Toxicity of organic matter originated from Microcystis aeruginosa

0523707 - MBÚ 2020 RIV IE eng A - Abstrakt
Šilhavecká, Simona - Cajthaml, Tomáš - Načeradská, Jana - Pivokonský, Martin
Toxicity of organic matter originated from Microcystis aeruginosa.
Toxicology Letters. Elsevier. Roč. 314, S (2019), s. 111-111. ISSN 0378-4274. E-ISSN 1879-3169.
[55th Congress of the European-Societies-of-Toxicology (EUROTOX) - Toxicology - Science Providing Solutions. 08.09.2019-11.09.2019, Helsinky]
Grant CEP: GA ČR(CZ) GA18-14445S
Institucionální podpora: RVO:61388971 ; RVO:67985874
Klíčová slova: Microcystis aeruginosa * cyanobacterial toxins * organic carbon
Obor OECD: Environmental sciences (social aspects to be 5.7); Environmental sciences (social aspects to be 5.7) (UH-J)

Nowadays, the eutrophication of surface water results in a massive increase in algal and cyanobacterial growth associated with the occurrence of water blooms. Due to the decomposition of the biomass,
the concentrations of algal organic matter (AOM) including cyanobacterial toxins also increase in water reservoirs which are frequently used as a source of drinking water. The main problem arises during
the drinking water treatment processes because the majority of dissolved organic compounds serve as precursors for the formation of potentially toxic disinfection by-products (DBPs) in drinking water.
The mentioned compounds (e.g. cyanotoxins, DBPs) are currently considered to be a threat to drinking water quality due to their adverse effect on human health. detection (LC-MS/MS) has been developed and optimized for the determination of selected types of cyanobacterial toxins such as microcystins (MCs), anatoxin, cylindrospermopsin, nodularin. The fully optimized method has been used for the detection of cyanotoxins in a sample containing dissolved organic carbon (DOC) of cyanobacterium Microcystis aeruginosa. Cyanotoxins detected in the sample were: anatoxin (0.02 μg/mg of DOC), MC-RR (0.78 μg/mg of DOC), MC-YR (0.22 μg/mg of DOC), MC-LR (0.74 μg/mg of DOC), MC-LY (0.02
μg/mg of DOC) MC-LW (0.69 μg/mg of DOC) and MC-LF (0.02 μg/mg
of DOC).
Trvalý link: http://hdl.handle.net/11104/0308021