Experts attributed the haze in Beijing, which has lasted for
several days, to poor atmospheric diffusion because of
unseasonably weak cold air currents from the north.
Visibility in most parts of Beijing dropped to less than 500
metres (546 yards), the China Meteorological Administration
said.
"I didn't expect the smog to be so bad these days. The masks
I've brought are almost used up," said a 24-year-old Beijing
tourist surnamed Gao.
In some places, heavy winter fog was adding to the murky
conditions and visibility was less than 50 metres in parts of
Hebei province and Tianjin city.
Moderate to heavy air pollution was expected in the
Beijing-Tianjin-Hebei area and surrounding cities until
Thursday, with short bouts of severe conditions, the environment
ministry said after a meeting of its agencies.
While the north of the region will improve in the first half of
this month, pollution may persist in southern areas, it said.
"The overall environment is getting better these years but in
recent days the smog has come back. We're not sure what's
exactly causing it," said an 82-year-old Beijing resident
surnamed Liu.
Temperatures were unusually similar to early summer, with some
places recording 10 degrees Celsius above normal and likely to
persist until Thursday, forecasters said, adding that records
are likely to be broken in big cities such as Jinan, Zhengzhou
and Shijiazhuang.
Beijing's observatory in the last ten days of October recorded
an average temperature for 3.4 degree Celsius higher than
normal, breaking records for the same period since 1961, local
media said.
The average temperature for the month was second highest in 62
years, after 2006's record.
But from Thursday night, cold air is expected to push
temperatures lower, possibly to new lows.
(Reporting by Liz Lee, Ethan Wang and Xiaoyu Yin; Editing by
Robert Birsel and Sonali Paul)
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