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Air Pollution
Smog chokes Beijing marathon, but should be gone for APEC
Smog chokes Beijing marathon, but should be gone for APEC

When cold wind didn’t arrive as expected, participants in the annual Beijing Marathon had to endure the 26-mile race in the thick smog surrounding the city. But world leaders coming to China’s capital for an APEC summit in November won’t need to put all their hope for clean air on the gusts of nature. Many Beijing marathoners donned face masks as race organizers warned runners before the event on Sunday morning to “make decisions according to their own condition.” By race time, PM2.5 levels -- that’s hazardous particulate matter smaller than 2.5 micrometers -- reached 344 micrograms per cubic meter, a level deemed “hazardous” and nearly 14...

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