Occurrence Mechanism of Dissolved Musty-Odorant 2-Methylisoborneol in the Southern Basin of Lake Biwa during 2007－2017
Musty odor is an unavoidable problem for drinking water. 2－Methylisoborneol (2－MIB) is one of the major musty odorants that has been set as a quality standard for drinking water in Japan since 2004. Between 1988 and 1994, 2－MIB-producing cyanobacteria, like Phormidium tenue and Oscillatoria tenuis,...
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| Veröffentlicht in: | Japan biological society of water and waste 2020, Vol.56(3), pp.47-55 |
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| creator | YOKOI, TAKAHIRO NOGUCHI, AKIO FURUTA, SEIKO IKEDA, SYOHEI ICHISE, SATOSHI TAKEMOTO, KUNIKO SEGAWA, TOSHIHARU OGURA, AKIO |
| description | Musty odor is an unavoidable problem for drinking water. 2－Methylisoborneol (2－MIB) is one of the major musty odorants that has been set as a quality standard for drinking water in Japan since 2004. Between 1988 and 1994, 2－MIB-producing cyanobacteria, like Phormidium tenue and Oscillatoria tenuis, were observed at the intake basin of Keage Water Purification Plant (KWPP), which draws water from the southern basin of Lake Biwa (SBLB). However, 2－MIB occurred in the intake basin of KWPP and SBLB surface water between 2007 and 2017 (except 2013 and 2014) in the absence of 2－MIB-producing cyanobacteria. On average, 92% of total 2－MIB was detected as dissolved between 2007 and 2017, but only 60% was found as dissolved between 1988 and 1994. It is believed that the bottom water of SBLB was more contaminated with 2－MIB than the surface water, and P. tenue was found in the submerged plants at the bottom of the lake. The culture strain of P. tenue PTG, isolated in SBLB, effectively produced dissolved 2－MIB (D－2－MIB) under the light with the same photon flux density at the bottom of the lake. In conclusion, the D－2－MIB that occurred in SBLB between 2007 and 2017 was attributed to P. tenue attached to the plants that sank at the bottom of the lake. |
| doi_str_mv | 10.2521/jswtb.56.47 |
| format | Article |
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Between 1988 and 1994, 2－MIB-producing cyanobacteria, like Phormidium tenue and Oscillatoria tenuis, were observed at the intake basin of Keage Water Purification Plant (KWPP), which draws water from the southern basin of Lake Biwa (SBLB). However, 2－MIB occurred in the intake basin of KWPP and SBLB surface water between 2007 and 2017 (except 2013 and 2014) in the absence of 2－MIB-producing cyanobacteria. On average, 92% of total 2－MIB was detected as dissolved between 2007 and 2017, but only 60% was found as dissolved between 1988 and 1994. It is believed that the bottom water of SBLB was more contaminated with 2－MIB than the surface water, and P. tenue was found in the submerged plants at the bottom of the lake. The culture strain of P. tenue PTG, isolated in SBLB, effectively produced dissolved 2－MIB (D－2－MIB) under the light with the same photon flux density at the bottom of the lake. In conclusion, the D－2－MIB that occurred in SBLB between 2007 and 2017 was attributed to P. tenue attached to the plants that sank at the bottom of the lake.</description><identifier>ISSN: 0910-6758</identifier><identifier>EISSN: 1881-0438</identifier><identifier>DOI: 10.2521/jswtb.56.47</identifier><language>eng ; jpn</language><publisher>Osaka: Japanese Society of Water Treatment Biology</publisher><subject>2－Methylisoborneol ; Bacteria ; Dissolved chemicals ; Drinking water ; Freshwater ; Lake Biwa ; Odour ; Oscillatoria tenuis ; Phormidium tenue ; Water quality</subject><ispartof>Japanese Journal of Water Treatment Biology, 2020, Vol.56(3), pp.47-55</ispartof><rights>2020 by Japanese Society of Water Treatment