USEUROPEAFRICAASIA 中文雙語Fran?ais
    China
    Home / China / China

    Shanghai braces for second day of severe pollution

    By Zhou Wenting in Shanghai | China Daily | Updated: 2013-12-03 08:12

    Shanghai braced for a second day of severe pollution on Monday after the city's Air Quality Index hit record hazardous levels.

    The city's environmental authority issued its first orange alert - the second-highest in its four-level warning system - after the index reached 317.

    The concentration of PM2.5 - particulate matter smaller than 2.5 microns in diameter that can penetrate the lungs - stood at an average of 266 micrograms per cubic meter in the previous 24 hours, running from noon to noon.

    It was the third day of severe pollution within a month, and the Shanghai Environmental Monitoring Center predicted the Air Quality Index would remain between 285 and 305 on Tuesday.

    The index is an integrated assessment of six main air pollutants: sulfur dioxide, nitrogen dioxide, carbon monoxide, ozone, PM10 and PM2.5.

    China's meteorological departments issue an orange warning for haze when visibility is less than 2,000 meters and pollution is sustained.

    A photo taken by a Shanghai resident at The Bund on Monday morning that was widely spread on social media showed the Lujiazui financial district, across the Huangpu River, shrouded in haze, with only a vague outline of the skyscrapers visible.

    Some commuters wore face masks, and some reported having sore throats and eyes.

    "I haven't stopped coughing since yesterday, and my eyes are uncomfortable, especially when I'm in the street," said bank clerk Liu Wei, 28.

    She said the air purifier she bought in October reflected the poor air quality. "Usually the machine will show the air in the room is clean after working for 10 minutes, but it didn't show the air was clean until it worked for more than an hour on Monday morning, and the light flickered continually to show the air was substandard afterward."

    The severe pollution began on Saturday night and became continuously worse, the Shanghai Environmental Monitoring Center said.

    The city's education commission published two notices on Monday urging kindergartens and schools to cancel all outdoor activities.

    Experts said the pollution was caused by an industrial discharge in the Yangtze River Delta region that was not dispersed by cold air from the north.

    "A new wave of cold air from the north will help diffuse the pollutants," said Qian Hua, director of the research institute of atmospheric environment under the Shanghai Academy of Environmental Sciences.

    However, the city's location on the east coast means its air quality will be less desirable in winter, he said.

    "Winds from the southeast are dominant in summer, and ocean wind is clean. So when the air on the mainland is hit by air from the ocean, the air quality will improve," he said. "In winter, the wind from the north is usually dirty."

    Moreover, leaves fall from trees in the cold weather, and that weakens the plants' ability to capture dust, experts said. The pollution worsened on Monday morning because of traffic and power consumption in factories and other workplaces.

    "The dry climate also decreases the chance of dust being absorbed by moisture," Qian said.

    With the heavy pollution, face masks have become coveted merchandise. Several stores on Taobao, a major online shopping site, that sell face masks claiming to filter PM2.5 particles said business is booming.

    Shanghai braces for second day of severe pollution

    A foreign jogger frowns as she does her morning exercise on The Bund in Shanghai on Monday morning. Gao Erqiang / China Daily

    Editor's picks
    Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
    License for publishing multimedia online 0108263

    Registration Number: 130349
    FOLLOW US
    国产做无码视频在线观看浪潮| 免费a级毛片无码免费视频120软件| 日日摸日日踫夜夜爽无码| 亚洲av无码专区在线观看下载 | 亚洲av无码一区二区三区四区| AV色欲无码人妻中文字幕| 最近免费中文字幕中文高清| 亚洲av午夜国产精品无码中文字| 亚洲AV无码一区二区三区DV| 一二三四在线观看免费中文在线观看 | 久久午夜夜伦鲁鲁片免费无码影视 | 久久无码人妻一区二区三区| 国产在线精品一区二区中文| 国产久热精品无码激情| 国产精品99久久久精品无码| 中文字幕乱妇无码AV在线| 国产精品无码无需播放器| 性无码专区无码片| 久久精品亚洲AV久久久无码| 中文字幕VA一区二区三区| 亚洲AV无码一区二区一二区| 久久中文精品无码中文字幕| 国产午夜片无码区在线播放| 久久久久亚洲AV片无码下载蜜桃| 久久午夜无码鲁丝片秋霞| 日韩亚洲欧美中文高清在线| 欧美日韩中文字幕| 中文 在线 日韩 亚洲 欧美| 91嫩草国产在线无码观看| 亚洲人成无码网站| 视频一区二区中文字幕| 中文字幕高清在线| 久久人妻AV中文字幕| 97性无码区免费| 精品无码人妻夜人多侵犯18| 久久精品中文字幕无码绿巨人 | √天堂中文官网8在线| 国产乱码精品一区二区三区中文| 超清无码无卡中文字幕| 中文字幕亚洲综合精品一区| 最近中文字幕高清中文字幕无|