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
Opinion / Editorials

Reducing air pollution

(China Daily) Updated: 2013-01-14 07:55

When the level of airborne particles with a diameter of 2.5 microns or less, known as PM2.5, has reached more than 400 on average, and in some cases as high as 900, in as many as 33 cities in eastern and central China, and caused serious air pollution for days, there is no reason to underestimate the harm it does to people's health. Neither is there any reason for us to not reflect on what we've contributed to the smoggy days.

Despite the meteorological reasons, such as the lack of wind and a cold current, the sulphur dioxide, carbon dioxide, nitrogen dioxide and carbon monoxide we have discharged into the air have contributed greatly to the air pollution, according to experts.

That such harmful substances stay floating in the dirty air within the fifth and sixth ring roads in Beijing when there is no wind for just a day or two points to the fact that the high rises are too densely built and block the dirty air from dispersing.

The rapid increase in car ownership and the increasingly serious traffic congestion have increased the exhaust fumes in cities. The number of motor vehicles in Beijing already exceeds 5 million and will increase further.

There are not enough green areas and trees within the city proper to help soak up the fumes discharged by vehicles and industries.

Almost all cities have these problems.

In the middle of a rapid urbanization process, it is urgent for China to think about how such a process can press forward without compromising the quality of urban life with an increasingly worse living environment.

The air quality in big cities could have been better had more attention been paid to the density of the high rises, had more trees been planted in proportion to the number of residential areas, and had the number of cars been strictly controlled. These are the lessons China should learn for its further urbanization.

For those cities suffering seriously polluted air, every resident needs to have a sense of environmental awareness, since everyone is a victim. They need to reduce their use of motor vehicles. The government also needs to have measures to reduce the use of government vehicles and the pollutants emitted by industries. Other measures are also needed to reduce traffic congestion, which will greatly reduce the exhaust fumes discharged by cars.

(China Daily 01/14/2013 page8)

Most Viewed Today's Top News
...
主站蜘蛛池模板: 中国国产一级毛片视频 | 国产成人免费网站 | 亚洲资源在线观看 | 91久久国产露脸精品 | 午夜影院亚洲 | 香港aa三级久久三级 | 欧美一区二区三区不卡免费观看 | 中文字幕综合在线 | 九九爱精品 | 亚洲综合国产一区在线 | 亚洲无线一二三区2021 | 狠狠色综合久久婷婷 | 免费国产成人手机在线观看 | 国产精品线在线精品 | 天堂8中文在线最新版在线 天堂8资源8在线 | 国产女厕偷窥系列在线视频 | 黄篇网址| 呦女亚洲一区精品 | 一区国严二区亚洲三区 | 57pao强力打造手机版 | 国产区在线免费观看 | 日韩欧美在线观看视频一区二区 | 美女一级片视频 | 日本理论片免费高清影视在线观看 | 国产亚洲精品久久久久久无 | 手机黄色网址 | 欧美日韩亚洲国产 | 寡妇野外啪啪一区二区 | 男人天堂久久 | 韩国美女一级毛片 | 精品视频网 | 一个人免费观看日本www视频 | 欧美成人精品不卡视频在线观看 | 国产视频久久久久 | 深夜福利亚洲 | 成人在线网址 | 欧美日韩一级片在线观看 | 欧美xxxxx毛片 | 免费成人高清视频 | 久久久久久精 | 黄色三级在线播放 |