青岛市降水酸度的相关性分析  

Correlative Analysis of Precipitation Acidity in Qingdao

作　　者：杨红红[1] 王勃[2] 慕金波[2] 甄文栋[2] 

机构地区：[1]济南市市政工程设计研究院,济南250001 [2]山东省环境保护科学研究设计院,济南250013

出　　处：《青岛大学学报（工程技术版）》2005年第2期34-38,共5页Journal of Qingdao University(Engineering & Technology Edition)

摘　　要：为了摸清青岛市酸雨形成过程,以1997～2001年青岛市降水观测数据为样本,分析了降水酸度与降水内各种离子浓度、电导率和降水量的相关性。研究表明,降水酸度与单一离子浓度无关,与离子总量不明显相关,而是诸离子综合效应的结果,其中,SO42-,NO3-,Cl-是当地降水成酸的主要来源。又以历年青岛市降水pH年均值和各种大气污染因子浓度年均值为样本,分析了降水酸度与各种大气污染因子浓度的相关性,研究表明,降水酸度与致酸气体SO2,NOx地面浓度不明显相关,与TSP、降尘显著负相关,即当地土壤偏酸性对降水酸度起加剧作用。In order to understand the forming process of the acid rain in Qingdao, taking the precipitation monitoring data from 1997-2001 in Qingdao as the samples, the correlation between the precipitation acidity, the ion concentration, conductivity, and rainfall was studied, and the results indicate that the precipitation acidity is independent of single ion concentration and ion total amount, but depends on the comprehensive effect of all ions. SO_4 2- ,NO_3-and Cl- are the main sources for pouring acid in the locality. Taking the precipitation and environmental air monitoring data over the years as the samples,the correlation between the precipitation acidity and the concentration of atmospheric pollutants was also studied, and the results indicate the precipitation acidity is independent of concentration of acidic gases SO_2 and NO_x, but has a significant negative correlation with TSP concentration and dustfall content. The weak acidity of local soil plays an aggravative role in precipitation acidity.

关 键 词：酸雨 降水酸度 相关分析 青岛 

分 类 号：X517[环境科学与工程—环境工程]