Interaction of airborne particles with gases

Smith, Benjamin; Wagman, Jack; Fish, B.R.

doi:10.1021/es60029a001

Cited by 31 publications

(14 citation statements)

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“…In previous central Pacific cruises, Cline and Bates (1983), Andreae and Raemdonck (1983), and measured DMS in surface water and found that the concentrations were highest within 5 ° of the Equator ('-'400 ng/L compared with < 100 ng/L at higher latitudes). Nevertheless, in the marine atmosphere, it is very likely that other existing com-pounds (e.g., oxides of Fe, A1, Ca) may catalytically expedite the oxidation (Urone et al, 1968;Smith et al, 1969). Hoyt's measurements of DMS on our cruise (private communication, California State Univeristy, San Luis Obispo) generally agreed with previous data.…”

Section: Formation Of Sulfate Aerosolssupporting

confidence: 86%

A study of marine aerosols over the Pacific Ocean

Parungo¹,

Nagamoto²,

Rosiński

et al. 1986

J Atmos Chem

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Aerosol samples were collected on a Pacific cruise from 47°N to 55°S. Particle morphology, concentrations, and size distributions were analyzed with an electron microscope; elemental compositions of individual particles were determined with an X-ray energy spectrometer; and chemical compositions of bulk samples were measured with an ion chromatograph. Temporal and spatial variations of aerosol physico-ehemical characteristics were studied in relation to ocean currents and atmospheric parameters. The results show that number and mass concentrations of primary particles depend mainly on surface wind speeds. However the ratios between the major ions, e.g., Na ÷, CI-, and Mg *+, are similar to the ratios in seawater regardless of location or meteorological conditions. The concentrations of secondary aerosols, e.g., non-seasalt sulfate, nitrate, and ammonium particles, show maxima at upwelling regions, such as along the California coast, at the Equator, and near the Chatham Rise where ascending motion brings nutrient-riched deep water into the surface layer. The number concentrations of small sulfate particles and large nitrate-coated particles showed diurnal variations with maxima in the early afternoon and minima at night, indicating that the particles are the products of photo-chemical reactions. Their precursor gases, e.g., CH3 SCH3, NO, and NHa are known to be released from seawater in upweiling regions where biological activities thrive.

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Section: Formation Of Sulfate Aerosolssupporting

confidence: 86%

A study of marine aerosols over the Pacific Ocean

Parungo¹,

Nagamoto²,

Rosiński

et al. 1986

J Atmos Chem

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“…Thus, the presence of nuclei is a dominant factor in the formation and growth of aerosol. Smith et al (1969) studied reactions of SO, (no light source) with submicron particles of Fe304, A1203, lead oxides, and platinum. These particles were generated by an exploding-wire technique and were allowed to interact with sulfur-35-labeled SO, at ppm concentrations.…”

Section: Heterogeneous Reaction Systemsmentioning

confidence: 99%

Oxidation sulfur dioxide in polluted atmospheres. Review

Bufalini¹

1971

Environ. Sci. Technol.

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“…An estimation of the quantity of sulfur dioxide sorbed on metal and metal oxide particles has been made by Smith et al (1969). Aerosols containing particles of FesO*, AI2O3, Pb02, or platinum in the size range of 0.01 to 0.1 µ were generated by the exploding wire technique.…”

mentioning

confidence: 99%