Beijing Air Pollution Off the Charts

[unable to retrieve full-text content]An air-quality monitor atop the U.S. Embassy recently measured an air quality index of 755. Alarmingly, 500 is supposed to be the top of the scale.

Source: http://www.nytimes.com/2013/01/13/science/earth/beijing-air-pollution-off-the-charts.html?partner=rss&emc=rss

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