山东农业大学学报(自然科学版)Issue(1):23-27,5.DOI:10.3969/j.issn.1000-2324.2015.01.005
济南市近年酸雨特征及其影响因素
Characteristics and Effective Factors of Acid Rain in Jinan for Recent Years
杨何著1
作者信息
- 1. 南京大学大气科学学院中尺度灾害性天气教育部重点实验室,江苏 南京 210093; 山东省气象局,山东 济南 250031
- 折叠
摘要
Abstract
The annual and seasonal characteristics of acid rain in Jinan, and the relationship between acid rain, meteorological factors and pollutant concentrations were analyzed based on the observed acid rain data, the sounding data and atmospheric monitoring data from 2008 to 2012 at Acid Rain Observation Station of Jinan. The statistics showed a decreased tendency for both the frequency and intensity of acid rain in Jinan in recent 5 years. The average pH value of precipitation was lowest in autumn and highest in summer, while the frequency of acid rain was highest in autumn and lowest in winter. It was found that PM10 and SO2 were the main atmospheric pollutants contributing to acid rain in Jinan. The transport of pollutants by easterlies enhanced the acidity of precipitation. The acid rain was also influenced by the temperature inversion. The frequency of acid rain increased when temperature inversion occurred at rainy days and the days before. The pH value decreased with the increase of rainfall in a single event. The acid rain was most likely to form when moderate rain occurs. Additionally, fog (light fog) also favored the formation of acid rain.关键词
酸雨/pH值/酸雨频率/影响因素Key words
Acid Rain/pH value/frequency of acid rain/effective factors分类
资源环境引用本文复制引用
杨何著..济南市近年酸雨特征及其影响因素[J].山东农业大学学报(自然科学版),2015,(1):23-27,5.