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北京城区达6级严重污染 雾霾消散时间图出炉(图)

2016-10-15 05:50:25   新京报

10月14日,华贸桥公交站,一位乘客戴着口罩候车。当天北京空气质量达到重度污染水平。新京报记者薛珺摄

10月14日,北京地区发布霾黄色预警、空气重污染蓝色预警、大雾黄色预警仨预警共存状态,空气相对湿度已接近饱和,全市大范围能见度在1公里左右,局地不足500米,出行务必注意交通安全及健康防护。北京城区被雾霾笼罩能见度低,不少市民佩戴口罩出行。中新网记者金硕摄

连续几天,北京雾霾已是黄色预警,10月14日依然不见好转。而这几日,“中国军方介入治霾”成为一个热点新闻。

新闻缘起是:解放军防化学院院长呼小平少将在中国国际展览中心,发布了“全国空气质量高分辨率预报和污染控制决策支持系统(NARS,简称呐思系统)”。这个系统在对“阅兵蓝”进行实例模拟后得出结果,北京举办大型活动,北京及周边省市排放企业并非都要停工、停产,只需要控制相关区域不多的可控排放源,就可以得到与“阅兵蓝”同样的效果,大幅降低控制代价。呼小平说,呐思系统是探索军民融合发展路子的有效尝试,它的精准治霾技术方法体系,是在防化学院核生化危害预测与控制理论、方法和技术基础之上开展的,因此提出“军民融合、精准治霾”。

分析认为,在很多治理办法都不见大成效的情况下,这或许为我国治霾提供了一个新的思路。

随后,科技日报记者采访了这一系统研发团队领军人物黄顺祥研究员。据他介绍,呐思系统团队由解放军防化学院牵头,中国科学院大气物理研究所、北京大学、国家气象中心和北京一家科技公司等单位联合组建。

近年来,防化学院在新理论和新技术的创新性研究中取得了突破性成就,特别是在核安全、化学安全和生物安全领域,很多研究均代表了中国最高技术水平。“呐思系统的核心技术,来源于核生化危害预测与控制技术。”黄顺祥说,“大气污染控制与核生化危害控制在理论上是相通的。”当治霾成为中国公众关注的焦点后,长期研究核生化的黄顺祥发现,其实核生化的一系列预测和控制通用技术,可以用来突破雾霾防控的难点。

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