Air pollution in Hong Kong posing serious health risk to residents as toxic cloud hangs over city

A toxic cloud hung over Hong Kong on Monday, posing a serious health risk to residents in three towns in the New Territories Heavy pollution drove down air quality across the city and, as of 6pm, the Environmental Protection Department’s Air Quality Health Index for Tuen Mun, Yeun Long and Tung Chung was 10+ – the highest level – which falls in the serious health risk category. The AQHIs, which alert the public to the short-term health risk of air pollution, are reported on a...