Atmospheric peroxides over the North Pacific during IOC 2002 shipboard experiment
作者： Young-Mi Kim , Meehye Lee , Wonil Chang , Gangwoong Lee , Kyung-Ryul Kim
DOI: 10.1016/J.CHEMOSPHERE.2007.05.057
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摘要: Abstract Atmospheric hydrogen peroxide and methyl hydroperoxide were determined onboard the Melville over North Pacific from Osaka to Honolulu during May–June 2002. The concentrations of H 2 O CH 3 OOH increased 0.64 ± 0.57 ppbv 0.27 ± 0.59 ppbv in subpolar region (30–50°N) 1.96 ± 0.95 ppbv 1.56 ± 1.3 ppbv subtropical (24–30°N). increase towards Equator was more pronounced for than . In contrast, levels CO decreased at lower latitudes as air mass aged, denoted by ratios C /CO 8 /C 6 showed a clear diurnal variation with maximum around noon minimum before sunrise. Frequently, peroxides remained 1 ppbv dark even gradually after sunset. addition, 4 aged air, which implies that these alkenes emitted ocean surface. As result, reaction biogenic suggested be potential source marine latitudes.
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