环境监测管理与技术
環境鑑測管理與技術
배경감측관리여기술
THE ADMINISTRATION AND TECHNIQUE OF ENVIRONMENTAL MONITORING
2015年
4期
18-21
,共4页
有机胺%均相反应%非均相反应%气候效应%大气
有機胺%均相反應%非均相反應%氣候效應%大氣
유궤알%균상반응%비균상반응%기후효응%대기
Amine%Homogeneous reaction%Heterogeneous reaction%Climatic effects%Atmosphere
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。
綜述大氣中有機胺可能的來源、健康危害及其在大氣中的均相和非均相化學轉化機製,闡述有機胺的反應產物對二次有機氣溶膠及其對大氣氣溶膠的物理和化學性質的改變,此類改變增彊大氣氣溶膠間接氣候效應(如成雲結覈能力等)。大氣中的有機胺主要通過與大氣氧化劑的反應和非均相反應過程的溶解或置換進入顆粒相,而後隨著濕沉降(如雲滴、霧滴、雨滴等)到達地麵或海麵。
종술대기중유궤알가능적래원、건강위해급기재대기중적균상화비균상화학전화궤제,천술유궤알적반응산물대이차유궤기용효급기대대기기용효적물리화화학성질적개변,차류개변증강대기기용효간접기후효응(여성운결핵능력등)。대기중적유궤알주요통과여대기양화제적반응화비균상반응과정적용해혹치환진입과립상,이후수착습침강(여운적、무적、우적등)도체지면혹해면。
The possible sources,health hazards,homogeneous and heterogeneous chemical conversion mech-anism 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 dis-solution or replacement in the reaction with atmospheric oxidants and heterogeneous reaction process,then reac-hing ground or sea by wet sedimentation ( like drops,cloud droplets,rain,etc.) .