摘要
在对重庆市南岸区近十年的降水监测数据进行综合分析的基础上,研究了南岸区酸雨污染特征和变化趋势,分析了酸雨的成因.结果表明,降水对空气污染物有清除作用,但酸雨的形成与空气污染物浓度无直接关联,而是取决于降水量、气温、风速、相对湿度等气象因子.大量二氧化硫和氮氧化物的排放、不利于污染物扩散的山城地貌以及潮湿闷热的气象条件是导致南岸乃至重庆酸雨污染的根本原因.
Based on the comprehensive analysis of precipitation data in Nan’an District in the past 10 years,this study deals with the pollution characteristics and the changing tendency of acid rain in this area.The result shows that contaminants can be eliminated by precipitation,and the formation of acid rain does not have direct relationship with the concentration of air contaminants,but the amount of precipitation,air temperature,wind speed,relative humidity and so on.Meantime,this study has concluded that the fundamental causes for acid rain in Nan’an District and Chongqing are the massive emission of sulfur dioxide and nitrogen oxide,the bad diffusion condition for air contaminants caused by the physiognomy of mountain city and the steamy weather condition.
出处
《西南师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2012年第7期135-141,共7页
Journal of Southwest China Normal University(Natural Science Edition)
关键词
酸雨
气象条件
降水PH值
污染现状
acid rain
weather condition
pH value of rainfall
pollution status