{"created":"2021-03-01T06:34:01.267127+00:00","id":28234,"links":{},"metadata":{"_buckets":{"deposit":"783b9a09-e957-49fb-82bf-a092008b27fe"},"_deposit":{"id":"28234","owners":[],"pid":{"revision_id":0,"type":"depid","value":"28234"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00028234","sets":["453:456","503:836:1555:1581"]},"item_7_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Preliminary observations on the distribution of Cu, Pb, Cd and Zn in river and sea waters and behaviour of them in estuary."}]},"item_7_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1980-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"136","bibliographicPageStart":"129","bibliographicVolumeNumber":"2","bibliographic_titles":[{"bibliographic_title":"新潟大学積雪地域災害研究センター研究年報"},{"bibliographic_title":"新潟大学積雪地域災害研究センター研究年報","bibliographic_titleLang":"en"}]}]},"item_7_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"This report describes the distribution and speciation of Cu, Pb, Cd and Zn in natural waters and the laboratory experiments to examine the effects on river water of NaCl. Samples were collected from Tenpaku River, Kiso River, Toyo River and Atsumi Bay. The distribution of labile and total metales were determined by differential pulse anodic stripping voltammetry (DPASV) before and after u. v. irradiation. CornpIexing capacity was determined by the method proposed by CHAU (1974). Analysis of Tenpaku River water gave an apparent complexing capacity of 4×10^<-8> M Cu equivalent as shown in Fig.2. Complexing Capacity of Kiso River waters ranged from 1 to 2×10^<-8>M Cu equivalent. To Examine the effects on river water of NaCI, 3g NaCI was added to every 100ml water samples. After standing for 24hr. the mixtures were filtered through 0.45μ membrane filters (Millipore corp.) to separate the resaluting flocculants. The acidified filtrates were irradiated by u. v. for 5 hr. and measured by DPASV for Cu, Pb, Cd and Zn. The extent of removal, relative to the river water, was 62-94% for Zn, approximateIy 100% for Pb and 74-100% for Cu. The ranges of metal ion concentrations in river waters were (×10^<-8>M) 0.6-5.8 for Cu, 0.4-3.1 for Pb, trace for Cd and 4.2-42 for Zn, and in sea waters 0.4-2.7 for Cu, 0.5-2.2 for Pb, trace for Cd and 1.8-8.7 for Zn (Table 1). The Iabile metal ion concentrations were determined as (×10^<-8>M) 0-0.4 for Cu, 0-1.6 for Pb and 0.3-22 for Zn. There is no cIear relationship between total ion concentrations and chlorinity as shown in Fig. 3. The labile Cu and Pb couId not be detected in many fresh water and sea water samples, while labile Zn was found in all samples (Table 1). These results may be explained by the order of stability for divalent metal ions proposed by IRVING and WILLIAMS (1948). The results obtained in this work support the proposal of SHOLKOVITZ and his co-workers which the fIocculation of dissolved organic and inorganic matter during the mixing of river water and sea water may play an important role in the chemical mass-balance between the rivers and the ocean.","subitem_description_type":"Abstract"}]},"item_7_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"162169","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Sato, Osamu"}]}]},"item_7_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"新潟大学積雪地域災害研究センター"}]},"item_7_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_7_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00183327","subitem_source_identifier_type":"NCID"}]},"item_7_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03877892","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"佐藤, 修"}],"nameIdentifiers":[{"nameIdentifier":"162168","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":"2019-08-20"}],"displaytype":"detail","filename":"2_129-136.pdf","filesize":[{"value":"506.4 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"2_129-136.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/28234/files/2_129-136.pdf"},"version_id":"7e5b7f6d-6757-4e79-ad06-750cca61c1dd"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"河川水, 海水のCu, Pb, Cd, Znの分布と, その河口域における挙動の予察的研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"河川水, 海水のCu, Pb, Cd, Znの分布と, その河口域における挙動の予察的研究"},{"subitem_title":"河川水, 海水のCu, Pb, Cd, Znの分布と, その河口域における挙動の予察的研究","subitem_title_language":"en"}]},"item_type_id":"7","owner":"1","path":["456","1581"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-03-03"},"publish_date":"2016-03-03","publish_status":"0","recid":"28234","relation_version_is_last":true,"title":["河川水, 海水のCu, Pb, Cd, Znの分布と, その河口域における挙動の予察的研究"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T03:58:11.369908+00:00"}