Biology</rights><rights>Copyright 2020</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1987-db56ea81e07d33bb7c0aa2462fd07a25e459056a5f963b26ba0884748899edb73</citedby><cites>FETCH-LOGICAL-c1987-db56ea81e07d33bb7c0aa2462fd07a25e459056a5f963b26ba0884748899edb73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1882,4023,27922,27923,27924</link.rule.ids></links><search><creatorcontrib>YOKOI, TAKAHIRO</creatorcontrib><creatorcontrib>NOGUCHI, AKIO</creatorcontrib><creatorcontrib>FURUTA, SEIKO</creatorcontrib><creatorcontrib>IKEDA, SYOHEI</creatorcontrib><creatorcontrib>ICHISE, SATOSHI</creatorcontrib><creatorcontrib>TAKEMOTO, KUNIKO</creatorcontrib><creatorcontrib>SEGAWA, TOSHIHARU</creatorcontrib><creatorcontrib>OGURA, AKIO</creatorcontrib><title>Occurrence Mechanism of Dissolved Musty-Odorant 2-Methylisoborneol in the Southern Basin of Lake Biwa during 2007－2017</title><title>Japan biological society of water and waste</title><addtitle>Japanese J. Wat. Treat. Biol.</addtitle><description>Musty odor is an unavoidable problem for drinking water. 2－Methylisoborneol (2－MIB) is one of the major musty odorants that has been set as a quality standard for drinking water in Japan since 2004. Between 1988 and 1994, 2－MIB-producing cyanobacteria, like Phormidium tenue and Oscillatoria tenuis, were observed at the intake basin of Keage Water Purification Plant (KWPP), which draws water from the southern basin of Lake Biwa (SBLB). However, 2－MIB occurred in the intake basin of KWPP and SBLB surface water between 2007 and 2017 (except 2013 and 2014) in the absence of 2－MIB-producing cyanobacteria. On average, 92% of total 2－MIB was detected as dissolved between 2007 and 2017, but only 60% was found as dissolved between 1988 and 1994. It is believed that the bottom water of SBLB was more contaminated with 2－MIB than the surface water, and P. tenue was found in the submerged plants at the bottom of the lake. The culture strain of P. tenue PTG, isolated in SBLB, effectively produced dissolved 2－MIB (D－2－MIB) under the light with the same photon flux density at the bottom of the lake. In conclusion, the D－2－MIB that occurred in SBLB between 2007 and 2017 was attributed to P. tenue attached to the plants that sank at the bottom of the lake.</description><subject>2－Methylisoborneol</subject><subject>Bacteria</subject><subject>Dissolved chemicals</subject><subject>Drinking water</subject><subject>Freshwater</subject><subject>Lake Biwa</subject><subject>Odour</subject><subject>Oscillatoria tenuis</subject><subject>Phormidium tenue</subject><subject>Water quality</subject><issn>0910-6758</issn><issn>1881-0438</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNpFkE1OwzAQhS0EEqWw4gKWWKIU27FjZ4NE-ZdadQGsLSeZtCmpXeyE0kNwI-7EFUgpKqsnzXzzRu8hdErJgAlGL-Zh1WQDkQy43EM9qhSNCI_VPuqRlJIokUIdoqMQ5oSIJBWyhz4med56DzYHPIZ8ZmwVFtiV-KYKwdXvUOBxG5p1NCmcN7bBLBpDM1vXVXCZ8xZcjSuLmxngJ9d24i0emtCNOo-ReQU8rFYGF62v7BQzQuT31ycjVB6jg9LUAU7-tI9e7m6frx-i0eT-8fpqFOU0VTIqMpGAURSILOI4y2ROjGE8YWVBpGECuEi7LEaUaRJnLMkMUYpLrlSaQpHJuI_Otr5L795aCI2eu9bb7qVmXHDOeEd21PmWyr0LwUOpl75aGL_WlOhNtfq3Wi0SzTeel1t6HhozhR1rfFPlNfyz8fZgt-j69Rps_AP9VYSZ</recordid><startdate>2020</startdate><enddate>2020</enddate><creator>YOKOI, TAKAHIRO</creator><creator>NOGUCHI, AKIO</creator><creator>FURUTA, SEIKO</creator><creator>IKEDA, SYOHEI</creator><creator>ICHISE, SATOSHI</creator><creator>TAKEMOTO, KUNIKO</creator><creator>SEGAWA, TOSHIHARU</creator><creator>OGURA, AKIO</creator><general>Japanese Society of Water Treatment Biology</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H95</scope><scope>H96</scope><scope>H97</scope><scope>H98</scope><scope>H99</scope><scope>L.F</scope><scope>L.G</scope><scope>P64</scope></search><sort><creationdate>2020</creationdate><title>Occurrence Mechanism of Dissolved