Workers leave a factory in rural Gaoyi county, known for its ceramics production, near Shijiazhuang, Hebei province in December. Shijiazhuang saw the biggest improvement in PM2.5 levels in late 2017. Photo: Reuters

Northern cities met Beijing’s winter 2017 air quality targets - but what about 2018?

Levels of PM2.5 were cut in all 28 cities but unfavourable weather may hamper efforts in January and February, according to environment ministry

Topic |   China pollution

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Workers leave a factory in rural Gaoyi county, known for its ceramics production, near Shijiazhuang, Hebei province in December. Shijiazhuang saw the biggest improvement in PM2.5 levels in late 2017. Photo: Reuters
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