两广地区硝酸和硝酸盐湿去除研究  

Sutdy on Precipitation Scavenging of Nitric Acid and Nitrate over Guangdong and Guangxi Areas

作　　者：王美蓉[1] 孙庆瑞[1] 唐孝炎[1] 齐立文[2] 

机构地区：[1]北京大学技术物理系 [2]中国环境科学研究院

出　　处：《环境科学研究》1989年第4期24-29,共6页Research of Environmental Sciences

摘　　要：1986至1988年在我国两广地区进行了三年的春季降水集中观测,根据所测得的大气硝酸、硝酸盐气溶胶和雨水硝酸盐浓度,计算了硝酸和硝酸盐的清除比,其平均值分别为1.7×10~6和5.6×10~5。利用连续降雨样品的硝酸盐沉降量计算了硝酸盐的清除系数λ,λ值约在10^(-4)-10^(-5)S^(-1)之间。Since 1986, the samples of acidic precipitation have been collected over Guangdong and Guangxi areas.The data including concentrations of nitrate in precipitation and concentrations of nitrate and nitric acid in air were analyzed.The scavenging ratios of nitrate and nitric acid were calculated.The average scavenging ratios of nitrate and nitric acid are 5.6×105 and 1.7×106 respectively .we calculated the scavenging coefficient of nitrate using deposition of nitrate in s-uccessivc hours of precipitation sample.The values of scavenging coefficient are in the range of 10-4 s-1 to 10-5 s-1.

关 键 词：湿去除 硝酸 硝酸盐 降水 

分 类 号：X51[环境科学与工程—环境工程]