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
3期
12-17
,共6页
PM2.5%化学组分%二次气溶胶%受体模型%在线源解析%大气污染
PM2.5%化學組分%二次氣溶膠%受體模型%在線源解析%大氣汙染
PM2.5%화학조분%이차기용효%수체모형%재선원해석%대기오염
PM2.5%Chemical composition%Secondary aerosol%Receptor model%On-line source apportion-ment%Air pollution
基于对国内外关于 PM2．5化学组分特征、二次气溶胶生成机理、源解析模型的研究综述，引入实现 PM2．5在线源解析的2种可能方法，即气溶胶质谱＋解析算法与3类化学组分组合观测＋受体模型。重点阐述了气溶胶质谱及在线水溶性离子、EC ／OC 和金属元素仪器的应用研究现状，并分析了不同仪器测定结果的可靠性、优势及缺陷，在此基础上提出加强城市尺度的大气化学二次反应机理及关键技术参数研究、大气颗粒物化学组分连续观测应用于在线源解析的研究、基于多种信息来源和技术手段的在线源解析方法集成研究等建议。
基于對國內外關于 PM2．5化學組分特徵、二次氣溶膠生成機理、源解析模型的研究綜述，引入實現 PM2．5在線源解析的2種可能方法，即氣溶膠質譜＋解析算法與3類化學組分組閤觀測＋受體模型。重點闡述瞭氣溶膠質譜及在線水溶性離子、EC ／OC 和金屬元素儀器的應用研究現狀，併分析瞭不同儀器測定結果的可靠性、優勢及缺陷，在此基礎上提齣加彊城市呎度的大氣化學二次反應機理及關鍵技術參數研究、大氣顆粒物化學組分連續觀測應用于在線源解析的研究、基于多種信息來源和技術手段的在線源解析方法集成研究等建議。
기우대국내외관우 PM2．5화학조분특정、이차기용효생성궤리、원해석모형적연구종술，인입실현 PM2．5재선원해석적2충가능방법，즉기용효질보＋해석산법여3류화학조분조합관측＋수체모형。중점천술료기용효질보급재선수용성리자、EC ／OC 화금속원소의기적응용연구현상，병분석료불동의기측정결과적가고성、우세급결함，재차기출상제출가강성시척도적대기화학이차반응궤리급관건기술삼수연구、대기과립물화학조분련속관측응용우재선원해석적연구、기우다충신식래원화기술수단적재선원해석방법집성연구등건의。
Based on the reviews at home and abroad on the characteristic chemical composition of PM2.5 ,the mechanism of secondary aerosol formation and source apportionment model,two possible methods of on-line source apportionment of PM2.5 were presented,which are aerosol mass spectrometry coupled with analytical algo-rithm and combined observation of 3 kinds of chemical components coupled with receptor model.The remarks were focused on the latest researches and applications of aerosol mass spectrometry,on-line water-soluble ionic composition,ratio of element carbon (EC)to organic carbon (OC)and metallic element monitoring instruments. An analysis was conducted on the reliabilities,advantages and disadvantages of the results of different instru-ments,from which some suggestions were made that the studies should be strengthened on the atmospheric sec-ondary reaction mechanism and key technical parameters in urban scope,the application of continuous observation of particle′s chemical components in on-line source apportionment research and integrated on-line source appor-tionment method based on multiple information sources and techniques.
