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Coal dust turns white snow black in Siberian town - Phys.org
phys.org
Anatoly Volkov, the director of the Prokopyevskaya coal plant, said some emissions escape and "we can't tackle coal dust in the streets.".
In Siberia, Toxic Black Snow Reveals the Toll of Coal Mining ...
www.smithsonianmag.com
Anatoly Volkov, director of the Prokopyevskaya coal plant, offered a potential explanation for the snow in an interview with Russian state TV, ...
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