{"created":"2025-06-19T02:50:57.379896+00:00","id":2001655,"links":{},"metadata":{"_buckets":{"deposit":"d6246369-037b-4f4f-9ef3-d3b797377979"},"_deposit":{"created_by":56,"id":"2001655","owners":[56],"pid":{"revision_id":0,"type":"depid","value":"2001655"},"status":"published"},"_oai":{"id":"oai:air.repo.nii.ac.jp:02001655","sets":["597:598:1128:1749774711247"]},"author_link":[],"control_number":"2001655","item_30001_access_rights4":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_30001_bibliographic_information17":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2025-03-01","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"23","bibliographicPageStart":"15","bibliographicVolumeNumber":"80","bibliographic_titles":[{"bibliographic_title":"秋田大学教育文化学部研究紀要 自然科学","bibliographic_titleLang":"ja"}]}]},"item_30001_creator2":{"attribute_name":"作成者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"髙野, 美桜","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"TAKANO, Mio","creatorNameLang":"en","creatorNameType":"Personal"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"秋田大学","affiliationNameLang":"ja"},{"affiliationName":"Akita University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"西川, 竜二","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"NISHIKAWA, Ryoji","creatorNameLang":"en","creatorNameType":"Personal"}]}]},"item_30001_description8":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"The conventional standard for ventilation in schools is that a carbon dioxide concentration of 1500 ppm or less is desirable, and ventilation equipment is provided accordingly. However, for the purpose of preventing the spread of novel coronavirus infections, 1000 ppm or less is now considered desirable (according to a July 2022 recommendation). In this study, we conducted an observational survey of the use of ventilation fans in university classrooms and measured indoor carbon dioxide concentration, air temperature, and relative humidity in FY2023, after the epidemic of novel coronavirus infection had died down. The results showed that even when the existing ventilation system was operated at maximum capacity, the carbon dioxide concentration in the room sometimes exceeded 1000 ppm when the number of people in the room exceeded approximately 60% of the capacity. Even when the number of people in the room was small, the carbon dioxide concentration sometimes exceeded the standard value if the ventilation fan was not used in the immediately preceding class. To prevent infectious diseases, it is necessary to ensure that ventilation fans are used during classes. In addition, maintenance of ventilation equipment is essential, and it is desirable to update the equipment with higher ventilation capacity.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_30001_file22":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2025-06-19"}],"filename":"kbs80(15).pdf","filesize":[{"value":"2.0 MB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"url":"https://air.repo.nii.ac.jp/record/2001655/files/kbs80(15).pdf"},"version_id":"6884cdc1-17e5-4680-9f3f-84a898562c51"}]},"item_30001_identifier_registration13":{"attribute_name":"identifier_registration","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.20569/0002001655","subitem_identifier_reg_type":"JaLC"}]},"item_30001_language10":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_30001_publisher9":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"秋田大学教育文化学部","subitem_publisher_language":"ja"}]},"item_30001_resource_type11":{"attribute_name":"item_30001_resource_type11","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_30001_source_identifier16":{"attribute_name":"収録物識別子","attribute_value_mlt":[{"subitem_source_identifier":"2433-4960","subitem_source_identifier_type":"EISSN"},{"subitem_source_identifier":"AA12812337","subitem_source_identifier_type":"NCID"}]},"item_30001_subject7":{"attribute_name":"主題","attribute_value_mlt":[{"subitem_subject":"University Classrooms","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Ventilation facilities","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Carbon Dioxide Concentration","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Air Quality","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Infection Prevention","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"大学教室","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"換気設備","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"二酸化炭素濃度","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"空気環境","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"感染症予防","subitem_subject_language":"ja","subitem_subject_scheme":"Other"}]},"item_30001_title0":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"新型コロナウイルス感染症流行後における大学教室の換気と空気・温熱環境の実態調査","subitem_title_language":"ja"},{"subitem_title":"Investigation of Ventilation, Indoor Air Quality, and Thermal Environment in University Classrooms Following the COVID-19 Pandemic","subitem_title_language":"en"}]},"item_30001_version_type12":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_title":"新型コロナウイルス感染症流行後における大学教室の換気と空気・温熱環境の実態調査","item_type_id":"30001","owner":"56","path":["1749774711247"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-06-19"},"publish_date":"2025-06-19","publish_status":"0","recid":"2001655","relation_version_is_last":true,"title":["新型コロナウイルス感染症流行後における大学教室の換気と空気・温熱環境の実態調査"],"weko_creator_id":"56","weko_shared_id":-1},"updated":"2025-06-19T04:36:51.767579+00:00"}