河南省大气环境气象成因初探

Preliminary study on the meteorological causes of atmospheric environment in Henan Province

为了更好地分析大气环境的气象条件,根据河南省环境空气自动监测数据和地面气象站资料,研究了大气污染物的变化特征以及气象条件对大气污染的影响,分析了2021年河南省大气环境气象条件特征。结果表明:2021年河南省大气环境同比改善,2021年全省平均雾日数23.3d,平均霾日数45.8d,大气污染气象条件同比偏好,2021年平均风速偏大0.33m/s,小风日数偏少31d,大气水平扩散能力同比偏好。大自然自净能力的时间和空间差异与风速密切相关。

In order to better analyze the meteorological conditions of the atmospheric environment,based on the automatic monitoring data of environmental air and ground meteorological station information in Henan Province,this study researched the characteristics of variations of atmospheric pollutants and the impact of meteorological conditions on atmospheric pollution.Specifically,this paper analyzed the meteorological characteristics of the atmospheric environment in Henan Province in 2021.The results showed that the atmospheric environment in Henan Province had improved compared with the previous year,with an average of 23.3 foggy days and 45.8 hazy days in 2021.The meteorological conditions for atmospheric pollution were also more favorable in 2021,with an average wind speed that was faster by 0.33m/s and fewer days with light winds by 31d.Moreover,the horizontal diffusion capacity of the atmosphere was relatively better than in the previous year.Time and spatial differences of natural self-purification are closely related with wind speed.