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Aliphatic Amine Interference in Indophenol Reaction for Ammonia-Nitrogen Determination and Its Possibility as Quantitative Method for Aliphatic Amines 脂肪胺干扰吲哚酚反应测定氨氮及其作为脂肪胺定量方法的可能性
Journal of Japan Society on Water Environment Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.1
S. Akao
{"title":"Aliphatic Amine Interference in Indophenol Reaction for Ammonia-Nitrogen Determination and Its Possibility as Quantitative Method for Aliphatic Amines","authors":"S. Akao","doi":"10.2965/jswe.46.1","DOIUrl":"https://doi.org/10.2965/jswe.46.1","url":null,"abstract":"","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80434853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Environmental Characteristics of Nutrients and Recent Changes in Blue-green Algae in the Aerobic Layer of Meromictic Lake Abashiri 巴什里分生湖好氧层蓝绿藻营养物质环境特征及近期变化
Journal of Japan Society on Water Environment Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.47
H. Mikami, Seiki Igarashi, M. Hatakeyama, Takaaki Watanabe, Takumi Iida, T. Kawajiri, Kaii Suezawa
{"title":"Environmental Characteristics of Nutrients and Recent Changes in Blue-green Algae in the Aerobic Layer of Meromictic Lake Abashiri","authors":"H. Mikami, Seiki Igarashi, M. Hatakeyama, Takaaki Watanabe, Takumi Iida, T. Kawajiri, Kaii Suezawa","doi":"10.2965/jswe.46.47","DOIUrl":"https://doi.org/10.2965/jswe.46.47","url":null,"abstract":"","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90805229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of Land Use Type on Water Quality and Organisms in a Small River of the Shizukuishi River Basin, Iwate Prefecture, Japan 日本岩手县静鸠石河流域一条小河土地利用类型对水质和生物的影响
Journal of Japan Society on Water Environment Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.61
Morio Tsuji, Tomoya Takahashi, Masaki Suzuki
{"title":"Effects of Land Use Type on Water Quality and Organisms in a Small River of the Shizukuishi River Basin, Iwate Prefecture, Japan","authors":"Morio Tsuji, Tomoya Takahashi, Masaki Suzuki","doi":"10.2965/jswe.46.61","DOIUrl":"https://doi.org/10.2965/jswe.46.61","url":null,"abstract":"","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90089505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Occurrence of Health-Related Microbes in Swimming Pools with Varying Usage 不同用途游泳池中健康相关微生物的发生
Journal of Japan Society on Water Environment Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.113
Yuki TAKAMATSU, Reina ISHIGURO, Yuno MEUCHI, Keisuke KURODA, Akihiko HATA
{"title":"Occurrence of Health-Related Microbes in Swimming Pools with Varying Usage","authors":"Yuki TAKAMATSU, Reina ISHIGURO, Yuno MEUCHI, Keisuke KURODA, Akihiko HATA","doi":"10.2965/jswe.46.113","DOIUrl":"https://doi.org/10.2965/jswe.46.113","url":null,"abstract":"集団感染症が報告されていない平常時において, 小学校やスポーツクラブなどのプールを対象に糞便汚染指標細菌・ウイルス, 腸管系ウイルスやレジオネラ属菌の検出を試み, 微生物汚染の実態調査と汚染要因の検証, 汚染指標の有効性評価を行った。利用状況等の条件によっては指標微生物の検出率が高くなった。大腸菌, F特異大腸菌ファージは培養法で検出され, 現行の管理手法では完全な不活化は困難だと考えられた。Pepper mild mottle virus, cross-assembly phageや, ヒト特異的なバクテロイデス属菌の遺伝子マーカーであるHF183は高頻度で検出され, 特にcross-assembly phage, HF183は水質管理下のプールにおいてもヒト糞便汚染指標としての有効性が示唆された。腸管系ウイルスは不検出であったが, 感染者の利用により, 感染力を保持したウイルスが滞留する可能性が示された。","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135355647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
