Characterization of individual particles in the Phoenix urban aerosol using electron-beam instruments

J. E. Post, P R Buseck

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

More than 8000 individual particles from the Phoenix aerosol were analyzed by using an analytical scanning electron microscope. The compositions of the aerosol were similar at the three sampling locations. Approximately 75% of the coarse particle fraction (>1 μm) is crustal material, i.e., clays, quartz, feldspars, calcite, etc. The remaining coarse particles consist mainly of biological material, S compounds, Pb salts from automobiles, and other anthropogenic particles. S-bearing particles comprise an estimated 60-80% of the submicron aerosol fraction. Presumably, the most abundant S species is (NH4)2SO4; however, many of the S-bearing particles contain various amounts of other elements such as Zn, Pb, Cu, Na, Ca, As, and K. The remainder of the submicron fraction is composed largely of automobile Pb halides and particles from a variety of anthropogenic sources. Some of the anthropogenic particles have been pinpointed to specific sources, but in most cases to date only possible sources are suggested.

Original languageEnglish (US)
Pages (from-to)35-42
Number of pages8
JournalEnvironmental Science and Technology
Volume18
Issue number1
StatePublished - Jan 1984

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Bearings (structural)
Aerosols
Particles (particulate matter)
Electron beams
aerosol
electron
Automobiles
Quartz
Calcium Carbonate
Calcite
Biological materials
Clay
Electron microscopes
Salts
Sampling
Scanning
automobile
Chemical analysis
particle
halide

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Environmental Engineering
  • Earth and Planetary Sciences(all)

Cite this

Characterization of individual particles in the Phoenix urban aerosol using electron-beam instruments. / Post, J. E.; Buseck, P R.

In: Environmental Science and Technology, Vol. 18, No. 1, 01.1984, p. 35-42.

Research output: Contribution to journalArticle

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