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Beijing choked by third day of hazardous smog

AFP
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CITY COMES TO A STANDSTILLA Chinese man walking along a railway track in Beijing amid dense smog.PHOTO:AFP
CITY COMES TO A STANDSTILLA Chinese man walking along a railway track in Beijing amid dense smog.PHOTO:AFP

Mask-wearing Beijing residents endured a third day of pollution at hazardous levels on Sunday, as authorities warned that a thick cloud of smog may not lift from the Chinese capital until midweek.

As the dense smog shrouded large swathes of northern China, flights were cancelled and traffic delayed as visibility was reduced to 100 metres in some areas.

'Stay indoors'

Beijing's municipal environment warning centre issued its second alert in two days, warning people to avoid outdoor physical activity.

Air quality in Beijing showed small airborne particles with a diameter small enough to deeply penetrate the lungs at a reading as high as 993 micrograms per cubic metre on Saturday evening, the warning centre said, according to the official Xinhua news agency.

The World Health Organization says the figure for such particles, known as PM2.5, should ideally be no more than 25 micrograms per cubic metre.

"These figures represent extremely bad pollution. Pollutants have gradually accumulated over the course of recent windless days, making the air quality even worse," said Zhu Tong, a professor from the college of environmental sciences and engineering at Peking University.

The pollution is expected to engulf Beijing until Wednesday before wind arrives to blow it away, according to a weather report from the meteorological station, Xinhua said.AFP


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