{"created":"2023-05-15T14:35:10.217083+00:00","id":45361,"links":{},"metadata":{"_buckets":{"deposit":"7b0b212c-fd3e-4aab-8125-641eff92cf7d"},"_deposit":{"created_by":1,"id":"45361","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"45361"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00045361","sets":["1"]},"author_link":["450610","450614","450613","450616","450612","450617","450615","450611"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"75","bibliographicPageStart":"71","bibliographicVolumeNumber":"100","bibliographic_titles":[{"bibliographic_title":"Journal of Environmental Radioactivity"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The total 239+240Pu activities and 240Pu/239Pu atom ratios in surface soil samples (0-5 cm) in the Kumtag Desert in western Gansu Province, and in a soil core sample in Lanzhou were investigated using a sector-field ICP-MS. In the surface soil samples, 239+240Pu activities in fine particles (<150 &#61549;m) were 1.3 to 2.1 times of those in coarse particles which ranged from 0.005 to 0.157 mBq/g. Atom ratios of 240Pu/239Pu in the surface soils ranged from 0.168 to 0.192 with a mean of 0.182 &#61617; 0.008. The mean ratio was similar to the typical global fallout value although the Kumtag Desert was believed to have received close-in fallout derived from Chinese nuclear weapons tests mainly conducted in the 1970s. Furthermore, the mean 240Pu/239Pu atom ratio observed in the soil core sample in Lanzhou was similar to the typical global fallout value. In the soil core sample, 239+240Pu activities in the various layers ranged from 0.012 to 0.23 mBq/g, and the inventory of 239+240Pu (32.4 Bq/m2, 0 -23 cm) was slightly lower than that expected from global fallout (42 Bq/m2) at the same latitude. Rapid downward migration of Pu isotopes was observed in Lanzhou soil core sample layers. The contribution of the 10 cm-deep top layers of surface soils to total inventory was only 17 %, while the contribution of deeper layers (10-23 cm) was as high as 83 %. The 239+240Pu activity levels and 240Pu/239Pu atom ratios in soils in Gansu Province, China are similar to those in atmospheric deposition samples collected in the spring in recent years in Japan. \n\\nKeywords: Pu isotope pollution; SF-ICP-MS; Soils; Global fallout.","subitem_description_type":"Abstract"}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0265-931X","subitem_source_identifier_type":"ISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Zheng, Jian"}],"nameIdentifiers":[{"nameIdentifier":"450610","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamada, Masatoshi"}],"nameIdentifiers":[{"nameIdentifier":"450611","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Wu, Fengchang"}],"nameIdentifiers":[{"nameIdentifier":"450612","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Liao, Haiqing"}],"nameIdentifiers":[{"nameIdentifier":"450613","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"鄭 建","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"450614","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山田 正俊","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"450615","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ｗｕ Ｆｅｎｇｃｈａｎｇ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"450616","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ｌｉａｏ Ｈａｉｑｉｎｇ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"450617","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Characterization of Pu concentration and its isotopic composition in soils of Gansu in northwestern China","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Characterization of Pu concentration and its isotopic composition in soils of Gansu in northwestern China"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-12-24"},"publish_date":"2008-12-24","publish_status":"0","recid":"45361","relation_version_is_last":true,"title":["Characterization of Pu concentration and its isotopic composition in soils of Gansu in northwestern China"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-16T00:04:37.758476+00:00"}