大气中挥发性有机物源解析技术研究  

Study on Source Apportionment ofVolatile Organic Compounds in Atmosphere

作　　者：付洁 胡造时 韦江慧 洪欣 FU Jie;HU Zao-shi;WEI Jiang-hui;HONG Xin(Guangxi Environmental Monitoring Centre,Nanning Guangxi 530028,China)

机构地区：[1]广西壮族自治区生态环境监测中心,广西南宁530028

出　　处：《当代化工》2023年第11期2726-2731,共6页Contemporary Chemical Industry

基　　金：广西重点研发计划,基于多技术融合的广西大气臭氧污染特征及改善路径研究应用(项目编号:No.桂科AB20238015)。

摘　　要：大气中挥发性有机物对光化学反应具有重要影响,加强大气中挥发性有机物源解析技术研究是蓝天保卫战的重要前提。归纳了国内外在大气挥发性有机物研究中常用的源解析方法。重点总结了特征比值法、变异性分析、相关性分析、正矩阵因子分解法、化学质量平衡法、主成分分析法、潜在源贡献分析法、浓度权重轨迹分析的基本原理、优缺点及其在挥发性有机物来源解析上的应用情况。最后指出大气挥发性有机物源解析技术研究中面临的挑战和未来的方向。Volatile organic compounds(VOCS)have important impacts on tropospheric photochemistry.Strengthening the research on source apportionment in volatile organic compounds is an important precondition for winning the battle against air pollution.In this paper,the common methods of source apportionment for volatile organic compounds in the relevant research at home and abroad were reviewed.The basic principles,characteristics and applications of major source apportionment methods were summarized,such as diagnostic ratios,lifetime-variability analysis,correlation analysis,positive matrix factorization(PMF),chemical mass balance(CMB),principal component analysis(PCA),potential source contribution function(PSCF),concentration-weighted trajectory(CWT),and their advantages and disadvantages in applicationwere discussed.Finally,the key research challenges and future directions were put forward.

关 键 词：大气 挥发有机物 源解析技术 

分 类 号：X51[环境科学与工程—环境工程]