Beijingers are to be warned of "haze" in daily weather forecasts
so they can take measures to avoid air pollution.
The municipal meteorological authorities are to include haze
levels on hazy days when the humidity is under or at 80 percent
from Feb. 1.
Haze would be divided into three grades -- light, moderate and
heavy, said Guo Hu, head of the Beijing Municipal Meteorological
Station.
Light would be defined as visibility between five and 10
kilometers; moderate with visibility between two and five
kilometers; and heavy haze means visibility under two
kilometers.
Guo said haze formed when the concentration of dust, smog and
other harmful matter was high in the air during days without
wind.
Experts warn that haze contains substances harmful to the
respiratory tract and lungs. The public is recommended to stay
indoors during moderate and heavy haze days.
Beijing reported 10 haze days in December, or one-third of the
total recorded in the capital last year.
Shi Hanmin, head of Beijing Municipal Environmental Protection
Bureau, said last week that local environmental authorities would
take further steps to control air pollution and had set an
ambitious target of 245 "blue sky" days this year after beating the
2006 goal.
The authorities reported the annual target of 238 days with
fairly good air quality had been reached on Dec. 24, and recorded
three more such days before the new year.
Experts said rain in July and August led to the record number of
good air quality days.
Du Shaozhong, deputy director of the bureau, attributed the
achievement partly to intensified efforts made by environmental
protection agencies in reducing pollution from coal burning.
According to the bureau's website, the municipal government will
put air quality improvement, the public's biggest concern, on top
of its agenda this year.
Beijing launched the "Defending the Blue Sky" program in 1998,
when the city had only about 100 days of "blue sky" a year.
(Xinhua News Agency January 29, 2007)