A New Culprit Is Identified in China’s Choking Smog
Researchers say that emissions of formaldehyde from autos and chemical and oil refineries play a larger role in China’s smog than previously known.
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A New Culprit Is Identified in China’s Choking Smog
Researchers say that emissions of formaldehyde from autos and chemical and oil refineries play a larger role in China’s smog than previously known.