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Impact of air pollution on wet deposition of mineral dust aerosols
Author(s) -
Fan SongMiao,
Horowitz Larry W.,
Levy Hiram,
Moxim Walter J.
Publication year - 2004
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 - 10.1029/2003gl018501
Subject(s) - mineral dust , deposition (geology) , environmental science , aerosol , pollution , atmospheric sciences , atmospheric dust , asian dust , air pollution , cloud condensation nuclei , scavenging , aeolian processes , mineral , environmental chemistry , arid , meteorology , geology , chemistry , geography , geomorphology , structural basin , ecology , paleontology , biochemistry , organic chemistry , biology , antioxidant
Mineral dust aerosols originating from arid regions are simulated in an atmospheric global chemical transport model. Based on model results and observations of dust concentration, we hypothesize that air pollution increases the scavenging of dust by producing high levels of readily soluble materials on the dust surface, which makes dust aerosols effective cloud condensation nuclei (CCN). This implies that air pollution could have caused an increase of dust deposition to the coastal oceans of East Asia and a decrease by as much as 50% in the eastern North Pacific.