基于红外掩日通量遥感监测的挥发性有机物通量反演技术及其应用研究进展

Research progress in volatile organic compounds flux retrieval based on solar occultation flux remote sensing and its application

挥发性有机物(VOCs)是导致城市二次有机气溶胶(SOA)和臭氧(O3)污染的重要前体物。工业园区是人为源VOCs的重要排放源,主要体现在以无组织形式排放的烷烃、烯烃、芳香烃等特征污染物。为有效控制工业园区的VOCs排放及评估管控与治理效果,对VOCs排放通量及分布进行监测具有决定性的意义。红外掩日通量(SOF)技术是当前场地VOCs无组织排放通量监测的最佳实用技术之一。本文详细介绍了SOF技术的原理、方法、发展历程与实际应用案例,并展望了SOF技术在我国工业园区VOCs排放通量监测的应用前景。

Volatile organic compounds(VOCs)are important precursors of urban secondary organic aerosol(SOA)and ozone(O3)pollution.Industrial parks are important sources for anthropogenic VOCs,with main fugitive emission of characteristic pollutants such as alkanes,alkenes and aromatic hydrocarbons and so on.To effectively control VOCs emission from industrial parks and evaluate the effects of control and treatment,it is necessary to monitor the flux and distribution of VOCs emission.Solar occultation flux(SOF)technique is currently one of the best available techniques for monitoring fugitive emission flux of field VOCs.The principle,method,development and applications of SOF technique are introduced in detail in this review,and the future application of SOF in monitoring VOCs emission flux from industrial parks in China is prospected as well.