机动车排放对亚运期间杭州市大气温室气体的影响  

Influence of vehicle emissions on atmospheric greenhouse gases in Hangzhou during the Asian Games

作　　者：魏康轩 陈亮 臧昆鹏 潘凤梅 徐飞 徐宏辉[4] 方双喜 WEI Kangxuan;CHEN Liang;ZANG Kunpeng;PAN Fengmei;XU Fei;XU Honghui;FANG Shuangxi(College of Environment Sciences,Zhejiang University of Technology,Hangzhou 310014;Zhejiang Carbon Neutral Innovation Institute&Zhejiang International Cooperation Base for Science and Technology on Carbon Emission Reduction and Monitoring,Zhejiang University of Technology,Hangzhou 310014;Zhejiang Atmospheric Detection Technology Support Center,Hangzhou 310000;Zhejiang Meteorological Science Institute,Hangzhou 310008)

机构地区：[1]浙江工业大学环境学院,杭州310014 [2]浙江工业大学浙江碳中和创新研究院,浙江省碳减排与碳监测技术国际科技合作基地,杭州310014 [3]浙江省大气探测技术保障中心,杭州310000 [4]浙江省气象科学研究所,杭州310008

出　　处：《环境科学学报》2025年第3期57-66,共10页Acta Scientiae Circumstantiae

基　　金：浙江省自然科学基金联合重点基金项目(No.LZJMZ24D050011,LZJMZ23D050002);国家自然科学基金面上项目(No.42275113);海南省南海气象防灾减灾重点实验室开放基金项目(No.SCSF202306)。

摘　　要：燃油机动车是城市温室气体的重要人为源之一.第19届亚运会期间,杭州市实施临时交通管制政策,为研究大型体育赛事背景下燃油机动车对城市大气温室气体的贡献提供了条件.本研究基于亚运前、中和后期间杭州市限行区域11次道路离散采样观测的大气CO_(2)、CO、CH_(4)、SF_(6)和N_(2)O混合比数据,结合气象资料开展分析.结果表明:城市隧道对温室气体的累积效应随隧道长度增长呈指数增涨;限行政策使杭州市亚运期间机动车的CO_(2)排放量下降了至少10%,显示道路交通是杭州市温室气体的重要人为排放源之一;同时,来自江苏、上海等经济发达地区气团输送,是杭州市大气CH_(4)和SF_(6)的重要潜在来源.Fuel-fired motor vehicles are one of the important anthropogenic sources of urban greenhouse gases.During the 19th Asian Games,Hangzhou implemented a temporary traffic control policy,which provided conditions for studying the contribution of fuel-powered vehicles to urban atmospheric greenhouse gases during the period of big sport events.Based on the mixed ratio data of atmospheric CO_(2),CO,CH_(4),SF_(6)and N_(2)O,which were observed from 11 times of road discrete sampling in the restricted area of Hangzhou before,during and after the Asian Games,combined with meteorological data,we found the cumulative effect of urban tunnels on greenhouse gases increased exponentially with the tunnel length.The restriction of motor vehicles reduced CO_(2)emissions by at least 10%during the Asian Games,indicated that traffic was one of the most important anthropogenic sources of greenhouse gases in Hangzhou.At the same time,influenced by air mass transportation from economically developed areas such as Jiangsu and Shanghai,the mixing ratio of CH_(4)and SF_(6)in Hangzhou has obviously increased.

关 键 词：亚运会 机动车 城市温室气体 隧道 气团输送 

分 类 号：X51[环境科学与工程—环境工程]