Life behind a mask — China's cities still choking on smog
from Deutsche Welle via USA Today
For the first time in a long time, China's northeastern provinces are looking up at blue winter skies. Last year, the government introduced legislation to drastically reduce coal-fired heating in Beijing and 27 other major cities. The concentration of toxic fine air particles — also known as PM2.5 — in these northeastern cities fell 33 percent last year. But impressive as this sounds, citizens of China's great metropolises won't be putting away their pollution masks just yet.
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