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受烟花爆竹影响 春节期间黑龙江省多地或将出现污染天气

2023-01-18 09:06:51来源:黑龙江生态环境 阅读量:14172

导读:在天气系统转换过程中,会出现扩散条件不利的时段,春节假日期间烟花爆竹的燃放也会造成短时空气质量下降。
  2023年1月下半月,高空冷空气前期比较活跃,月末活跃程度减弱,我省北部地区整体扩散条件较好,南部地区整体扩散条件一般。在天气系统转换过程中,会出现扩散条件不利的时段,春节假日期间烟花爆竹的燃放也会造成短时空气质量下降。
 
  经预测,18日,我省西南部地区地面风力明显减弱,早间局地出现短时静稳天气,哈尔滨、绥化、大庆等地区可能出现短时中度-重度污染。南部其他地区扩散条件一般,空气质量以良-轻度污染为主,北部地区扩散条件较好,空气质量以优-良为主。
 
  19日至20日,受冷空气影响,全省大部分地区扩散条件较好,空气质量以优-良为主。哈尔滨、绥化地区空气质量以良-轻度污染为主,若18日西南部污染物累积量较大,19日早间也可能出现短时中度以上污染。
 
  21日至22日,冷空气减弱,全省扩散条件转为一般,受除夕烟花爆竹影响,我省南部地区会出现轻度至中度污染,局地可能达到重度污染;北部地区以良-轻度污染为主,局地可能出现中度污染。
 
  23日至29日,多股冷空气进入我省,全省大部分地区扩散条件较好,空气质量以优-良为主。哈尔滨、绥化地区空气质量以良-轻度污染为主。其中25日夜间至26日白天,我省西南部地区风力出现减弱,风向转偏南,哈尔滨、绥化地区可能出现短时中度及以上污染。
 
  30日至31日,全省大部分地区风力减弱,我省南部地区扩散条件转为一般,空气质量以良-轻度污染为主;北部地区扩散条件较好,空气质量以优-良为主,局地短时可能出现轻度污染。其中哈尔滨等个别地区可能出现连续轻度以上污染过程。
 
  后期形势变化较大,具体形势有待临近研判。
 
     来源:省生态环境监测中心
 
  监制/吴殿峰  责编/王欢 李明哲
 
  原标题:受烟花爆竹影响 春节期间我省多地或将出现污染天气

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