Genotoxicity of disinfection by-products (DBPs) upon chlorination of nine different freshwater algal species at variable reaction time

Research Article| October 15 2013 Genotoxicity of disinfection by-products (DBPs) upon chlorination of nine different freshwater algal species at variable reaction time Y. L. Zhang; Y. L. Zhang 1Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China2Department of Environmental Pollution and Process Control, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, China; Center for Food Safety and Environmental Technology, Guangzhou Institute of Advanced Technology, Chinese Academy of Sciences, Guangzhou 511458, China; and Department of Biology, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China Search for other works by this author on: This Site PubMed Google Scholar B. P. Han; B. P. Han 1Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China3Institute of Hydrobiology Jinan University, Guangzhou 510632, China Search for other works by this author on: This Site PubMed Google Scholar B. Yan; B. Yan 1Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China Search for other works by this author on: This Site PubMed Google Scholar Q. M. Zhou; Q. M. Zhou 1Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China4Department of Geography, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China Search for other works by this author on: This Site PubMed Google Scholar Y. Liang Y. Liang 1Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China2Department of Environmental Pollution and Process Control, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, China; Center for Food Safety and Environmental Technology, Guangzhou Institute of Advanced Technology, Chinese Academy of Sciences, Guangzhou 511458, China; and Department of Biology, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China E-mail: yliang@hkbu.edu.hk Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2014) 63 (1): 12–20. https://doi.org/10.2166/aqua.2013.107 Article history Received: June 03 2013 Accepted: August 22 2013 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 Y. L. Zhang, B. P. Han, B. Yan, Q. M. Zhou, Y. Liang; Genotoxicity of disinfection by-products (DBPs) upon chlorination of nine different freshwater algal species at variable reaction time. Journal of Water Supply: Research and Technology-Aqua 1 February 2014; 63 (1): 12–20. doi: https://doi.org/10.2166/aqua.2013.107 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Nine local dominant freshwater algal species, including green algae (Chlorella sp., Chlamydomonas sp. and Scenedesmus quadricauda), diatom (Navicula pelliculosa, Nitzschia palea Grunow and Synedra sp.), blue-green algae (Microcystis sp., Chroococcus sp. and Gloeocapsa sp.) were isolated from source water reservoirs and cultivated in the laboratory. The algal biomass was chlorinated (20 °C, pH 7, residual chlorine 2 mg L−1). Yields of chloroform, dichloroacetic acid, trichloroacetic acid, dichloroacetonitrile and trichloroacetonitrile and genotoxicity of the chlorinated solutions at eight chlorination intervals (0.5, 1, 2, 5, 10, 30, 60 and 120 min) were determined via SOS-ChromoTest and Comet assay. The results showed that green algae and diatom were more effective disinfection by-products (DBPs) precursors than blue-green algae. Genotoxicity was shown to be chlorination time-dependent, in agreement with our previous findings, suggesting that intermediate DBPs rather than trihalomethanes or haloacetic acids were major contributors to the genotoxicity of chlorinated solutions. algal species, Caco-2 cells, chlorination time, Comet assay, genotoxicity, SOS-ChromoTest This content is only available as a PDF. © IWA Publishing 2014 You do not currently have access to this content.