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

US EUROPE AFRICA ASIA 中文
Business / Motoring Opinion

Low-quality fuel near Beijing undermines air quality

By Zheng Xin (China Daily) Updated: 2013-01-26 03:47

As Beijing prepares to raise its car emission standards on Feb 1, neighboring areas have been using poorer quality fuel that threatens to undermine the capital's anti-pollution efforts, experts said.

Cities nationwide have been urged to adopt stricter automobile emission standards to ease the murky haze and improve air quality.

Hao Jiming, an academic at the Chinese Academy of Engineering, said that raising the quality of gasoline and diesel and emission standards is crucial to improving the air.

"The clean fuel and clean vehicles are the most efficient and economical measures to improve the country's air," Hao, also a professor at Tsinghua University's School of Environment, said at a conference on Thursday.

Beijing announced earlier that it has prepared a higher standard of fuel with a sulfur content of no more than 50 parts per million to go with the stricter emission standards.

The stricter standards adopted by Beijing are expected to reduce nitrogen monoxide emissions by 40 percent. The concentration of PM2.5, or particulate matter smaller than 2.5 micrometers in diameter, is also expected to decrease.

But in neighboring cities, gasoline has a sulfur content around 150 ppm, and diesel has a sulfur content of about 2,000 ppm.

"That poorer quality of fuel will hinder the capital's efforts to improve the air," said Yue Xin, director of the vehicle fuels and emission laboratory under the Chinese Research Academy of Environmental Sciences.

Zhao Jingwei, a Beijing lawyer specializing in environmental protection, echoed Yue's sentiments, saying that "it requires joint efforts to crack the nut".

Michael P. Walsh, chairman of the International Council for Clean Transportation, said that the capital, as well as other cities nationwide, should learn from the experiences and lessons abroad.

"Los Angeles heavily relies on private vehicles, and the geographical condition there is not beneficial for the diffusion of the pollutant, but thanks to the strictest automobile emission controls worldwide, the city still enjoys fresh air," he said.

Dense fog and smog that blanketed parts of North China for several days resulted in intense complaints from the public.

Some blamed the increasing car ownership in Beijing, which now has 5.2 million vehicles, with about 200,000 new ones being added every year.

Walsh said the continuous murky haze that enshrouded the capital would not have been as bad if cleaner fuel and vehicles had been adopted across the country.

"China has made great strides but has recently hit a major roadblock. Increasing fuel quality can greatly improve the city's air," he said.

Contact the writer at zhengxin@chinadaily.com.cn
Hot Topics

Editor's Picks
...
主站蜘蛛池模板: 亚洲综合色一区二区三区小说 | 国产精品欧美一区二区在线看 | 国产精品久久久久久久毛片 | 国产一级特黄aa级特黄裸毛片 | 二区久久国产乱子伦免费精品 | 欧美成人免费xxx大片 | 狠狠色婷婷丁香综合久久韩国 | 欧美在线成人免费国产 | 国产成人十八黄网片 | 免费视频一区二区 | 在线视频观看一区 | 欧美精品一区二区三区免费播放 | 国产精品线在线精品国语 | 欧美激情第一欧美在线 | 免费成年人在线观看视频 | 亚洲综合精品成人 | 欧美亚洲国产日韩一区二区三区 | 国产高清视频免费在线观看 | 99久久久久国产精品免费 | 亚洲精品欧美精品中文字幕 | 午夜三级国产精品理论三级 | 看日本真人一一级特黄毛片 | 国产真实女人一级毛片 | 免费看一毛一级毛片视频 | 国产a自拍 | 欧美性视频一区二区三区 | 国产黄色a三级三级三级 | 99亚洲精品| 日韩中文字幕在线亚洲一区 | 一级v片| 九九线精品视频 | 欧美怡红院在线观看 | 91久久夜色精品国产网站 | 亚洲国产精久久久久久久春色 | 中文字幕99在线精品视频免费看 | 手机在线观看亚洲国产精品 | 全国男人的天堂网 | 日韩理论在线 | 国产aⅴ一区二区三区 | 国产精品成人一区二区三区 | 久久免费国产精品一区二区 |