Russian geochemists warn that bottom sediments of unique lake Baikal contain dioxins and similar toxins, which indicates that pollution from Baikal pulp-and-paper plant goes on.
      
      Last summer “Mir-2” submersible brought samples of bottom sediments of a used-to-be-the-cleanest-lake-in-the-world Baikal, which were forwarded to a laboratory for tests. Analysis showed that concentration of toxic substances didn’t change in lake sediments near Baikal pulp-and-paper plant since 1997.
      
      Natural environment of the area doesn’t contain any dioxins, researchers say, these substances come solely from industrial wastes. Dioxins tend to accumulate in living beings, causing a variety of health disorders.
      
      Source: Science News
      
Author: Anna Kizilova