Persistent organic pollutants in liver. ΣDDT – sum of 5 individual dichloro-diphenyl-trichloroethanes

Pollution: Contaminants in seabirds
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DDT was developed as the first of the modern synthetic insecticides in the 1940s. It was initially used with great effect to combat malaria, typhus, and other insect-borne human diseases among military and civilian populations.

It was also used for insect control in crop and livestock production, institutions, homes, and gardens. Today, DDT is classified as a probable human carcinogen. There have been restrictions on the use of DDT since 1972. However, DDT has a limited use in mosquitoes control and prevention of malaria.

The two predatory bird species; great black-backed gull and glaucous gull had significantly higher liver concentrations of DDT than the other seabird species. The variation and uneven distribution of the data make it difficult to analyze regional and temporal differences and no such differences were found. 

Levels of ΣDDT in seabird liver 

Species Species Species
Levels of liver-ΣDDT in Brunnichs guillemot. Levels in Black guillemot Levels of liver-ΣDDT in Brünnichs guillemot. Levels in Brünnichs guillemot Levels of liver-ΣDDT in Common eider Levels in Common eider
Levels of liver-ΣDDT in Common guillemot Levels in Common guillemot Levels of liver-ΣDDT in Northern fulmar Levels in Northern fulmar Levels of liver-ΣDDT in Common eider Levels in Great black-backed gull
Levels of liver-ΣDDT in Common eider Levels in Glaucous gull Levels of liver-ΣDDT in Herring gull Levels in Herring gull Levels of liver-ΣDDT in King eider Levels in King eider
Levels of liver-ΣDDT in Black-legged kittiwake Levels in Black-legged kittiwake  Levels of liver-ΣDDT in Little auk Levels in Little auk  Levels of liver-ΣDDT in Levels of liver-SDDT in Long-tailed duck. Levels in Levels of liver-SDDT in Long-tailed duck.
Levels of liver-ΣDDT in Atlantic puffin Levels in Atlantic puffin
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