{"created":"2021-03-01T07:00:18.561302+00:00","id":40656,"links":{},"metadata":{"_buckets":{"deposit":"fbf3c4e2-7937-460d-9264-1147e5eb6626"},"_deposit":{"id":"40656","owners":[],"pid":{"revision_id":0,"type":"depid","value":"40656"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00040656","sets":["40:6494:7162:7180:7181","9:504:7165:7182:7183"]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-03-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"152","bibliographicPageStart":"142","bibliographicVolumeNumber":"35","bibliographic_titles":[{"bibliographic_title":"Coastal marine science"}]}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Hydrocarbon pollution is one of the most serious problems facing many developed and developing countries, including Malaysia. Aliphatic hydrocarbons comprising straight chain carbons are class of hydrocarbon pollution indices in the environment of anthropogenic and natural origins. To identify the historical trend of development, sediment samples were collected using a gravity corer from the narrow waterway of Johor Strait in the southern part of Peninsular Malaysia. The core samples were soxhlet extracted, purified and fractionated using 2-step column chromatography followed by instrumental analysis with Gas Chromatograph Flame Ionization Detector. The results showed that the hydrocarbon contamination followed 4 distinct patterns. The pre-war period or at the onset of industrial development has seen a minimum input of alkanes. The World War II and postwar period (1945-1960) saw a decrease in hydrocarbon contamination because of the significant reduction in oil transportation. The third phase (1960-1990) saw a rapid increase in hydrocarbon input due to rapid economic development, industrialization and motorization and human population growth. The 4th phase (1990-present) saw a trend toward decreasing contamination due to strict environmental regulations (1990-2005). Surface aliphatic hydrocarbon concentration may have resulted from port operations, shipping activities and accidental spills. Total alkane concentration for the surface, middle and bottom core were 3180, 835 and 263μgg(-1) dry weight, respectively. Fresh hydrocarbon input was inferred from the significant absence of pristane and phytane.","subitem_description_type":"Abstract"}]},"item_4_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"Proceedings of the Horiba International Conference \"New Direction of Ocean Research in the Western Pacific\" : Past, Present and Future of UNESCO/IOC/WESTPAC Activity for 50 years and the JSPS Project \"Coastal Marine Science\"","subitem_description_type":"Other"},{"subitem_description":"Section I: Research Articles/Pollution","subitem_description_type":"Other"}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/00040647","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"International Coastal Research Center, Atmosphere and Ocean Research Institute, the University of Tokyo"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11957899","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13493000","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"452","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"東京大学大気海洋研究所国際沿岸海洋研究センター"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Water Research Unit, School of Science and Technology, Universiti Malaysia Sabah"},{"subitem_text_value":"Laboratory of Environmental Forensics, Faculty of Environmental Studies, Universiti Putra Malaysia"},{"subitem_text_value":"Department of Natural Products, Institute of Bioscience, Universiti Putra Malaysia"},{"subitem_text_value":"Marine Ecosystem Research Center (EKOMAR), Faculty of Science and Technology, Universiti Kebangsaan Malaysia"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Sakari, Mahyar"}],"nameIdentifiers":[{"nameIdentifier":"93440","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Zakaria, Mohamad Pauzi"}],"nameIdentifiers":[{"nameIdentifier":"93441","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Lajis, Nordin Haji"}],"nameIdentifiers":[{"nameIdentifier":"93442","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Mohamed, Che Abd Rahim"}],"nameIdentifiers":[{"nameIdentifier":"93443","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Abdullah, Mohd Harun"}],"nameIdentifiers":[{"nameIdentifier":"93444","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-14"}],"displaytype":"detail","filename":"CMS350122.pdf","filesize":[{"value":"1.3 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"CMS350122.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/40656/files/CMS350122.pdf"},"version_id":"1b9eec5d-cd9b-4cf4-9d67-2174e4951db0"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"n-Alkane","subitem_subject_scheme":"Other"},{"subitem_subject":"petroleum hydrocarbon pollution","subitem_subject_scheme":"Other"},{"subitem_subject":"pollution history","subitem_subject_scheme":"Other"},{"subitem_subject":"Johor Strait","subitem_subject_scheme":"Other"},{"subitem_subject":"environmental regulations","subitem_subject_scheme":"Other"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Reconstruction of aliphatic hydrocarbons history and sources from sedimentary record of the Johor Strait, Malaysia","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Reconstruction of aliphatic hydrocarbons history and sources from sedimentary record of the Johor Strait, Malaysia"}]},"item_type_id":"4","owner":"1","path":["7183","7181"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-05-25"},"publish_date":"2012-05-25","publish_status":"0","recid":"40656","relation_version_is_last":true,"title":["Reconstruction of aliphatic hydrocarbons history and sources from sedimentary record of the Johor Strait, Malaysia"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T04:16:13.746766+00:00"}