Record Display for the EPA National Library Catalog

RECORD NUMBER: 2 OF 3

OLS Field Name OLS Field Data
Main Title Electron microprobe X-ray analysis of atmospheric aerosol particles, period covered December 1, 1968 to August 31, 1969.
CORP Author Advanced Metals Research Corporation.
Publisher [dist. by] Clearinghouse for Federal Scientific & Technical Information, Springfield, Va.,
Year Published 1969
Report Number PHS-CPA-22-69-26
Stock Number PB-189283
OCLC Number 19027550
Subjects Aerosols. ; Electron microscopes.
Additional Subjects ( Air pollution ; X-ray spectroscopy) ; ( Aerosols ; X-ray spectroscopy) ; Passenger vehicles ; Exhaust gases ; Particle size ; Waste gases ; Electron microscopy ; Smog ; Automobile exhaust ; Electron probes ; Electron microprobe analysis
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBM  TD883.1.A32 Headquarters Library/Washington,DC 09/18/2012
ESAM  TD883.1.A32 Region 10 Library/Seattle,WA 06/29/1991
NTIS  PB-189 283 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 77 p. : ill., charts ; 28 cm.
Abstract
Electron microprobe analysis was applied to the chemical identification of the airborne particles characteristic of air pollution contaminants. A conventional AMR Electron Microprobe and a Philips EM200 Electron Microscope equipped with an AMR X-ray Spectrometer attachment were employed to investigate size-fractioned samples of laboratory generated aerosol particles of NaCl and Zn(NH4)2(SO4)2, as well as specific pollution sources, e.g. Los Angeles smog and auto exhaust. The effect of instrument variables, including electron beam size, acceleration potential, and beam current was determined for particles ranging in size from 3 microns to 0.5 microns. X-ray Spectral Patterns obtained from Los Angeles smog particles are presented and inherent limitations in the analytical technique are also discussed. Scanning electron microscopy was employed as a supplement to conventional electron microscopy and was found to furnish valuable information on the nature of the particulates. (Author)
Notes
"PB 189 283". "Contract No. CPA 22-69-26"
Contents Notes
Electron microprobe analysis was applied to the chemical identification of the airborne particles characteristic of air pollution contaminants. A conventional AMR Electron Microprobe and a Philips EM200 Electron Microscope equipped with an AMR X-ray Spectrometer attachment were employed to investigate size-fractioned samples of laboratory generated aerosol particles of Na Cl and Zn (NHb4s)b2s (SOb4s)b2s, as well as specific pollution sources, e.g. Los Angeles Smog and Auto Exhaust. The effect of instrument variables, including electron beam size, acceleration potential, and beam current was determined for particles ranging in size from 3mu to 0.5mu.