ethers (BDEs)Medium-chain chlorinated paraffin (MCCP)Endosulfan..Those materials and more are absorbs in fish, as sediments, also acummulate in organisms and may haveunfavourable effects on baltic marine environment.eutrophication, overfishing, toxic contaminants, and alien (i.e. foreign) species. 
  6. 6. Observations of hazardous with thehighest Contamination Ratiosubstancesfor the abbreviations. Substances with the highest CRs units, number of observations %: PCBs 27 20 Lead 13 9 Mercury 3 9 137Cesium 12 9 
  7. 7. DDT/DDE 3/9 9 Tributyltin 11 8 Benz[a]anthracene 9 7 Cadmium 7 5 Dioxins/DL-PCBs 4 3 Nonylphenol 4 3 Zinc 4 3 VDSI-index 3 2 Arsenic 2 1 DEHP 2 1 HCHs 2 1 Nickel 2 1 Octylphenol 2 1 PBDE 2 1 Anthracene 1 1 Benzo[ghi]perylene 1 1 Benzo[k]fl uoranthene 1 1 Copper 1 1 Fluorene 1 1 PAH-metabolites 1 1 Total 137 100 
  8. 8. How to avoid the pollutionhuman activities at sea, in the coastal zone and in the surrounding land-based catchment area are the main causes of the problems inthe Baltic Sea region.Thus, it is necessary to work together to benefit the marin ecosystem and the human communities living around it. To this end developed in the Baltic Sea Regional Projects such as: (BSRP) as a mechanism for enhanced management of the common resources of the Baltic SeaEcosystem, facilitating cooperative action and coordination between the main regulatory and advisory bodies in the region (i.e. HELCOM,IBSFC, ICES) and their associated coastal countries, with a view to developing integrated approaches to land, coastal and marinemanagement.Of cource that for save the sea each person should be responsible about his activities to not have bad influence on the environment ofthe Baltic sea.
  9. 9. http://www.ices.dk/projects/balticsea/baltic%20sea- rse%20thulin%20and%20andrusaitis.pdfhttp://www.helcom.fi/stc/files/Publications/Proceedings/bsep120B.pdfhttp://www.cohiba-project.net/http://www.helcom.fi/stc/files/Publications/Proceedings/bsep119.pdfhttp://www.baltic.vtt.fi/demo/balful.html

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