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北京:大雾“闷”出四级中度污染天
[ 2006-11-21 10:36 ]

11月20日,北京遭遇今冬以来最大范围的大雾天气。北京市环保监测中心发布的空气质量日报显示,这场大雾使北京市20日的空气质量降至四级(1)中度污染,这是半年多来空气质量最糟糕的一天。部分地区的能见度仅为100米,整个京城灰蒙蒙一片,高层建筑物也完全被大雾笼罩。气象部门一天两次发布大雾黄色预警,5条高速公路被迫暂时封闭。专家提醒市民减少户外活动。

 

 

People visit the Tian'anmen Square as thick fog smothers Beijing November 20, 2006. Heavy fog enveloped the capital and much of north and east China beginning Sunday night, forcing the closure of highways around the Beijing and Tianjin area, and delay of several flights at the Capital International Airport.[Xinhua]

Beijing residents have warned to stay indoors due to high pollution levels, as a blanket of heavy smog across northern China caused traffic chaos and delayed flights throughout the region.

"Under these weather conditions it is better to reduce outdoor activities especially in areas where pollutants are concentrated such as where traffic is heavy," the Beijing environmental protection bureau said on its website Monday.

"Residents should take measures to protect themselves in order not to breathe heavily polluted air."

During the 24-hour period from Sunday noon, Beijing's air quality was rated a "hazardous" four on a scale of five, the bureau said, with five representing the worst level of pollution.

Besides the regular car pollution, the bad air quality was also due to the city's 6,000 coal-fire heating furnaces and up to two million home coal burners that went into operation this month to provide the capital with heat, it said.

Meanwhile the blanket of smog caused traffic chaos as drivers were left lined up at numerous highways that were shut down due to the atmospheric conditions.

Five highways in the capital and eight in neighboring Tianjin were shut down beginning late Sunday due to the fog, which reduced visibility in some places to as low as 100 meters, Xinhua news agency reported.

During Beijing's early morning rush hour Monday, 154 accidents were reported, with some of the incidents due to heavy smog, the report said.

Fog was worse in northeastern Liaoning province and eastern Shandong province where air flights in and out of the regions were delayed since Sunday, separate reports said.

Beijing has set an ambitious annual target of realizing "blue sky days" of level two air quality or better 65 percent of the time.

As of November 14, the city had registered 213 blue sky days and needed an additional 25 more clean air days by the end of the year to reach the target, the environmental bureau said.

"We still have hopes to fulfill this year's task, it can be done but it will be a serious challenge and we must not take this lightly," it said in a report.

Beijing, a city of 15 million people, is regarded as one of the most heavily polluted in China, although authorities are trying desperately to improve the situation ahead of the 2008 Olympic Games.

(Agencies)

Vocabulary:
 

smog:被烟尘污染的雾

up to: 达到(数字)

coal-fire heating furnaces: 煤火炉

shut down: 封(路)

(英语点津陈蓓编辑)

 
 
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