Pedestrians cover their noses to guard against the poor air quality in the busy streets in Causeway Bay. Photo: SCMP

Delta air quality improves, but roadside pollution worse in Hong Kong

Clean-ups at power plants and tighter controls on vehicle emissions cited as key factors

Topic |   Hong Kong air pollution

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Pedestrians cover their noses to guard against the poor air quality in the busy streets in Causeway Bay. Photo: SCMP
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