{"created":"2023-05-15T12:04:23.919421+00:00","id":8940,"links":{},"metadata":{"_buckets":{"deposit":"eb4d8b98-cc25-43ca-a853-7cb3da799ca3"},"_deposit":{"created_by":3,"id":"8940","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"8940"},"status":"published"},"_oai":{"id":"oai:iwate-u.repo.nii.ac.jp:00008940","sets":["1504:1505"]},"author_link":["70922","70921"],"item_28_alternative_title_23":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Determination of Toxic Elements as Chemical Fallout in Environment Samples around an Incinerator Surrounded with Grassland, and Evaluation of Related Health Risk"}]},"item_28_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2003-03-01","bibliographicIssueDateType":"Issued"},"bibliographic_titles":[{}]}]},"item_28_date_6":{"attribute_name":"登録日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2011-10-21"}]},"item_28_description_11":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"科学研究費補助金[基盤研究C](課題番号12680560)研究成果報告書","subitem_description_type":"Abstract"},{"subitem_description":"付録1・2(pp.59-64)は学術雑誌掲載論文のため，削除しております．","subitem_description_type":"Abstract"}]},"item_28_description_12":{"attribute_name":"Abstract","attribute_value_mlt":[{"subitem_description":"本研究では清掃工場から大気中に放出され降下物として周辺環境を汚染する有害元素に注目し、平成12〜13年度に野外調査を実施した。その結果、清掃工場近傍において表面土壌中にアンチモン(Sb)が自然界値を越えて存在し、近傍(300m程度の範囲内)ほどSb濃度が高まっていることが水平分布、鉛直分布から確認された。牧草中Sb濃度も清掃工場から離れると減少すること、洗浄することでSb濃度が減少し、清掃工場から離れると牧草中Sb濃度が減少すること、さらに清掃工場近傍の大気中からSbが検出されることから、Sbは清掃工場に由来する有害元素降下物であると断定できる。\n\n野外調査おいて清掃工場に起因するダイオキシン類以外の有害元素として同定したSbに注目し、Sbに関わる人間への健康リスクアセスメントに必要な知見を日本及び日本人について集積し、リスク評価モデルの重要な一部分となる人体内のSb挙動を評価する数学モデルの構造を検討した。その結果、鉛についての体内代謝モデルをSb独自の決定臓器(標的臓器)や排泄機構を考慮して改良することで、Sbについての体内代謝モデル案を構成した。今後は計算シミュレーションを実施して、モデルの改良およびモデルの検証を行ってゆく必要がある。\n\nまた平成14年度には、牛乳摂取にともなう人間へのSb曝露に関して最も重要な基礎資料となるSbの牧草への経根吸収特性をポット実験により把握した。その結果、ほとんど全ての牧草試料でSbが検出されることから、Sbは牧草に経根吸収されること、葉中Sb濃度が茎中Sb濃度を上回り、Sbは茎よりも葉に濃縮されることがわかった。土壌中Sb濃度が極端に高くなると牧草中Sb濃度は明らかに増加する。その場合、牧草の収穫を重ねても牧草中Sb濃度に変化がほとんどみられないことから、牧草が吸収できるSbの量には上限がある可能性が示唆された。","subitem_description_type":"Other"},{"subitem_description":"The objectives of this study are to determine toxic elements as air deposition in environment samples around an incinerator surrounded with grass field through field survey, and to examine some aspects of health risk with experiments. Soils, plants and particle matter in air were collected at several points around it. Concentrations of trace elements were measured by means of Instrumental Neutron Activation Analysis.\n\nAntimony (Sb) concentrations in surface soils decrease monotonously in near area of the incinerator within 300m distance. Vertical soil profile in vicinity of it denotes that Sb in excess of natural background value of 1mg/kg remaining within 12cm depth, has been successively accumulated in surface. Sb in grass samples also decrease with distance from the incinerator and washing with water is able to make them clean. These facts imply that antimony is considered as chemical fallout exhausted form the incinerator.\n\nIt is significantly important that Sb is one of toxic substances released from incinerators beside dioxins. To properly evaluate the potential health risks of Sb near it, Sb concentrations in environment, and Japanese organs and tissues were collected from previous works. The data is not sufficient to estimate antimony exposure through both dietary and inhalation intake. Concerning with the physiologically based pharmacokinetic model (PBPK model) of lead, the PBPK model of antimony exposure to reference Japanese is constructed, taking critical organs and critical excretion pathways into account. Further activities are necessary for estimating parameter values in it, and improving it more precisely.\n\nSome basic experiments on Sb absorption of grass through root were performed. Detecting Sb in almost samples denote that they absorb Sb. Stem concentrations were smaller than leaf ones, indicating Sb is accumulated in leaf. Sb in grass is getting bigger with increasing Sb in soil, consequently having the upper limit of Sb in grass.","subitem_description_type":"Other"}]},"item_28_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{}],"names":[{"name":"SATTA, Naoya"}]}]},"item_28_text_4":{"attribute_name":"著者(機関)","attribute_value_mlt":[{"subitem_text_value":"岩手大学農学部"}]},"item_28_version_type_27":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"颯田, 尚哉"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-11-14"}],"displaytype":"detail","filename":"kaken12680560.pdf","filesize":[{"value":"5.3 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"kaken12680560.pdf","url":"https://iwate-u.repo.nii.ac.jp/record/8940/files/kaken12680560.pdf"},"version_id":"475f21f3-84f1-4d4b-96f4-d3b1e5b2df99"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Air","subitem_subject_scheme":"Other"},{"subitem_subject":"Antimony","subitem_subject_scheme":"Other"},{"subitem_subject":"Chemical fallout","subitem_subject_scheme":"Other"},{"subitem_subject":"Grass Field","subitem_subject_scheme":"Other"},{"subitem_subject":"Health Risk","subitem_subject_scheme":"Other"},{"subitem_subject":"Incinerator","subitem_subject_scheme":"Other"},{"subitem_subject":"Soil","subitem_subject_scheme":"Other"},{"subitem_subject":"Toxic Element","subitem_subject_scheme":"Other"},{"subitem_subject":"アンチモン","subitem_subject_scheme":"Other"},{"subitem_subject":"健康リスク","subitem_subject_scheme":"Other"},{"subitem_subject":"土壌","subitem_subject_scheme":"Other"},{"subitem_subject":"大気","subitem_subject_scheme":"Other"},{"subitem_subject":"有害元素","subitem_subject_scheme":"Other"},{"subitem_subject":"清掃工場","subitem_subject_scheme":"Other"},{"subitem_subject":"牧草","subitem_subject_scheme":"Other"},{"subitem_subject":"酪農地域","subitem_subject_scheme":"Other"},{"subitem_subject":"降下物","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_title":"清掃工場周辺の酪農地域における有害元素降下物の同定とそのリスク評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"清掃工場周辺の酪農地域における有害元素降下物の同定とそのリスク評価"}]},"item_type_id":"28","owner":"3","path":["1505"],"pubdate":{"attribute_name":"公開日","attribute_value":"2011-10-21"},"publish_date":"2011-10-21","publish_status":"0","recid":"8940","relation_version_is_last":true,"title":["清掃工場周辺の酪農地域における有害元素降下物の同定とそのリスク評価"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-05-16T11:21:57.189199+00:00"}