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Stoyneva, M., Traykov, I., Uzunov, B., Tosheva, A. and Zidarova, R. (2013) Final Report of Ecotan EOOD on the Monitoring of Bulgarian Lakes on the Basis of the WFD Biological Element “Phytoplankton” for the Period 2011-2013 for the Executive Agency of Environment at the Ministry of Environment and Waters of Bulgaria.

has been cited by the following article:

• TITLE: New Records of Microcystins in Some Bulgarian Water Bodies of Health and Conservational Importance

  AUTHORS: Vera Pavlova, Maya Stoyneva, Vesela Georgieva, Desislav Donchev, Lisa Spoof, Jussi Meriluoto, Zlatka Bratanova, Irina Karadjova

  KEYWORDS: Cyanobacteria, Cyanotoxins, Microcystins

  JOURNAL NAME: Journal of Water Resource and Protection, Vol.6 No.5, April 21, 2014

  ABSTRACT: Microcystins cause acute hepatotoxicity and chronic liver tumor promotion. This study presents the results of HPLC DAD analyses and their LC-MS confirmation of samples from five Bulgarian water bodies (reservoirs Stoudena, Pchelina, Bistritsa and lakes Dourankoulak, Vaya). The total concentration of microcystins in water samples ranged from 0.1 to 26.5 μg/l. The amount of microcystins in the biomasses ranged from 11.4 to 49.6 μg/g (d.w.). The high percent of positive samples in which the most toxic microcystin-LR is recorded, can serve as a strong alarm for the necessity of a serious study and relevant discussion of the problem with responsible authorities at national level.