【摘要】 基于福建省某市大气挥发性有机物的观测数据，分析其挥发性有机物的污染特征，研究臭氧（O₃）生成潜势，采用正矩阵因子分解法（PMF）模型开展源解析。本次研究共检测出化合物115种，定量分析51种挥发性有机物，包括烷烃、烯烃以及芳香烃，其中烷烃和芳香烃含量最高，烯烃的O₃生成潜势贡献最大（45%）。PMF模型源解析结果表明，挥发性有机物主要排放源包括机动车尾气排放、溶剂使用、植物源、生物质燃烧和工业过程，分别占比55.07%、9.37%、8.09%、12.01%和15.47%。更多还原

【Abstract】 Based on the observational data of the atmospheric volatile organic compounds in a city in Fujian Province, this study analyzed the pollution characteristics of volatile organic compounds, studied the O₃ generation potential, and used the PMF model for source analysis. A total of 115 compounds were detected and 51 volatile organic compounds were quantitatively analyzed, including alkanes, alkenes and aromatic hydrocarbons, among which alkanes and aromatic hydrocarbons have the highest content. Olefins contributes the most（45%） to the O₃ formation potential. PMF model source analysis results show that the main emission sources of volatile organic compounds include vehicle exhaust emissions, solvent use, plant sources, biomass combustion and industrial processes, accounting for 55.07%, 9.37%, 8.09%, 12.01% and 15.47% respectively.更多还原