<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

          Reports

          2.2 million young Chinese die from indoor pollution: report

          (chinadaily.com.cn)
          Updated: 2010-05-17 17:24
          Large Medium Small

          More than two million Chinese youths die each year from health problems related to indoor air pollution, with nearly half of them under five years of age, state media cited a government study as saying.

          The indoor pollution levels are often 5-10 times higher than those measured in outdoor air, according to the study released by the China Centre for Disease Control and Prevention.

          The study said dangerous indoor pollutants include formaldehyde, benzene, ammonia and radon.

          According to related data, formaldehyde which?is often found in building materials and new furniture, poses the biggest threat -?it can be slowly released into indoor environments over the following?5-15 years.

          The study told?long-term exposure to such substances can cause a range of health problems including respiratory diseases, mental impairment and cancer, with young children, foetuses in utero and the elderly at most risk.

          主站蜘蛛池模板: 亚欧美闷骚院| 国产69堂免费视频| 1区2区3区4区产品不卡码网站| 国产成人AV大片大片在线播放| 亚洲AV秘 无码一区二区三区1| 国产蜜臀在线一区二区三区| 青青青国产在线观看免费| 性色av无码无在线观看| 国产女人喷潮视频免费| 亚洲va欧美va国产综合| 久久久久久久久毛片精品| 亚洲人成在线观看网站不卡| 国产av一区二区三区区别 | 亚洲五月天一区二区三区| 日本熟妇XXXX潮喷视频| 亚洲精品乱码久久久久久按摩高清 | 好姑娘视频在线观看| 农村国产毛片一区二区三区女| 国产午夜亚洲精品不卡福利| 人人模人人爽人人喊久久 | 中文字幕久久六月色综合| 无码国产成人午夜电影在线观看| 欧美日韩一区二区三区在线视频| 国产专区精品三级免费看| 国内精品久久人妻无码妲| 亚洲精品一区二区三区大桥未久| 办公室强奷漂亮少妇视频| 亚洲精品有码在线观看| 亚洲AV无码成H人动漫无遮挡| 国产精品乱人伦一区二区| 亚洲AV国产福利精品在现观看| 久久夜色精品国产爽爽| 一级片一区二区中文字幕| 久久久久久av无码免费看大片| 好吊视频一区二区三区在线| 90后极品粉嫩小泬20p| 精品国产一区二区三区卡| 亚洲成av人无码免费观看| 开心激情站开心激情网六月婷婷| 在线亚洲午夜理论av大片| 国产欧美另类精品久久久|