亚洲人成网站18禁止中文字幕,国产毛片视频在线看,韩国18禁无码免费网站,国产一级无码视频,偷拍精品视频一区二区三区,国产亚洲成年网址在线观看,国产一区av在线

 

Top 10 most polluted cities in the world

By Wang Yanfang
0 Comment(s)Print E-mail China.org.cn, October 31, 2014
Adjust font size:

According to the WHO's database containing results of outdoor air pollution monitoring from almost 1,600 cities in 91 countries, this list presents the 10 cities with the highest PM2.5 level in the world.

PM 2.5 refers to fine particles of less than 2.5 micrometres in diameter linked with increased rates of chronic bronchitis, lung cancer and heart disease, which are dangerous for human health.

The air quality in most cities that monitor their pollution levels exceeds what the World Health Organization deems as safe. Over half of the top 10 cities were in India. No Chinese cities ranked in the top 10 most polluted cities, despite their thick, gray smog.

The cities with the lowest level of pollution were located in Canada, the United States, Finland, Iceland and Sweden.


  Lucknow





PM 2.5 level: 96

Country: India





1   2   3   4   5   6   7   8   9   10   >  


Follow China.org.cn on Twitter and Facebook to join the conversation.
ChinaNews App Download
Print E-mail Bookmark and Share

Go to Forum >>0 Comment(s)

No comments.

Add your comments...

  • User Name Required
  • Your Comment
  • Enter the words you see:   
    Racist, abusive and off-topic comments may be removed by the moderator.
Send your storiesGet more from China.org.cnMobileRSSNewsletter
    1. <ul id="556nl"><kbd id="556nl"><form id="556nl"></form></kbd></ul>
      <thead id="556nl"></thead>

      1. <em id="556nl"><tt id="556nl"></tt></em>
        <ul id="556nl"><kbd id="556nl"><form id="556nl"></form></kbd></ul>

        <ul id="556nl"><small id="556nl"></small></ul>
        1. <thead id="556nl"></thead>

          亚洲人成网站18禁止中文字幕,国产毛片视频在线看,韩国18禁无码免费网站,国产一级无码视频,偷拍精品视频一区二区三区,国产亚洲成年网址在线观看,国产一区av在线 人妻无码久久影视 日韩久久久久久久久久久久 精品国产香蕉伊思人在线 无码国产手机在线a√片无灬 91在线视频无码