@inproceedings{oai:repo.qst.go.jp:00053774,
 author = {Nakanishi, Takahiro and Aono, Tatsuo and Yamada, Masatoshi and Kusakabe, Masashi and 中西 貴宏 and 青野 辰雄 and 山田 正俊 and 日下部 正志},
 book = {Proceedings of the Workshop on Environmental Radioactivity (KEK Proceedings)},
 month = {Dec},
 note = {Geographical distributions of cosmogenic natural radionuclides 32P and 33P in surface seawater were investigated in the western North Pacific (0 to 48.3 N).  An in situ large-volume filtration system equipped with adsorbents for dissolved P was used to collect the nuclides in the water column.  Radioactive P inventories of total dissolved P in the subarctic region and its front were higher than that in the tropical and subtropical zone.  The 33P/32P activity ratios indicated rapid export of particulate matter from the euphotic zone in the subarctic region.},
 pages = {53--55},
 title = {Distributions of 32P and 33P in the western North Pacific with multiple-unit in situ large-volume filtration systems},
 volume = {7},
 year = {2006}
}