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Chlorine deposition on dust particles in marine atmosphere
Author(s) -
Zhang Daizhou,
Iwasaka Yasunobu
Publication year - 2001
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2001gl013333
Subject(s) - chlorine , atmosphere (unit) , deposition (geology) , particle (ecology) , environmental chemistry , scavenging , dust storm , mineralogy , chemistry , materials science , aerosol , geology , physics , meteorology , metallurgy , oceanography , paleontology , sediment , biochemistry , organic chemistry , antioxidant
A scanning electron microscope and an energy dispersive X‐ray spectrometer were applied to analyze the particles collected during dust‐storm events at southwestern Japan in spring 2000. Particle morphology and elemental composition were investigated and the weight ratios of different elements in individual particles were obtained. The results indicated that, besides the coagulation of sea‐salt and dust particles, chlorine could deposit onto dust particles through the absorption of chlorine‐containing gases when the particles passed through the marine atmosphere between China and Japan. The quantitative estimation revealed that the chlorine deposition on many particles was not negligible compared to sulfur deposition, suggesting that dust particles could remarkably modify the chlorine chemistry in marine atmosphere and possibly vise versa.