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学科主题: Environmental Sciences
题名: A systematic study on spatial and seasonal patterns of eight taste and odor compounds with relation to various biotic and abiotic parameters in Gonghu Bay of Lake Taihu, China
作者: Chen, Jun1; Xie, Ping1; Ma, Zhimei1; Niu, Yuan1; Tao, Min1; Deng, Xuwei1; Wang, Qing1
通讯作者: Xie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Donghu S Rd 7, Wuhan 430072, Peoples R China ; xieping@ihb.ac.cn
关键词: Taste and odor compounds ; Purge-and-trap ; GC-MS ; Cyanobacterial blooms ; Lake Taihu
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
发表日期: 2010-12-15
DOI: 10.1016/j.scitotenv.2010.10.010
卷: 409, 期:2, 页:314-325
收录类别: SCI
文章类型: Article
部门归属: [Chen, Jun; Xie, Ping; Ma, Zhimei; Niu, Yuan; Tao, Min; Deng, Xuwei; Wang, Qing] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: Chinese Academy of Sciences [KZCX1-YW-14-6-1]; National Basic Research Program of China [2008CB418101]
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
摘要: A systematic study was conducted on seasonal and spatial patterns of taste and odor (T&O) compounds with relation to biotic and abiotic parameters at fifteen sites in Gonghu Bay of Lake Taihu in 2008. We developed a sensitive and automated method to simultaneously analyze eight T&O compounds (boiling points ranging from 38 degrees C to 239 degrees C) by using Purge-and-Trap (P&T) coupled with GC/MS. Maximum particulate dimethyl trisulfide (DMTS, 69.6 ng/L) exceeded its odor threshold concentrations (OTC, 10 ng/L) and maximum dissolved DMTS was 6.1 ng/L, but still far below concentration in the drinking water pollution incident of Wuxi City in 2007 when DMTS reached 1768-11,399 ng/L Geosmin (CEO), 2-methylisoborneol (MIB), beta-cyclocitral, beta-ionone and 2-isobutyl-3-methoxypyrazine (IBMP) occasionally or frequently exceeded their OTCs, whereas 2-isopropyl-3-methoxypyrazine (IPMP) and dimethyl sulfide (DMS) did not. We found for the first time significant correlations between particulate beta-cyclocitral and beta-ionon concentrations and intracellular and extracellular microcystin concentrations. Spatially, Nanquan Waterworks faced more risk by T&O contamination than Xidong Waterworks. High concentrations of NO3-N, TDN and TN could be risky signs of taste and odor events by DMS, DMTS, IPMP, IBMP and GEO. (C) 2010 Elsevier B.V. All rights reserved.
英文摘要: A systematic study was conducted on seasonal and spatial patterns of taste and odor (T&O) compounds with relation to biotic and abiotic parameters at fifteen sites in Gonghu Bay of Lake Taihu in 2008. We developed a sensitive and automated method to simultaneously analyze eight T&O compounds (boiling points ranging from 38 degrees C to 239 degrees C) by using Purge-and-Trap (P&T) coupled with GC/MS. Maximum particulate dimethyl trisulfide (DMTS, 69.6 ng/L) exceeded its odor threshold concentrations (OTC, 10 ng/L) and maximum dissolved DMTS was 6.1 ng/L, but still far below concentration in the drinking water pollution incident of Wuxi City in 2007 when DMTS reached 1768-11,399 ng/L Geosmin (CEO), 2-methylisoborneol (MIB), beta-cyclocitral, beta-ionone and 2-isobutyl-3-methoxypyrazine (IBMP) occasionally or frequently exceeded their OTCs, whereas 2-isopropyl-3-methoxypyrazine (IPMP) and dimethyl sulfide (DMS) did not. We found for the first time significant correlations between particulate beta-cyclocitral and beta-ionon concentrations and intracellular and extracellular microcystin concentrations. Spatially, Nanquan Waterworks faced more risk by T&O contamination than Xidong Waterworks. High concentrations of NO3-N, TDN and TN could be risky signs of taste and odor events by DMS, DMTS, IPMP, IBMP and GEO. (C) 2010 Elsevier B.V. All rights reserved.
关键词[WOS]: FRESH-WATER ; CYANOBACTERIAL TOXINS ; MUSTY ODOR ; IN-SOURCE ; DYNAMICS ; MICROCYSTINS ; GEOSMIN ; 2-METHYLISOBORNEOL ; IDENTIFICATION ; PRODUCTS
语种: 英语
WOS记录号: WOS:000286294300010
ISSN号: 0048-9697
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/15476
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China

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Chen, Jun; Xie, Ping; Ma, Zhimei; Niu, Yuan; Tao, Min; Deng, Xuwei; Wang, Qing.A systematic study on spatial and seasonal patterns of eight taste and odor compounds with relation to various biotic and abiotic parameters in Gonghu Bay of Lake Taihu, China,SCIENCE OF THE TOTAL ENVIRONMENT,2010,409(2):314-325
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