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北京陷入冬后最重雾霾 污染度为世卫组织上限20倍
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Topic: 北京陷入冬后最重雾霾 污染度为世卫组织上限20倍 (Read 606 times)
msc_de
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北京陷入冬后最重雾霾 污染度为世卫组织上限20倍
November 29, 2015, 10:08:43 AM
#1
北京陷入冬后最重雾霾 污染度为世卫组织上限20倍
北京周六迎来了这个冬天最严重的一次雾霾。据美国政府掌握的测量结果,北京周六的空气污染程度将近为世界卫生组织所设最高上限的20倍。
包括"凤凰网"在内的中国媒体报道称,北京本周六(11月28日)的空气质量"暴跌",市气象台已经发布霾黄色预警,空气质量从优良转为5级重度污染,情况将持续。
环境保护部环境监测司司长罗毅向中新社表示,空气重污染期间,建议儿童、老年人和患有心脑血管、呼吸道疾病等易感人群留在室内,停止户外运动;一般人群减少户外运动和室外作业时间。
据美国驻北京大使馆公布的空气测量结果,北京周六中午的PM2.5指数一度达到每立方米434微克的水平。这是相关空气质量指数所能够达到的最严重定义范围,为"危险"级别。该指数依照空气质量排行分别为好(0-50微克)、一般(51-100微克)、对敏感群体不健康(101-150微克)、不健康(151-200微克)、非常不健康(201-300微克)以及危险(301-500微克)。
同时,北京市气象局官方网站上的消息则表示北京目前的空气质量为"中度霾"。空气质量"较适宜晨练",但污染气象条件"非常不利于空气污染物扩散和清除"。
据世界卫生组织的标准,空气中的PM2.5含量不应该超过每立方米25微克。这种微小粉尘对人的身体健康可以造成严重危害,因为它们可以深入肺部。一位35岁的企业咨询师向德新社表示"外面看上去像是核战中的冬天……我计划整个周末都呆在一个房间里阅读,把两台空气净化器都开到最大。"
最近几周以来,北京的空气P.M2.5污染指数经常能达到每平米200-300微克的水平。新华社28日援引环保部消息报道称,受污染排放和不利气象条件影响,京津冀及其周边地区未来数日可能出现空气重污染过程。据《新京报》报道,北京市各相关单位已按黄色预警措施要求,启动了应急减排措施,全市停止土石方、建筑拆除等施工作业。预计未来两天空气质量仍将维持重度污染状态,29日午后空气质量有望得到改善。
chennuan
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Re: 北京陷入冬后最重雾霾 污染度为世卫组织上限20倍
November 29, 2015, 03:29:29 PM
#2
早上看一个脱口秀节目,美国人嘲笑中国人开放二胎是怕一个孩子会因为雾霾走丢,无言以对
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hdd3go
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Re: 北京陷入冬后最重雾霾 污染度为世卫组织上限20倍
November 30, 2015, 07:54:19 AM
#3
北上广再好,也会被这空气质量毁了。
msc_de
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Re: 北京陷入冬后最重雾霾 污染度为世卫组织上限20倍
November 30, 2015, 11:59:06 AM
#4
评论人:剑啸江湖[太守★☆][微博][博客][个人动态]发送时间: 2015年11月30日 3:14:42
太祖在地宫长叹,又要改词了:
鸡国风光,千里雾封,万里霾飘。
望长城内外,唯余莽莽;
大河上下,顿成黑汤。
山舞乌蛇,原疑墨降,试问天公在何方?
待近时,看人人赤眼,个个面罩。
江山如此多妖,引无数贪官竞折腰。
惜气象环卫,略输策略;
城管旅游,太过风骚。
一色江山,万人枯骨,可怜换汤不换药。
俱往矣,看岁月流尽,神州喘哮。
msc_de
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Re: 北京陷入冬后最重雾霾 污染度为世卫组织上限20倍
December 01, 2015, 12:06:29 AM
#5
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