The snow is blue in St. Petersburg, Russia, and no one knows why.
Residents there are more than a bit perturbed, as officials remain uncertain about what’s causing their snow to turn such an unusual hue. They’re in the process of testing samples right now, but the worry is that it may be toxic.
What could be the cause, and is it dangerous? Let’s just say blue is not a normal color for snow. Not in this universe.
As you can see in the above video, the snow appears a very light and festive blue color. And while it may very well be mysterious, the fact that some was found near a recently demolished chemical and pharmaceutical plant might just give us a clue.
Experts suggest the color may be the result of cobalt or methylene blue, which as the Daily Mail reports, are “used in some medical treatments.”
Perhaps it’s not so unusual, then. Russia has a bit of a history with multi-colored snow, after all. In 2015, snow in Chelyabinsk (which you may remember as that place that got wrecked by a meteorite in 2013) turned blue after some Easter egg dye was ejected from a nearby factory.
In November 2016, snow turned to green slush in Pervouralsk, after an old underground tank containing chromium burst and spewed out its contents onto the roads above.
And then you had the Siberian Orange Snow Incident of 2007, when orange snow fell over a reported 1,500 square kilometers in Omsk Oblast. This event may have been caused by a monster sandstorm in Kazakhstan, but its true origins are unknown to this day.
Whatever the cause, and whether the snow is blue, green, orange or yellow, one piece of advice should always be followed: Try not to eat any.
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