Hong Kong breathed a little easier this year as the number of hours of air pollution reaching “high health risk” and beyond fell by half the recent average.
But much of the decline was due to wetter, windier weather in what are traditionally two of the most polluted months, January and October, according to a study by an environmental group.
Hongkongers were exposed to 1,480 hours of air of high health risk this year, meaning “7” or above on the government’s 11-...
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