<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区
          US EUROPE AFRICA ASIA 中文
          China / Society

          Only 3 major Chinese cities met air quality standard

          (Xinhua) Updated: 2014-03-08 21:58

          Only 3 major Chinese cities met air quality standard

          BEIJING - Only three of the 74 major Chinese cities subject to air quality monitoring met the national standard for fine air in 2013, an environmental protection official said on Saturday.

          Haikou, capital of southernmost Hainan province, Zhoushan, an island city of East China's Zhejiang province, and Lhasa, capital of Tibet autonomous region, met the national standard for fine air last year with an average AQI (Air Quality Index) value under 100, said Wu Xiaoqing, vice minister of environmental protection.

          Under China's air quality assessment system, an AQI value within 50 represents excellent air quality and an AQI value between 50 and 100 represents fine air quality. An AQI value over 100 is unhealthy and an AQI value over 300 is considered hazardous.

          Seven cities in North China's Hebei province, Jinan of East China's Shandong province, Xi'an of Northwest China's Shaanxi province and Zhengzhou of Central China's Henan province were the 10 cities with the worst air quality in 2013, said Wu on the sidelines of the ongoing annual session of the National People's Congress, China's top legislature.

          China began to include PM2.5, a key indicator of air pollution, and ozone in its new air quality standard in 2013.

          North China's Beijing-Tianjin-Hebei region, East China's Yangtze Delta region and South China's Pearl River Delta region, were the country's biggest offenders in emissions, discharging 30 percent of China's major pollutant emissions, said Wu.

          These areas account for only 8 percent of China's territory but consumed 43 percent of its coal and produced 55 percent of the country's steel, 40 percent of cement and 52 percent of its petrol and diesel, according to the vice minister.

          Smog that lingered for seven days in late February hit 15 provinces and municipalities, accounting for 18.9 percent of China's territory, said Wu.

          Emissions from coal consumption, industrial production, vehicles and dust from construction sites and roads contributed to the smog, he added.

          Only 3 major Chinese cities met air quality standard Only 3 major Chinese cities met air quality standard
           Top 10 cities with worst smog in China Mills in N China face closure amid smog

          Highlights
          Hot Topics
          ...
          主站蜘蛛池模板: 2021国产精品自产拍在线| 国产精品∧v在线观看| 国产福利97精品一区二区| 欧美videosdesexo肥婆| 亚洲国产精品综合久久20| 在线观看精品日本一区二| 欧美肥老太交视频免费 | 日本一区二区三区四区黄色| 亚洲国产精品第一区二区| 国产尤物精品自在拍视频首页 | 少妇无套内射中出视频| 日产无人区一线二码三码2021| 亚洲 一区二区 在线| 亚洲国产精品久久久久秋霞| 中文在线√天堂| 综合色区亚洲熟女妇p| 四虎影视在线永久免费观看| 亚洲成av人片乱码色午夜| 国产麻豆精品一区一区三区| 国产福利在线观看免费第一福利| 亚洲人成网站在线播放2019| 天堂国产+人+综合+亚洲欧美| 中文激情一区二区三区四区| 性色在线视频精品| 久久精品国产一区二区三| 亚洲综合久久精品哦夜夜嗨| 精品91在线| 亚洲国产成人久久77| 亚洲国产日韩a在线播放 | 免费无码黄动漫在线观看| 国产果冻豆传媒麻婆精东 | 国产成人8X人网站视频| 日日碰狠狠添天天爽超碰97| 国产香蕉在线视频| 成人免费A级毛片无码网站入口| 中文字幕日韩国产精品| 久久99九九精品久久久久蜜桃| 日本一区二区中文字幕在线| 亚洲国产欧美在线人成大黄瓜| 九九热在线精品视频99| 妖精视频yjsp毛片永久|