汽水湖 (久美浜湾) における貧酸素水塊の解消過程－冬季の鉛直混合を阻害する淡水流入－ 咸水湖(久美滨湾)贫氧水块的消除过程-阻碍冬季垂直混合的淡水流入-
Journal of Japan Society on Water Environment Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.173
Yuki FUNAKOSHI, Masayuki TANAKA, Shiho KOBAYASHI, Tateki FUJIWARA
{"title":"汽水湖 (久美浜湾) における貧酸素水塊の解消過程－冬季の鉛直混合を阻害する淡水流入－","authors":"Yuki FUNAKOSHI, Masayuki TANAKA, Shiho KOBAYASHI, Tateki FUJIWARA","doi":"10.2965/jswe.46.173","DOIUrl":"https://doi.org/10.2965/jswe.46.173","url":null,"abstract":"汽水湖である久美浜湾では, 冬季に貧酸素水塊が二枚貝養殖に被害を及ぼすが, その消長の詳細は未解明である。これを明らかにするため, 水温, 塩分, 溶存酸素濃度の分布の季節変動を調べた。貧酸素水塊の解消過程では, 亜熱帯性の湖沼や閉鎖性内湾でみられるような冬季の鉛直混合はみられず, 12月から3月にかけて, 湾口部からの外海水の進入および河川水の連行 (entrainment) によって貧酸素水塊が徐々に縮小した。久美浜湾のような本州中部日本海側に位置し, 流入河川の流域の標高が高くない汽水湖では, 冬季に降水量が多く, 降雨や数日で融ける降雪がただちに淡水として海域に流入するため, 上層に強い密度成層が形成され, 鉛直混合が阻害されていた。その結果, 夏季に底層で発生した貧酸素水塊は, 冬季まで残存し, 湾口から流入した外海水によって持ち上げられ, 中層貧酸素水塊となり, 養殖漁場へと到達することが明らかになった。","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135562971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relationship between General Sewage Water Quality and Sewershed Characteristics in Tokyo Metropolitan Area 东京都市圈一般污水水质与下水道特性的关系
Journal of Japan Society on Water Environment Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.35
Yamato Miyawaki, Yuta Hatano, C. Yoshimura
{"title":"Relationship between General Sewage Water Quality and Sewershed Characteristics in Tokyo Metropolitan Area","authors":"Yamato Miyawaki, Yuta Hatano, C. Yoshimura","doi":"10.2965/jswe.46.35","DOIUrl":"https://doi.org/10.2965/jswe.46.35","url":null,"abstract":"","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86475747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nitrification Potentials in River Estuary Receiving High-Concentration Ammonium Brine Waste from Natural Gas and Iodine Production Plants
Journal of Japan Society on Water Environment Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.103
Yasuo Hoshiai, Shinichiro Ban, Hiroshi Ashizawa, Jun Kudou, Kazunori Miwa, Atsushi Higurasi, Hideyuki Yamaguchi, A. Terada, K. Hata, Shiro Kawano
{"title":"Nitrification Potentials in River Estuary Receiving High-Concentration Ammonium Brine Waste from Natural Gas and Iodine Production Plants","authors":"Yasuo Hoshiai, Shinichiro Ban, Hiroshi Ashizawa, Jun Kudou, Kazunori Miwa, Atsushi Higurasi, Hideyuki Yamaguchi, A. Terada, K. Hata, Shiro Kawano","doi":"10.2965/jswe.46.103","DOIUrl":"https://doi.org/10.2965/jswe.46.103","url":null,"abstract":"","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79850617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
