大气中有机胺类物质反应机理和消除过程研究

综述大气中有机胺可能的来源、健康危害及其在大气中的均相和非均相化学转化机制,阐述有机胺的反应产物对二次有机气溶胶及其对大气气溶胶的物理和化学性质的改变,此类改变增强大气气溶胶间接气候效应(如成云结核能力等)。大气中的有机胺主要通过与大气氧化剂的反应和非均相反应过程的溶解或置换进入颗粒相,而后随着湿沉降(如云滴、雾滴、雨滴等)到达地面或海面。

A Review of Reaction Mechanism and Eliminate Process of Atmospheric Amines

The possible sources,health hazards,homogeneous and heterogeneous chemical conversion mechanism of amines in the atmosphere were reviewed. The changes of reaction product to secondary organic aerosols (SOAs) as well as to the physical and chemical properties of aerosols which enhance the indirect climate effect of aerosol (such as CCN,etc.) were elaborated.Amines in the atmosphere convert to particle phase mainly by dissolution or replacement in the reaction with atmospheric oxidants and heterogeneous reaction process,then reaching ground or sea by wet sedimentation (like drops,cloud droplets,rain,etc.).