摘要
于2020年12月1日~2021年12月1日分别在深圳市大学城和路边站两点位对大气CO_(2)和CO浓度进行了为期1a的观测.本次观测期间内两点位大气CO_(2)平均浓度分别为432×10^(-6)和439×10^(-6),均呈现了“秋冬季高、春夏季低”的季节变化特征与“昼低夜高”日变化特征,且日变化特征在早晚高峰期受到交通源排放的显著影响.此外,通过引入CO_(2)和CO的净变化值得到大学城和路边站两点位的ΔCO_(2)/ΔCO值分别为136.8~184.8、59.0~119.3,结果表明机动车排放对深圳市大气CO_(2)贡献突出.
This study was monitored CO_(2) and CO concentrations for one year at two sites(Roadside Station and University Town)in Shenzhen from December 1,2020 to December 1,2021.During the observation period,the average atmospheric CO_(2) concentrations of the University Town and Roadside Station in the Shenzhen were 432×10^(-6) and 438×10^(-6),respectively.The atmospheric CO_(2) concentration at both sites showed the seasonal variation characteristics of high in autumn and winter and low in spring and summer,and diurnal variation characteristics of low in day and high in night.In addition,introducing the net change values of CO_(2) and CO(ΔCO_(2) andΔCO),theΔCO_(2)/ΔCO values at the University Town and Roadside Station in the Shenzhen ranged from 136.8 to 184.8 and 59.0 to 119.3,respectively,indicating that vehicle emissions contributed significantly to atmospheric CO_(2) in Shenzhen.
作者
孙天乐
何冬一
林晓玉
唐梦雪
曹礼明
计军平
古添发
何凌燕
SUN Tian-le;HE Dong-yi;LIN Xiao-yu;TANG Meng-xue;CAO Li-ming;JI Jun-ping;GU Tian-fa;HE Ling-yan(Shenzhen Environmental Monitoring Center of Guangdong Province,Shenzhen 518049,China;Laboratory of Atmospheric Observation Supersite,School of Environment and Energy,Peking University Shenzhen Graduate School,Shenzhen 518055,China;School of Economics and Management,Harbin Institute of Technology,Shenzhen,Shenzhen 518055,China)
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2022年第12期5497-5505,共9页
China Environmental Science
基金
国家重点研发计划(2022YFC3701000,第二课题)
深圳市科技计划项目(JCYJ20200109110625819)。
关键词
深圳
CO_(2)浓度
季节变化
日变化
来源分析
Shenzhen
CO_(2)concentration
seasonal variation
diurnal variation
source analysis
