大气电场随时间变化与大气污染之间的关系研究——以杭州地区为例  

Study on Relationship between Atmospheric Electric Field Changes with Time and Atmospheric Pollution——Take Hangzhou as an example

作　　者：郑文佳 边学文 刘敏 Zheng Wenjia;Bian Xuewen;Liu Min(Zhejiang Meteorological Safety Technology Center, Hangzhou 310000, China;Hangzhou Meteorological Bureau, Hangzhou 310000, China)

机构地区：[1]浙江省气象安全技术中心,浙江杭州310000 [2]杭州市气象局,浙江杭州310000

出　　处：《环境科学与管理》2020年第9期71-75,共5页Environmental Science and Management

摘　　要：在杭州测量大气电场(EF)和空气离子,考察颗粒污染物的影响。晴天EF在春季、夏季和秋季都表现出多模态振荡的日变化。线性相关分析表明,相对湿度、温度、压力和风的局部气象条件影响大气电场,其中风向表现出最高相关系数。与东部相比,西部大气中的EF显著较高,内陆地区的空气携带更多污染的气溶胶。在污染条件下,PM2.5的浓度与大气电场呈正相关,因为随着气溶胶粒子浓度的降低,引起电场增加。总体而言,气溶胶粒子、空气离子在气象参数下对大气电场具有局部影响。The atmospheric electric field(EF)and air ions were measured in Hangzhou to investigate the impact of particulate pollutants.Sunny day EF shows diurnal variation of multi-modal oscillations in spring,summer and autumn.Linear correlation analysis shows that the local meteorological conditions of relative humidity,temperature,pressure and wind affect the atmospheric electric field,and the wind direction shows the highest correlation coefficient.Compared with the east,the EF in the western atmosphere is significantly higher,and the air in the inland area carries more polluted aerosols.Under polluted conditions,the PM2.5 concentration is positively correlated with the atmospheric electric field,because as the aerosol particle concentration decreases,the electric field increases.In general,aerosol particles and air ions have local effects on atmospheric electric fields under meteorological parameters.

关 键 词：大气电场 空气离子 城市污染 

分 类 号：X501[环境科学与工程—环境工程]