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Contribution of particulate sulfate and organic carbon to cloud condensation nuclei in the marine atmosphere
Author(s) -
Matsumoto Kiyoshi,
Tanaka Hiroshi,
Nagao Ippei,
Ishizaka Yutaka
Publication year - 1997
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 - 10.1029/97gl00541
Subject(s) - cloud condensation nuclei , sulfate , atmosphere (unit) , aerosol , environmental science , particulates , total organic carbon , atmospheric sciences , pollution , carbon fibers , environmental chemistry , air pollution , sulfate aerosol , meteorology , geology , chemistry , materials science , geography , ecology , organic chemistry , composite number , composite material , biology
To identify the source of cloud condensation nuclei(CCN) in the marine atmosphere, simultaneous measurements of aerosol chemical components and CCN concentration were made over more than a year at Hahajima, the Ogasawara Islands, located on the Northwest Pacific Ocean in the lee of Eastern Asian large pollution sources. Large loading of CCN in continental air mass and long‐distance transportation to the remote ocean were confirmed. Non‐seasalt sulfate and water soluble organic carbon were dominant in fine aerosols and their concentration revealed significant relationships with CCN concentration, suggesting that not only sulfate but also organic aerosols play a key role in CCN formation, especially in the background atmospheric condition.