Nishiyama Reservoir: Lead Sources, Inventory, and the Influence of the Nagasaki Atomic Bomb

Autor:	Hideo Yamazaki, Hiroshi Moriwaki, Kenshi Katahira, Shusaku Yoshikawa, Yoko Saito-Kokubu, Miho Ishitake
Rok vydání:	2013
Předmět:	Lead (geology) Hypocenter Health Toxicology and Mutagenesis Environmental chemistry Geochemistry Soil Science Environmental Chemistry Sediment Pollution Sediment core Geology
Zdroj:	Soil and Sediment Contamination: An International Journal. 22:1003-1012
ISSN:	1549-7887 1532-0383
DOI:	10.1080/15320383.2013.770440
Popis:	Sediment core samples were obtained from Nishiyama Reservoir, 3 km east of the hypocenter of the Nagasaki atomic bomb, to evaluate both sources and inventories of lead delivery to the sediments. Using microwave digestions and ICP-MS analytical techniques, elevated concentrations of isotopically unique lead were identified in the 1945 sediment horizon. These results illustrate that the Nagasaki bomb attack can be linked with unique lead loading to the sediments in the region of the hypocenter. There is a possibility that the roll-up of in-situ lead accounted for a majority of the increase in lead flux delivered to reservoir sediments during the atomic bomb attack.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a4e92258a54f1f50c711a4171524f262 https://doi.org/10.1080/15320383.2013.770440 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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