Annual dynamics and origins of the odorous compounds in the pilot experimental area of Lake Dianchi, China

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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.
	2007
会议名称	7th International Symposium on Off-Flavours in the Aquatic Environment
会议日期	OCT 02-07, 2005
会议地点	Cornwall, CANADA
关键词	cyanobacteria beta-cyclocitral geosmin beta-ionone 2-methylisoborneol off-flavour
页码	43-50
通讯作者	Li, L, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 4300072, Peoples R China
中文摘要	Lake 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.
收录类别	SCI
会议主办者	St 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
会议录	WATER SCIENCE AND TECHNOLOGY
语种	英语
WOS记录号	WOS:000246543400007
内容类型	会议论文
源URL	[http://ir.ihb.ac.cn/handle/342005/11759]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_会议论文
推荐引用方式 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]. 见:7th International Symposium on Off-Flavours in the Aquatic Environment. Cornwall, CANADA. OCT 02-07, 2005.