Musty-Odorant 2-Methylisoborneol in the Southern Basin of Lake Biwa during 2007－2017</title><author>YOKOI, TAKAHIRO ; NOGUCHI, AKIO ; FURUTA, SEIKO ; IKEDA, SYOHEI ; ICHISE, SATOSHI ; TAKEMOTO, KUNIKO ; SEGAWA, TOSHIHARU ; OGURA, AKIO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1987-db56ea81e07d33bb7c0aa2462fd07a25e459056a5f963b26ba0884748899edb73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>2020</creationdate><topic>2－Methylisoborneol</topic><topic>Bacteria</topic><topic>Dissolved chemicals</topic><topic>Drinking water</topic><topic>Freshwater</topic><topic>Lake Biwa</topic><topic>Odour</topic><topic>Oscillatoria tenuis</topic><topic>Phormidium tenue</topic><topic>Water quality</topic><toplevel>online_resources</toplevel><creatorcontrib>YOKOI, TAKAHIRO</creatorcontrib><creatorcontrib>NOGUCHI, AKIO</creatorcontrib><creatorcontrib>FURUTA, SEIKO</creatorcontrib><creatorcontrib>IKEDA, SYOHEI</creatorcontrib><creatorcontrib>ICHISE, SATOSHI</creatorcontrib><creatorcontrib>TAKEMOTO, KUNIKO</creatorcontrib><creatorcontrib>SEGAWA, TOSHIHARU</creatorcontrib><creatorcontrib>OGURA, AKIO</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Aquaculture Abstracts</collection><collection>ASFA: Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Japan biological society of water and waste</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>YOKOI, TAKAHIRO</au><au>NOGUCHI, AKIO</au><au>FURUTA, SEIKO</au><au>IKEDA, SYOHEI</au><au>ICHISE, SATOSHI</au><au>TAKEMOTO, KUNIKO</au><au>SEGAWA, TOSHIHARU</au><au>OGURA, AKIO</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Occurrence Mechanism of Dissolved Musty-Odorant 2-Methylisoborneol in the Southern Basin of Lake Biwa during 2007－2017</atitle><jtitle>Japan biological society of water and waste</jtitle><addtitle>Japanese J. Wat. Treat. Biol.</addtitle><date>2020</date><risdate>2020</risdate><volume>56</volume><issue>3</issue><spage>47</spage><epage>55</epage><pages>47-55</pages><issn>0910-6758</issn><eissn>1881-0438</eissn><abstract>Musty odor is an unavoidable problem for drinking water. 2－Methylisoborneol (2－MIB) is one of the major musty odorants that has been set as a quality standard for drinking water in Japan since 2004. Between 1988 and 1994, 2－MIB-producing cyanobacteria, like Phormidium tenue and Oscillatoria tenuis, were observed at the intake basin of Keage Water Purification Plant (KWPP), which draws water from the southern basin of Lake Biwa (SBLB). However, 2－MIB occurred in the intake basin of KWPP and SBLB surface water between 2007 and 2017 (except 2013 and 2014) in the absence of 2－MIB-producing cyanobacteria. On average, 92% of total 2－MIB was detected as dissolved between 2007 and 2017, but only 60% was found as dissolved between 1988 and 1994. It is believed that the bottom water of SBLB was more contaminated with 2－MIB than the surface water, and P. tenue was found in the submerged plants at the bottom of the lake. The culture strain of P. tenue PTG, isolated in SBLB, effectively produced dissolved 2－MIB (D－2－MIB) under the light with the same photon flux density at the bottom of the lake. In conclusion, the D－2－MIB that occurred in SBLB between 2007 and 2017 was attributed to P. tenue attached to the plants that sank at the bottom of the lake.</abstract><cop>Osaka</cop><pub>Japanese Society of Water Treatment Biology</pub><doi>10.2521/jswtb.56.47</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese |
| subjects | 2－Methylisoborneol Bacteria Dissolved chemicals Drinking water Freshwater Lake Biwa Odour Oscillatoria tenuis Phormidium tenue Water quality |
| title | Occurrence Mechanism of Dissolved Musty-Odorant 2-Methylisoborneol in the Southern Basin of Lake Biwa during 2007－2017 |
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