环境科学与技术
環境科學與技術
배경과학여기술
ENVIRONMENTAL SCIENCE & TECHNOLOGY
2010年
2期
131-134,149
,共5页
刘彦飞%邵龙义%王彦彪%李卫军
劉彥飛%邵龍義%王彥彪%李衛軍
류언비%소룡의%왕언표%리위군
扫描电镜%单颗粒%粒度%元素分析%源解析
掃描電鏡%單顆粒%粒度%元素分析%源解析
소묘전경%단과립%립도%원소분석%원해석
scanning electron microscope%individual particle%size distribution%elemental composition%source identifica-tion
应用场发射扫描电镜(FESEM)和带能谱的扫描电镜(SEM-EDX)对哈尔滨市春季市区大气PM_(2.5)的物理和化学特征进行研究.微观图像表明PM_(2.5)颗粒类型主要为矿物、烟尘集合体、飞灰和超细颗粒物;从各种颗粒的数量-粒度、体积-粒度分布及矿物元素分析表明,哈尔滨市大气PM_(2.5)颗粒中,矿物、烟尘集合体、飞灰是颗粒的主要成分,分别来源于扬尘、燃煤燃烧和机动车尾气排放.
應用場髮射掃描電鏡(FESEM)和帶能譜的掃描電鏡(SEM-EDX)對哈爾濱市春季市區大氣PM_(2.5)的物理和化學特徵進行研究.微觀圖像錶明PM_(2.5)顆粒類型主要為礦物、煙塵集閤體、飛灰和超細顆粒物;從各種顆粒的數量-粒度、體積-粒度分佈及礦物元素分析錶明,哈爾濱市大氣PM_(2.5)顆粒中,礦物、煙塵集閤體、飛灰是顆粒的主要成分,分彆來源于颺塵、燃煤燃燒和機動車尾氣排放.
응용장발사소묘전경(FESEM)화대능보적소묘전경(SEM-EDX)대합이빈시춘계시구대기PM_(2.5)적물리화화학특정진행연구.미관도상표명PM_(2.5)과립류형주요위광물、연진집합체、비회화초세과립물;종각충과립적수량-립도、체적-립도분포급광물원소분석표명,합이빈시대기PM_(2.5)과립중,광물、연진집합체、비회시과립적주요성분,분별래원우양진、연매연소화궤동차미기배방.
A field emission scanning electron microscope (FE-SEM) and energy dispersive X-ray spectroscopy (SEM-EDX) were used to examine the inhalable particulates pollution in Harbin during spring season with respect to PM_(2.5) physi-co-chemical properties of and the source identification. It has been revealed from the image analysis that the city's pani-cles mainly consist of mineral particles, soot aggregates, fly ash and ultra-free particulates, which can be traced to the fly-ing dust hom construction sites, coal combustion and auto exhaust.
