reported black snow fell twice in one week, causing concerned residents to contact the local environment agency. Naturally many were fearful of the health risks posed by the unusual black snow.
Experts have now discovered the cause of the abnormally coloured snow, though have not yet pinpointed the polluter responsible.
According to the Moscow Times
chemical samples of the snow revealed it "was characteristic of ash formed from coal combustion, citing silicon oxide, aluminum oxide, iron oxide and calcium oxide as the ash's main components.
However, the Federal Service for Natural Resources Use has failed to comment on the health risks of the polluted snow.