Occurrence of algae and algae-related taste and odour (T&O) compounds in the Qingcaosha Reservoir, China

Research Article| April 25 2015 Occurrence of algae and algae-related taste and odour (T&O) compounds in the Qingcaosha Reservoir, China Kejia Zhang; Kejia Zhang 1College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, Zhejiang 310058, China Search for other works by this author on: This Site PubMed Google Scholar Tuqiao Zhang; Tuqiao Zhang 1College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, Zhejiang 310058, China Search for other works by this author on: This Site PubMed Google Scholar Yang Deng; Yang Deng 2Department of Earth and Environmental Studies, Montclair State University, Montclair, NJ 07043, USA Search for other works by this author on: This Site PubMed Google Scholar Naiyun Gao; Naiyun Gao 3State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China Search for other works by this author on: This Site PubMed Google Scholar Yulong Yang Yulong Yang 1College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, Zhejiang 310058, China E-mail: ranch2006@126.com Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2015) 64 (7): 824–831. https://doi.org/10.2166/aqua.2015.072 Article history Received: March 15 2014 Accepted: March 09 2015 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Kejia Zhang, Tuqiao Zhang, Yang Deng, Naiyun Gao, Yulong Yang; Occurrence of algae and algae-related taste and odour (T&O) compounds in the Qingcaosha Reservoir, China. Journal of Water Supply: Research and Technology-Aqua 11 November 2015; 64 (7): 824–831. doi: https://doi.org/10.2166/aqua.2015.072 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex This study examined the temporal and spatial variations in the occurrence of major algae and algae-related taste and odour (T&O) compounds in Qingcaosha Reservoir, China. Water samples were collected monthly from seven sites in the reservoir and analysed using solid phase microextraction combined with gas chromatography-mass spectrometry. Results showed that green algae were dominant over the 9-month study. In addition, cyanobacteria in the summer and early autumn peaked at 3.2 ∼ 9.6 × 106 cell/L. Among the four most common algae-related T&O compounds, dimethyl trisulphide was undetectable at any of the sampling sites, and 2-methylisoborneol (2-MIB), geosmin and β-cyclocitral were frequently over their respective odour threshold levels from August through October. β-cyclocitral concentration was linearly correlated with the concentration of cyanobacteria (R2 = 0.9831). The peak β-cyclocitral concentrations varied from 452 to 1,293 ng/L and were observed close to the water table. In contrast, high concentrations of 2-MIB and geosmin occurred in the water overlying sediments, probably because some of the 2-MIB and geosmin came from the micro-organisms in the sediments. These results provide important information regarding algae and algae-related T&O compounds in a typical reservoir in estuary and coastal areas, and will be helpful for developing appropriate strategies to minimize undesirable T&O issues in water sources. algae, reservoir water, solid phase micro extraction, taste and odour © IWA Publishing 2015 You do not currently have access to this content.