“十五”期间重庆雾水化学特征研究  

Chemical Characteristics of Fogwater in Chongqing During the Tenth Five-Year Plan

作　　者：赵琦[1] 孟小星[1] 陈刚才[1] 廖代强[2] 刘德[2] 马力[2] 

机构地区：[1]重庆市环境科学研究院,重庆400020 [2]重庆市气象局,重庆400039

出　　处：《西南大学学报（自然科学版）》2007年第8期146-149,共4页Journal of Southwest University(Natural Science Edition)

基　　金：重庆市科委重点攻关资助项目(20006485)

摘　　要："十五"期间重庆市区雾水呈酸性,近郊区雾水呈弱酸性,远郊区基本未酸化;由市区向外,雾水的电导率逐步降低,阴离子浓度逐步降低,钙离子、铵根离子和钾离子浓度也逐步降低,但钠离子和镁离子则有所不同;重庆雾水的酸化类型以硫酸型为主,其次是盐酸型和硝酸型.雾水的碱化类型在市区和远郊区以钙—铵型为主,在近郊区以钙型为主.雾水中离子浓度比雨水高出数倍.This paper reports pollution and chemical characteristics of fogwater in Chongqing in the period of the 10th five-year plan. Fogwater was acidic in the urban area, weakly acidic in the outskirts and neutral in the suburbs. In space, fogwater conductivity, anion concentrations and NH＋ , Ca^2＋ and K＋ dropped steadily from the urban area, to the outskirts and to the suburbs. The distribution of Na^＋ and Mg^2＋ showed a different pattern. The primary type of fogwater acidification was H2 SO4, and the secondary type was HCi and HNO3. The basification types of fogwater were primarily Ca^2＋ and NH^＋ in the urban zone and suburbs, and Ca^2＋ in the outskirts. Ion concentration in the fogwater was several times higher than that in the rainwater.

关 键 词：雾水 化学特征 重庆 

分 类 号：X131.1[环境科学与工程—环境科学]