杭州主城区O_3与前体物浓度变化特征  

Characteristics of O_3 and Precursors Concentrations in Hangzhou Urban Areas

作　　者：洪盛茂[1] 焦荔[1] 何曦[1] 孙鸿良[1] 徐鸿[1] 杨乐[1] 何纪平[1] 

机构地区：[1]杭州市环境监测中心站,杭州310007

出　　处：《气候与环境研究》2009年第6期657-664,共8页Climatic and Environmental Research

基　　金：杭州市科技局重点项目20092113A05

摘　　要：利用2004～2006年杭州主城区环境空气监测资料,研究了O_3、NO_2和CO浓度的分布特征和时间变化规律,结果表明,杭州主城区3年的O_3、NO_2、CO的年均浓度都不大,分别为40、60、1400μg·m^(-3)。四季中O_3、NO_2和CO浓度相差较大,O_3是夏季高冬季低,NO_2和CO则是秋季较高,夏季较低。O_3、NO_2和CO浓度日变化也很明显,其中O_3是单峰形态,NO_2和CO为双峰形态。不同天气条件下O_3与烃类的关系研究表明,晴天时烃类浓度减少,O_3浓度明显增加;阴天时O_3浓度较低,烃类浓度较高,它们的变化不大。白天和夜晚不同风速时O_3、C_2-C_(12)的浓度变化不同,白天风速增大时C_2-C_(12)浓度减小,O_3浓度增加;晚上无此变化。Based on the air monitoring data in Hangzhou urban areas from 2004 to 2006,the concentrations of O_3, NO_2,CO,and their temporal variation characteristics were analyzed.The results showed that all the annual mean concentrations of O_3,NO_2,and CO were low in the three years,which were 40,60,and 1400μg·m^(-3),respectively. The concentrations of O_3,NO_2,and CO were different among seasons,O_3 concentration was the highest in summer and the lowest in winter,while both NO_2 and CO concentrations were higher in...

关 键 词：前体物 C_2-C_(12)天气条件 

分 类 号：X515[环境科学与工程—环境工程]