Caixin
Dec 04, 2018 06:53 PM
ENVIRONMENT

Amid Tightened Pollution Controls, Smog Still Subject to Changing Winds

Shanghai issued a smog advisory on Nov. 27, when visibility was less than 5 meters (16.4 feet). Photo: VCG
Shanghai issued a smog advisory on Nov. 27, when visibility was less than 5 meters (16.4 feet). Photo: VCG

Four bouts of heavy pollution in November have left residents of Beijing, Tianjin and surrounding Hebei province wondering what happened to the blue skies they had last winter.

After entering the heating season, which lasts roughly from mid-November through March, it is estimated that sulfur dioxide emissions in Beijing, Tianjin and Hebei increased by nearly half, and PM2.5 increased about 30%.

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