Breathtaking: World's 25 Most Beautiful Polluted Sunsets

By Tom Randall - 2011-11-28T03:40:43Z

Photograph by GML/Getty Images

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#1 Ulaanbaatar, Mongolia

An increase of 10 micrograms of fine particulates per cubic meter of air is linked to a significant increase in deaths. That's bad news for sunset watchers in Mongolia, where the average volume of fine particulates is more than 21 times the 13 micrograms measured in Canada.