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Annual dynamics and origins of the odorous compounds in the pilot experimental area of Lake Dianchi, China
Li, L.; Wan, N.; Gan, N.; Xia, B. D.; Song, L. R.; Li, L, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 4300072, Peoples R China
2007
Conference Name7th International Symposium on Off-Flavours in the Aquatic Environment
Source PublicationWATER SCIENCE AND TECHNOLOGY
Pages43-50
Conference DateOCT 02-07, 2005
Conference PlaceCornwall, CANADA
DepartmentChinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 4300072, Peoples R China
AbstractLake Dianchi is the sixth largest freshwater lake in China. The pilot experimental area (6 km(2)) in Lake Dianchi is one of the most severely polluted areas in the lake with heavy cyanobacteria blooms. During June 2002 to May 2003, the algal composition and number, and odorous compounds were identified monthly and monitored in the area. Meanwhile, physicochemical parameters such as total phosphorus (TP), total nitrogen (TN), 5-day biochemical oxygen demand (BOD5), chemical oxygen demand (CODMn), dissolved oxygen (DO), pH, transparency, temperature and chlorophyll a (chla) were determined. Four odorous compounds: 2-methylisoborneol (MIB), geosmin, beta-cyclocitral and beta-ionone were found in the lake water. Both the concentration of particulate beta-cyclocitral and that of beta-ionone correlated significantly with the annual variation of Chla, biomass of total phytoplankton, cyanobacteria and Microcystis. The concentration of particulate MIB correlated significantly with the biomass of Oscillatoria, while the concentration of particulate geosmin correlated significantly with the biomass of Anabaena. Off-flavour in the pilot area was found to be caused by a combination of beta-cyclocitral- and beta-ionone-producing Microcystis, MIB-producing Oscillatoria and geosmin-producing Anabaena. beta-ionone, MIB and geosmin contributed collectively to the odour intensity in the lake water.
KeywordCyanobacteria Beta-cyclocitral Geosmin Beta-ionone 2-methylisoborneol Off-flavour
Funding OrganizationSt Lawrence River Inst Environm Sci, IWA, Suez Environm, Amer Water Works Assoc Res Fdn, Natl Water Res Inst, Ontario Water Works Res Consortium, Canadian Assoc Water Qual
Indexed BySCI
Language英语
WOS IDWOS:000246543400007
Citation statistics
Document Type会议论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/11759
Collection会议论文
Corresponding AuthorLi, L, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 4300072, Peoples R China
Recommended Citation
GB/T 7714
Li, L.,Wan, N.,Gan, N.,et al. Annual dynamics and origins of the odorous compounds in the pilot experimental area of Lake Dianchi, China[C],2007:43-50.
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