摘要
对廊坊市2016年12月14~23日一次典型重污染天气的逐时空气污染与主要气象条件进行了分析。结果表明:①该重污染过程颗粒物浓度呈现“急速上升、高污染持续时间长、急速下降”特点;②地面受低压均压类天气控制,较高的相对湿度和水汽压以及<2 m/s的低风速是该重污染形成的主要气象条件;③风向对廊坊市颗粒物清除作用大小的顺序为:东北风>西-西南风>东-东南风,当受东-东南风影响时,更容易造成廊坊市PM 2.5的持续累积。
The hourly air pollution and main meteorological conditions of typical heavy pollution weather from December 14 to 23,2016 were analyzed in Langfang city.The results show that:①the concentration of particulate matter showed the characteristics of″rapid rise,long duration of high pollution and rapid decline″during the heavy pollution process;②the surface is controlled by low-pressure and equal-pressure weather,high relative humidity and water vapor pressure and low wind speed<2 m/s are the main meteorological conditions for the formation of the heavy pollution;③the order of the effect of wind direction on the removal of particles in Langfang city is:northeast wind>west southwest wind>east southeast wind.When affected by the east southeast wind,it is easier to cause continuous accumulation of PM 2.5 in Langfang city.
作者
张艳杰
Zhang Yanjie(Institute of Geographic Science,Hebei Academy of Sciences/Hebei Province Geographic Information Development and Application Engineering Technology Research Center,Shijiazhuang,Hebei 050011,China)
出处
《绿色科技》
2021年第8期47-49,109,共4页
Journal of Green Science and Technology
基金
河北省科技计划(编号:17273713D)
河北省科学院科技计划(编号:17107)
河北省气象与生态环境重点实验室开放研究基金(编号:Z201602H)。
关键词
颗粒物
污染特征
气象条件
particulate matter
pollution characteristics
meteorological conditions
