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Ion fractionation between fluorine and chlorine at the air-sea interface was investigated. Radiochemical experiments showed a decrease in the F/CI ratio for laboratory aerosols produced from sea water. Marine aerosols showed an increase in the F/Cl ratio with a possible contribution from airborne dust contamination. Jet drops in the laboratory and naturally occurring marine jet drops showed little to no change. Radiochemical tracers also showed that drying of sea water droplets would sometimes increase the F/Cl ratio of the salt residue, whereas acidification of the sea water always caused the residue to have a decreased ratio.
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Wilkniss et al. (1971) studied this question.
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