諫早湾の植物プランクトン群集の成長に及ぼす干拓調整池水中の溶存有機態窒素の影響 对谏早湾浮游植物群集生长的填海调整池水中的溶解有机氮的影响
Journal of Japan Society on Water Environment Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.123
Rintaro KOYANAGI, Tomohiro SHIRAGAKI, Hiroyuki TAKASU
{"title":"諫早湾の植物プランクトン群集の成長に及ぼす干拓調整池水中の溶存有機態窒素の影響","authors":"Rintaro KOYANAGI, Tomohiro SHIRAGAKI, Hiroyuki TAKASU","doi":"10.2965/jswe.46.123","DOIUrl":"https://doi.org/10.2965/jswe.46.123","url":null,"abstract":"諫早湾では, 無機態窒素が枯渇状態でも赤潮が長期化する現象が頻発している。湾内には, 干拓調整池から溶存有機態窒素 (DON) を高濃度に含む池水が排水されており, これが湾内の赤潮を支える窒素源となっている可能性が指摘されている。本研究では, 諫早湾の海水に調整池から抽出した高分子溶存態有機物 (UF-DOM) を添加し, 湾内の植物プランクトンの成長が促進されるのかを検証した。諫早湾の海水に調整池由来UF-DOM, または調整池由来UF-DOMと抗生物質を添加し, 植物プランクトンの成長速度をサイズ分類群ごとに算出した。マイクロ植物プランクトンのみ, UF-DOM添加系とUF-DOM・抗生物質添加系の両方で成長が促進された。諫早湾の赤潮プランクトンの大部分はマイクロ植物プランクトンに分類されるため, 湾内への調整池由来のDONの流入は, 赤潮を支える窒素源としてその長期化に寄与している可能性がある。","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135355628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Changes of Sediment Microbial Flora under the Minamibenten Bridge of the Hirano River Sediment Remediation Project 平野河沉积物修复工程南岸桥下沉积物微生物区系变化
Journal of Japan Society on Water Environment Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.141
Satoshi SODA, Naomi KOJIMA
{"title":"Changes of Sediment Microbial Flora under the Minamibenten Bridge of the Hirano River Sediment Remediation Project","authors":"Satoshi SODA, Naomi KOJIMA","doi":"10.2965/jswe.46.141","DOIUrl":"https://doi.org/10.2965/jswe.46.141","url":null,"abstract":"合流式下水道越流水が流入する平野川では, 底質から発生するガスによって浮上するスカムが問題となっている。本研究では, 大阪府が2021～2022年に実施した底質改善の実証事業の効果を底質微生物叢の変化から検証することを目的とし, 16S rRNA遺伝子を対象とした次世代シーケンサー解析を行った。南弁天橋付近の水深4 mの底質の試験区には, 約二ヵ月ごとに硝酸カルシウムが散布された。底質は極めて嫌気状態にあり, メタン生成古細菌Methanosaeta属が優占し, 硫酸還元細菌は少なかった。河川表層で増殖し, 底質に沈降したと考えられる緑藻の葉緑体DNAも検出された。メタン生成古細菌の優占が継続したが, 試験区の微生物叢は, Betaproteobacteria綱, Methylophilales目, Thiobacillus属の細菌の比率が高くなり, 酸化還元電位の上昇や全硫化物含有量の低下によって特徴づけられた。","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135355912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Oxygen Consumption by Bottom-Layer Water and Sediment on Formation of Hypoxic Water in Lake Kitaura 基图拉湖底层水和沉积物耗氧量对低氧水体形成的影响
Journal of Japan Society on Water Environment Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.93
T. Kitamura, E. Masunaga, K. Ayukawa, T. Ouchi, Miyuki Yuzawa, Kazuki Satou, Y. Seike, T. Fukushima
{"title":"Effect of Oxygen Consumption by Bottom-Layer Water and Sediment on Formation of Hypoxic Water in Lake Kitaura","authors":"T. Kitamura, E. Masunaga, K. Ayukawa, T. Ouchi, Miyuki Yuzawa, Kazuki Satou, Y. Seike, T. Fukushima","doi":"10.2965/jswe.46.93","DOIUrl":"https://doi.org/10.2965/jswe.46.93","url":null,"abstract":"","PeriodicalId":16300,"journal":{"name":"Journal of Japan Society on Water Environment","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87143806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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