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Application of passive sampling for sensitive time-integrative monitoring of cyanobacterial toxins microcystins in drinking water treatment plants
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SYSNO ASEP 0509980 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Application of passive sampling for sensitive time-integrative monitoring of cyanobacterial toxins microcystins in drinking water treatment plants Author(s) Jaša, Libor (BU-J)
Sadílek, Jan (BU-J)
Kohoutek, J. (CZ)
Straková, Lucie (BU-J)
Maršálek, Blahoslav (BU-J) ORCID, SAI
Babica, Pavel (BU-J) RID, ORCIDSource Title Water Research. - : Elsevier - ISSN 0043-1354
Roč. 153, APR 15 (2019), s. 108-120Number of pages 13 s. Language eng - English Country GB - United Kingdom Keywords drinking water treatment ; microcystins ; passive sampling Subject RIV DJ - Water Pollution ; Quality OECD category Environmental biotechnology Method of publishing Limited access Institutional support BU-J - RVO:67985939 UT WOS 000460718300011 EID SCOPUS 85060550023 DOI 10.1016/j.watres.2018.12.059 Annotation Calibrated adsorption-based passive samplers were used for time-integrative monitoring of microcystins (MCs) in three full-scale drinking water treatment plants (DWTPs) in the Czech Republic during two vegetation seasons (Jun-Nov), in parallel with traditional discrete sampling. MCs were detected in epilimnetic water samples at concentrations up to 14 mu g/L, but their levels in raw water in DWTPs were below 1 mu g/L WHO guideline value for drinking water. Conventional treatment technologies (coagulation/filtration) eliminated cyanobacteria and intracellular toxins but had a limited removal efficiency for extracellular toxins. MCs were regularly detected in final treated water, especially in DWTPs equipped only with the conventional treatment, but their concentrations were below the quantitation limit of discrete sampling (<25 ng/L). Passive samplers in combination with LC-MS/MS analysis provided excellent sensitivity allowing to detect time-weighted average (TWA) concentrations of MCs as low as 20-200 pg/L after 14-d deployment. Median MC TWA concentrations in the treated water from the individual DWTP5 were 1-12 ng/L, and most likely did not present significant health risks. Passive samplers well reflected spatiotemporal variations of MCs, actual concentrations of extracellular toxins, MC removal efficiency in DWTP5, and toxin concentrations in the treated water. Passive sampling can be effectively used for assessment and management of MC health risks during DWTP operation. Workplace Institute of Botany Contact Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Year of Publishing 2020 Electronic address http://hdl.handle.net/11104/0301884
Number of the records: 1