Heavy metals in muscles. Chromium (Cr)

Pollution: Contaminants in seabirds
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Chromium is an important metal in industry, for example as additive in iron for stainless steel production.

Trivalent chromium (Cr3+) is required in trace amounts for sugar and lipid metabolism in humans and lack of Cr3+ may cause a disease called chromium deficiency. The hexavalent chromium (Cr6+) is however toxic and carcinogenic. The levels of chromium were generally low and more than 30% of the samples were below detection limit in the present survey.

There are no observations of regional or species difference in chromium levels.

Table: Levels chromium (Cr) in seabird muscles 


Levels of cadmium in Black guillemot. Levels in Black guillemot.

Levels of cadmium in Brünnichs guillemot. Levels in Brünnichs guillemot Levels of cadmium in Common eider Levels in Common eider
  Levels of cadmium in Common guillemot Levels in Common guillemot Levels of cadmium in Northern fulmar Levels in Northern fulmar Levels of cadmium in Common eider Levels in Glaucous gull
  Levels of cadmium in Herring gull Levels in Herring gull Levels of cadmium in King eider Levels in King eider Levels of cadmium in Black-legged kittiwake Levels in Black-legged kittiwake
  Levels of cadmium in Little auk Levels in Little auk  Levels of cadmium in Atlantic puffin Levels in Atlantic puffin