摘要
简述了PM2.5的基本概念及危害,以及人工增雨作业基本原理和各地实践;然后分析PM2.5质量浓度特征,包括PM2.5质量浓度年度特征、月度特征和典型月年度区间分布特征等三部分内容;最后,整理滨州市2014年5月10日、2014年6月20日、2015年7月18日和2018年4月22日共四次人工增雨作业的相关数据,分析PM2.5质量浓度与人工增雨量的变化情况,以及人工增雨作业前后PM2.5质量浓度变化和人工增雨降低PM2.5质量浓度持续性效果。选取适合的天气条件,进行人工增雨作业,能够有效降低PM2.5质量浓度,改善环境空气质量。
Atmospheric deposition is an important way to reduce air pollutants. This paper first outlines the basic concepts and hazards of PM 2.5 , as well as the basic principles and practices of artificial precipitation enhancement. Then it analyses the characteristics of PM 2.5 mass concentration, including the annual characteristics, monthly characteristics and typical monthly annual interval distribution characteristics of PM 2.5 mass concentration. Based on the data of four artificial precipitation enhancement operations, the changes of PM 2.5 mass concentration and artificial precipitation, the changes of PM 2.5 mass concentration before and after artificial precipitation enhancement operation and the persistent effects of artificial precipitation on reducing PM 2.5 mass concentration were analyzed. The results show that the PM 2.5 concentration can be effectively reduced and the ambient air can be improved quality by choosing suitable weather conditions and carrying out artificial precipitation enhancement operation.
作者
刘昭武
Liu Zhaowu(Binzhou Meteorological Bureau, Shandong, Binzhou 256612, China)
出处
《环境科学与管理》
CAS
2019年第8期28-31,共4页
Environmental Science and Management
