Smog layer dimming Hong Kong's nighttime skyline.
Smog levels in Hong Kong have returned to the record high level registered in 2000, prompting warnings from the city’s Environmental Protection Department for people with heart or respiratory illnesses.
Air pollution from a cluster of factories in southern China had dipped over the past year due to the global economic slowdown.
But the smog has returned to Hong Kong over the past two months as those factories in the neighboring Chinese province of Guangdong ramped up production to match an increased demand for goods.
Roadside air monitors recorded a “very high” reading of 174 Saturday night in the city’s Central district, equalling the previous record set nine years ago.
Any reading over 101 prompts warnings to people with health problems to limit physical activity and to remain indoors as much as possible.
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