男友太凶猛1v1高h,大地资源在线资源免费观看 ,人妻少妇精品视频二区,极度sm残忍bdsm变态

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

4,000 tons of pollution in Beijing air

By WANG XIAODONG | chinadaily.com.cn | Updated: 2013-02-04 17:27

A total of 4,000 tons of pollutants are estimated to be in the air in urban areas of Beijing on serious pollution days, according to a researcher with the Chinese Academy of Sciences quoted by Beijing Morning Post.

The calculation was made by Wang Yuesi, and based on the size of Beijing's urban area and concentration of pollutants, including PM2.5, or particulate matters less than 2.5 microns in diameter.

Many parts of central and eastern China witnessed more than 20 days' of hazy weather in January, according to National Meteorological Center, the worst since 1961.

Beijing and its neighboring areas were the hardest hit, with only five days free of smog weather in Beijing in January, according to the Beijing Meteorological Bureau. Concentration of PM 2.5 was as high as 1,000 micrograms in parts of Beijing on serious pollution days in January.

Related stories:

Air pollution prompts Beijing to limit fireworks

Academic claims air pollution is more frightening than SARS virus

Beijing air pollution reaches dangerous levels

Growing trend of compound sources in air pollution: report

Entrepreneur airs pollution concerns

 

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: 凤凰县| 富顺县| 井冈山市| 峨山| 巴里| 黄陵县| 武隆县| 万年县| 突泉县| 东乌珠穆沁旗| 缙云县| 轮台县| 尉氏县| 呼图壁县| 天门市| 新和县| 利津县| 静宁县| 鞍山市| 连州市| 南皮县| 西华县| 延安市| 沙田区| 兰溪市| 东源县| 三河市| 凉城县| 新巴尔虎左旗| 道孚县| 高碑店市| 繁峙县| 郯城县| 大新县| 乌鲁木齐县| 手游| 巫溪县| 惠州市| 油尖旺区| 临洮县| 深圳市|