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December 6, 2010

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Shanghai set for smoggy day

SHANGHAI is expected to have a slightly polluted day today, mainly due to breathable particles in the air, the local environmental monitoring watchdog said yesterday.

The air quality this month won't improve much more than the levels in November, as November and December are usually the months with poorer air quality.

According to local records, the lowest number of polluted days in December was six days and the highest was nine.

The poor air quality in December is usually caused by wider use of heaters, which requires more electricity, and by less wind, which can result in an accumulation of pollutants. Wind from the west, when it does get windy, can often carry pollution, while wind from the sea in the east can be better for blowing away pollutants.

Shanghai recorded eight days with poor air quality last month, including a seriously polluted day on November 13, the second day graded with the poorest quality this year on a five-level scale.

Officials said Shanghai's air quality has actually improved in recent years, while residents may feel especially bad about the recent air quality after experiencing a long-term blue sky during the World Expo.

Local environmental protection bureau also promised to try and achieve good air quality like that during the Expo.

All city and district-based environmental protection teams have stepped up supervision at construction sites and have given guidance to them on how to lower dust levels.


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