Air quality in all three previously occupied zones of the city – Admiralty, Causeway Bay and Mong Kok – has already declined. Photo: Sam Tsang

Hong Kong's air quality falls after Occupy clearance puts traffic back on the roads

Environmental groups claim Occupy has shown the benefit of pedestrian zones

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Air quality in all three previously occupied zones of the city – Admiralty, Causeway Bay and Mong Kok – has already declined. Photo: Sam Tsang
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