www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

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

Excessive coal use main contributor to smog, expert says

By Xinhua | China Daily | Updated: 2014-12-10 08:01

Excessive use of "unclean" energy, not vehicle emissions or the burning of straw, is the main contributor to the country's recurrent smog, a China Youth Daily report quoted an expert as saying on Monday.

Speaking at a symposium organized by the China Association for Science and Technology, Zhang Xiaoye, director of an atmospheric composition committee under the China Meteorological Society, said that though straw burning, fireworks and vehicle emissions contribute to air pollution, "excessive use of 'unclean' energy is the real culprit".

According to the report, Zhang used the term "unclean" energy to refer mainly to coal.

"Coal and other unclean energy sources are the number one contributor to China's smog," he said, adding that vehicle emissions may come second, especially in big cities.

Citing PM2.5 readings recorded in early November, when Beijing hosted the Asia-Pacific Economic Cooperation meeting, Zhang said the figures showed a considerable drop of 35 percent.

He said only 10 percent of the pollution reduction came from the odd-and-even license plate vehicle restrictions, which reduced daily traffic by up to 11.7 million cars, whereas the rest was the result of cuts in coal burning in Beijing's neighboring regions starting from Nov 6.

Many parts of China have been regularly plagued by choking smog since 2013. The situation in North China is particularly serious.

To ensure good air quality for APEC, nearly 4,000 factories in Hebei were ordered to close or curb production during the weeklong meeting.

As a result, the Beijing sky remained blue during APEC despite predictions otherwise, with the daily PM2.5 density in the period falling to 43 micrograms per cubic meter, prompting Chinese netizens to coin the phrase "APEC Blue" to describe the clear sky.

Since the lifting of the bans, Beijing has reported several spells of mild to serious air pollution, with PM2.5 density reaching 224 micrograms per cubic meter in Beijing on Tuesday.

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
主站蜘蛛池模板: 欧美精品日本一级特黄 | www.99在线| 欧美日韩亚洲高清不卡一区二区三区 | 欧美老妇免费做爰视频 | 男人免费看片 | 最近韩国日本免费免费版 | 在线观看视频国产 | 女人aaaaa片一级一毛片 | 手机在线日韩高清理论片 | 久久精品国产午夜伦班片 | 色噜噜国产精品视频一区二区 | 久久亚洲一级α片 | 热er99久久6国产精品免费 | 免费一级特黄 欧美大片 | 国产无毛 | 国产亚洲精品激情一区二区三区 | 91在线免费公开视频 | 国内偷拍免费视频 | 亚洲gogo人体大胆西西安徽 | xoxoxoxo欧美性护士 | 大片国产片日本观看免费视频 | 欧美成人高清手机在线视频 | 久久99精品九九九久久婷婷 | 久久久久久久国产精品影院 | 26uuu影院亚洲欧美综合 | 深爱五月开心网亚洲综合 | 亚洲综合视频网 | 那里有黄色网址 | 老湿菠萝蜜在线看 | 亚洲成人一区二区 | 日本三级香港三级网站 | 亚洲国产福利精品一区二区 | 国产一在线 | 91亚洲精品在看在线观看高清 | 性配久久久 | 亚洲欧美日韩视频一区 | 中国老太性色xxxxxhd | 日本无玛 | 欧美日韩一区二区在线视频 | 亚洲欧洲国产成人精品 | 三级全黄的全黄三级三级播放 |