Title Transcription
タイキチュウ ノ チリ ノ ソウサガタ デンシ ケンビキョウ ニヨル ケイタイ カンサツ
Title Alternative
Scanning electron microscopic observation of aerosol dusts
File
language
jpn
Author
Watanabe, Hiroaki
Kosaka, Yuko
Mabuchi, Emi
Zhuo, Guoping
Noda, Shuji
Tazaki, Kazue
Description
Aerosol dusts observed in August, September and November 1991 over Matsue, Shimane, were collected by air-sampler. The dust samples were examined by using X-ray powder diffraction (XRD) and scanning electron microscopy-Energy dispersive X-ray analysis (SEM-EDX). XRD data show that aerosol dusts are mainly composed of amorphous materials with sulfur, sulfate (barite, gypsum, etc.) and halite, SEM observation revealed that the amorphous materials were derived from pollen of Altemisia, Bougainvillea Spectabilis, Sciadopitys Verticillata, Crypomeria Japonica, scales, carbonaceous soot aggregates and volcanic glass. SEM with EDX showed that cubic barite and platy gypsum were agregated with volcanic glass contain high concentration of S, Ca or Ba. The most likely source of these aerosol dusts come from volcanic ash, such as Sakurajima or Unzen in Kyushu. Various pollen in the aerosol suggest that the dust components are seasonal changed. Based on these microanalyticial observations, the circulation of aerosol system and component in atmosphere influence greatly on local environmental condition.
Journal Title
Geological reports of Shimane University
Volume
11
Start Page
25
End Page
37
ISSN
0287816X
Published Date
1992-07-30
NCID
AN00054980
Publisher
島根大学理学部地質学教室
Publisher Aalternative
Department of Geology, Faculty of Science, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Shimane University
Remark
1-11 / 1982-1992