A woman wearing a mask rides in smog-shrouded Tianjin in northern China. Photo: Xinhua A woman wearing a mask rides in smog-shrouded Tianjin in northern China. Photo: Xinhua
A woman wearing a mask rides in smog-shrouded Tianjin in northern China. Photo: Xinhua

Are falling levels of PM2.5 creating new ozone air pollution woes in Beijing area?

Ozone pollution is getting worse in the capital and its neighbouring cities

Topic |   Beijing air pollution
A woman wearing a mask rides in smog-shrouded Tianjin in northern China. Photo: Xinhua A woman wearing a mask rides in smog-shrouded Tianjin in northern China. Photo: Xinhua
A woman wearing a mask rides in smog-shrouded Tianjin in northern China. Photo: Xinhua
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