国产热热热精品,亚洲视频久久】日韩,三级婷婷在线久久,99人妻精品视频,精品九热人人肉肉在线,AV东京热一区二区,91po在线视频观看,久久激情宗合,青青草黄色手机视频

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

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
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
宁陵县| 德清县| 冷水江市| 澄江县| 红河县| 潢川县| 顺昌县| 浑源县| 尼玛县| 罗田县| 土默特左旗| 武宣县| 建宁县| 屏东县| 新乡市| 邯郸县| 光山县| 多伦县| 石渠县| 梅河口市| 博野县| 年辖:市辖区| 江津市| 邢台市| 定陶县| 延川县| 新巴尔虎左旗| 伽师县| 新建县| 兴安县| 黄大仙区| 木兰县| 怀集县| 堆龙德庆县| 通河县| 安福县| 岳池县| 浪卡子县| 东宁县| 阜阳市| 禹州市|