Persistent organic pollutants in liver. HCB – hexachlorobenzene

Pollution: Contaminants in seabirds
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Animal studies show that long time exposure to hexachlorobenzene can harm the liver, immune system, kidneys, and blood and it can produce eruptions and pigmentations of the skin.

Higher levels of hexachlorobenzene can lead to cancer of the liver and thyroid.

When interpreting the background data for hexachlorobenzene, no significant differences between the seabird species were found. This contrasts with the results reported in several published papers. We believe that this can be attributed to differences in the way the data has been collected. The highest mean liver levels of hexachlorobenzene were found in herring gull, great black-backed gull and glaucous gull.

No regional difference or differences between years was found for hexachlorobenzene. The data distribution is however not even, and the data is therefore not well suited for trend analyses.

Levels of HCB in seabird liver 

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