This was published 10 years ago
Beijing pollution before and after photos
As Beijing declared a first ever "red alert" for dangerous smog levels, these photos show some of its most famous sights blanketed by pollution.
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Tiananmen Square is seen in heavy pollution, top, on December 1 and 24 hours later under a clear sky on December 2.Credit:Kevin Frayer
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The Forbidden City is seen in heavy pollution, top, on December 1 and 24 hours later under a clear sky on December 2.Credit:Kevin Frayer/Getty Images
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Tiananmen Square is seen in heavy pollution, top, on December 1 and 24 hours later under a clear sky on December 2.Credit:Kevin Frayer/Getty Images
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The Forbidden City is seen in heavy pollution, top, on December 1 and 24 hours later under a clear sky on December 2.Credit:Kevin Frayer/Getty Images
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Tiananmen Square and the Great Hall of the People is seen in heavy pollution, top, on December 1 and 24 hours later under a clear sky on December 2.Credit:Kevin Frayer/Getty Images
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Tiananmen Square is seen in heavy pollution, top, on December 1 and 24 hours later under a clear sky on December 2.Credit:Kevin Frayer/Getty Images