Sources and elemental composition of aerosol in Pasadena, California, by energy-dispersive X-ray fluorescence
Data on the elemental composition of particulate matter obtained with an automatic X-ray fluorescence spectrometer in Pasadena, California, are analyzed with special reference to the sources of nine elements consistently measurable with reasonable accuracy: Ca, Ti, V, Mn, Fe, Ni, Zn, Br, and Pb. It is found that gasoline-engine exhaust is the chief source of the Br and Pb. Particulate matter present in the gasoline-engine exhaust contributed 5.35 micrograms/cu m on the average to the aerosol mass. Soil is the main source of the Ca, Ti, Mn, and Fe and contributes 8.35 micrograms/cu m on the average to the aerosol mass during sampling. Vanadium, Ni, and Zn originate from at least three further sources not identified. All elements measured show strong concentration fluctuations (orders of magnitude) on a short (2 hr or less) time scale.
- Research Organization:
- Ford Motor Co., Dearborn, MI
- OSTI ID:
- 6572275
- Journal Information:
- Adv. Environ. Sci. Technol.; (United States), Journal Name: Adv. Environ. Sci. Technol.; (United States) Vol. 9; ISSN AESTC
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400103 -- Radiometric & Radiochemical Procedures-- (-1987)
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54 ENVIRONMENTAL SCIENCES
ACCURACY
AEROSOL MONITORING
AEROSOLS
AIR POLLUTION
ALKALINE EARTH METALS
BROMINE
CALCIUM
CALIFORNIA
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
COLLOIDS
DISPERSIONS
ELEMENTS
EXHAUST GASES
FEDERAL REGION IX
FLUIDS
GASEOUS WASTES
GASES
HALOGENS
IRON
LEAD
MANGANESE
METALS
MONITORING
NICKEL
NONDESTRUCTIVE ANALYSIS
NONMETALS
NORTH AMERICA
POLLUTION
SAMPLING
SOLS
TITANIUM
TRANSITION ELEMENTS
USA
VANADIUM
WASTES
X-RAY EMISSION ANALYSIS
X-RAY FLUORESCENCE ANALYSIS
ZINC