Preferential concentration of certain elements in smaller aerosols emitted from aircraft engines

Journal Article · Wed Oct 01 00:00:00 EDT 1975 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.321400· OSTI ID:7367558

Jolly, R K ^[1]; Gupta, S K; Randers-Pehrson, G; Buckle, D C; Thornton, W B; Aceto, H Jr; Singh, J J; Woods, D C

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1. Coll. of William and Mary, Newport News, VA

Aerosols from aircraft engines were collected with an Andersen eight-stage cascade sampler for a period of 24 h. The aerosol samples from each stage were analyzed for their elemental composition using the proton-induced x-ray (PIXE) technique. Seventeen elements (Si, P, S, Cl, K, Ca, Ti, V, Fe, Ni, Cu, Zn, Br, Sr, Nb, Sn, and Pb) were positively identified and quantitated at each stage. Six elements (S, Ca, Fe, Zn, Sn, and Pb) showed fractional concentration increase with the decreasing aerosol size. Similar, but less well-defined, trends were also observed for V and Ni. Silicon and chlorine, on the other hand, showed an opposite trend. Neutron activation analysis of bulk aerosol samples collected every 2 h over the same period showed correlation of concentration of Si, Ca, V, Ti, Zn, Br, and Sn with the density of air traffic at the airport. Analysis of the aviation fuel samples by PIXE indicates that major fractions of Pb, Sn, Br, Zn, Ni, Fe, V, Ca, and S observed in these aerosol studies come from the aircraft engine exhaust.

• OSTI ID: 7367558
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 46:10; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR POLLUTION
AIRCRAFT
ALKALI METALS
ALKALINE EARTH METALS
ARSENIC
BARIUM
BEAMS
BISMUTH
BROMINE
CADMIUM
CALCIUM
CHEMICAL ANALYSIS
CHLORINE
CHROMIUM
COBALT
COLLOIDS
COPPER
DISPERSIONS
EARTH ATMOSPHERE
ELEMENTS
EXHAUST GASES
GASEOUS WASTES
HALOGENS
IODINE
IRON
LEAD
MANGANESE
MERCURY
METALS
MOLYBDENUM
NICKEL
NIOBIUM
NONDESTRUCTIVE ANALYSIS
NONMETALS
NUCLEON BEAMS
PARTICLE BEAMS
PARTICLE SIZE
PARTICLES
PHOSPHORUS
POLLUTION
POTASSIUM
PROTON BEAMS
QUANTITY RATIO
REFRACTORY METALS
RUBIDIUM
SAMPLING
SELENIUM
SEMIMETALS
SILICON
SILVER
SIZE
SOLS
STRONTIUM
SULFUR
TIN
TITANIUM
TRANSITION ELEMENTS
VANADIUM
WASTES
X-RAY EMISSION ANALYSIS
YTTRIUM
ZINC
ZIRCONIUM