Physics
Scientific paper
Aug 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.2505s&link_type=abstract
Geophysical Research Letters, Volume 27, Issue 16, p. 2505-2508
Physics
4
Atmospheric Composition And Structure: Constituent Sources And Sinks, Atmospheric Composition And Structure: Pollution-Urban And Regional, Atmospheric Composition And Structure: Troposphere-Composition And Chemistry, Atmospheric Composition And Structure: Troposphere-Constituent Transport And Chemistry
Scientific paper
The analysis of C2-C6 non-methane hydrocarbons (NMHCs) was conducted at remote site in Oki Island, Japan from July 24-August 10, 1998. Lower molecular weight hydrocarbons, C2-C5 alkanes, ethene, acetylene, propene, and isoprene accounted for more than 90% of the total measured hydrocarbons. The study of trajectory analysis revealed that East Asia Pacific Rim Region is significantly contaminated from the anthropogenic emission transported from Asian continent by rapid convective movement of air masses. Air masses originating from Pacific Ocean and crossing over Japanese Island were rich in C3-C5 hydrocarbon. On the contrary, the air masses arriving directly to the site without any prior continental influence were more aged maritime air masses.
Akimoto Hikota
Kajii Yoshizumi
Sharma U. K.
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