scholarly journals Does the Kis-Balaton Water Protection System (KBWPS) Effectively Safeguard Lake Balaton from Toxic Cyanobacterial Blooms?

2021 ◽  
Vol 9 (5) ◽  
pp. 960
Author(s):  
Zoran Marinović ◽  
Nada Tokodi ◽  
Damjana Drobac Backović ◽  
Ilija Šćekić ◽  
Nevena Kitanović ◽  
...  
Keyword(s):  
Water Quality ◽  
Gill Tissue ◽  
Protection System ◽  
Cyanobacterial Blooms ◽  
Control Fish ◽  
Lake Balaton ◽  
Water Protection ◽  
Late 20Th Century ◽  
Cyanobacterial Biomass

Lake Balaton is the largest shallow lake in Central Europe. Its water quality is affected by its biggest inflow, the Zala River. During late 20th century, a wetland area named the Kis-Balaton Water Protection System (KBWPS) was constructed in the hopes that it would act as a filter zone and thus ameliorate the water quality of Lake Balaton. The aim of the present study was to test whether the KBWPS effectively safeguards Lake Balaton against toxic cyanobacterial blooms. During April, May, July and September 2018, severe cyanobacterial blooming was observed in the KBWPS with numbers reaching up to 13 million cells/mL at the peak of the bloom (July 2018). MC- and STX-coding genes were detected in the cyanobacterial biomass. Five out of nine tested microcystin congeners were detected at the peak of the bloom with the concentrations of MC-LR reaching 1.29 µg/L; however, accumulation of MCs was not detected in fish tissues. Histopathological analyses displayed severe hepatopancreas, kidney and gill alterations in fish obtained throughout the investigated period. In Lake Balaton, on the other hand, cyanobacterial numbers were much lower; more than 400-fold fewer cells/mL were detected during June 2018 and cyanotoxins were not detected in the water. Hepatic, kidney and gill tissue displayed few alterations and resembled the structure of control fish. We can conclude that the KBWPS acts as a significant buffering zone, thus protecting the water quality of Lake Balaton. However, as MC- and STX-coding genes in the cyanobacterial biomass were detected at both sites, regular monitoring of this valuable ecosystem for the presence of cyanobacteria and cyanotoxins is of paramount importance.

The role of the Kis-Balaton Water Protection System in the control of water quality of Lake Balaton

2000 ◽  
Vol 16 (1) ◽  
pp. 73-78 ◽  
Author(s):  
István Tátrai ◽  
Kálmán Mátyás ◽  
János Korponai ◽  
Gábor Paulovits ◽  
Piroska Pomogyi
Keyword(s):  
Water Quality ◽  
Protection System ◽  
Lake Balaton ◽  
Water Protection

Analysis of long-term water quality changes in the Kis-Balaton Water Protection System with time series-, cluster analysis and Wilks’ lambda distribution

2011 ◽  
Vol 37 (4) ◽  
pp. 629-635 ◽  
Author(s):  
István Gábor Hatvani ◽  
József Kovács ◽  
Ilona Székely Kovács ◽  
Pál Jakusch ◽  
János Korponai
Keyword(s):  
Water Quality ◽  
Time Series ◽  
Cluster Analysis ◽  
Protection System ◽  
Water Protection ◽  
Quality Changes ◽  
Wilks Lambda

scholarly journals Concept of contemporary methods for monitoring and determination of cyanide in water

2004 ◽  
Vol 58 (7-8) ◽  
pp. 338-342
Author(s):  
Dragana Cickaric ◽  
Ljubinka Rajakovic
Keyword(s):  
Quality Of Life ◽  
Water Quality ◽  
Toxic Substance ◽  
Water Protection ◽  
Rational Use ◽  
Modern Methods ◽  
Recent Developments ◽  
Water And Wastewater

The quality of life depends on water quality. Good water quality and the rational use of water are an absolute need of the new millennium. Although it is an ecological and health priority to prohibit the contamination of water and water protection, it is a responsibility for environmental engineers and chemists to develop and apply effective methods for monitoring and controlling of water quality, and at that way prevent ecological and technological catastrophe on time. In this paper modern methods and process for monitoring, control and detection of cyanide in water and wastewater are presented. Recent developments in instrumental techniques and treatment for determination of this toxic substance in water are described, particularly the methods according to green analytical aspects.

Lake Balaton: Water Quality of the Largest Shallow Lake in Central Europe

2019 ◽  
pp. 1-15
Author(s):  
Viktor Sebestyén ◽  
József Németh ◽  
Tatiana Juzsakova ◽  
Endre Domokos ◽  
Ákos Rédey
Keyword(s):  
Water Quality ◽  
Central Europe ◽  
Shallow Lake ◽  
Lake Balaton

Influence of alum on cyanobacterial blooms and water quality of earthen fish ponds

2015 ◽  
Vol 22 (21) ◽  
pp. 16502-16513 ◽  
Author(s):  
Aida Dawah ◽  
Ashraf Soliman ◽  
Abd El-Fatah Abomohra ◽  
Mohamed Battah ◽  
Doaa Anees
Keyword(s):  
Water Quality ◽  
Cyanobacterial Blooms ◽  
Fish Ponds

scholarly journals Evolution of water quality of Lake Balaton

Ecocycles ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 44-73
Author(s):  
Karoly Kutics
Keyword(s):  
Water Quality ◽  
Lake Balaton

Influence of chemical composition of snow and water protection zones of Uchinsky and Pestovo reservoir on water quality

2020 ◽  
pp. 13-15
Author(s):  
Sergey Suslov ◽  
Ludmila Gruzdeva ◽  
Vladimir Gruzdev ◽  
Marina Hrustaleva
Keyword(s):  
Water Quality ◽  
Chemical Composition ◽  
Catchment Area ◽  
Chemical Structure ◽  
Water Protection ◽  
Protection Zones ◽  
Sources Of Pollution ◽  
Quality Of Water ◽  
Protection Area

Ecological geochemical research of water protection areas was held in Moscow region. Precipitation (snow) is known to influence the formation of water chemical structure and determine geochemical effect. It shows the results of snow research in water protection area of Uchinsk and Pestovo reservoirs in order to find out the sources of pollution, to assess water quality and work out the recommendations to reduce and eliminate the sources of pollution. The article gives the evaluation of water quality depending on waterflow from the catchment area and various temporary flows. It shows the influence of excessive use of fertilizers on water quality (especially in spring) which leads to eutrophication processes and worsens the quality of water.

scholarly journals Conventional and contemporary methods for water treatment: From wastewater to ultra pure water

2003 ◽  
Vol 57 (7-8) ◽  
pp. 307-317 ◽  
Author(s):  
Vladana Rajakovic ◽  
Ljubinka Rajakovic
Keyword(s):  
Water Quality ◽  
Water Purification ◽  
High Efficiency ◽  
Membrane Separation ◽  
Pure Water ◽  
Water Protection ◽  
New Methods ◽  
Methods And Techniques ◽  
Controlling Processes

In this paper modern methods and techniques for water purification are described. Good water quality and the rational use of water are an absolute need of the new millennium. The quality of life depends on water quality. Although it is an ecological priority to prohibit the contamination of water, it is a responsibility for environmental engineers and chemists to develop and apply effective methods for water purification. Beside well-known methods and techniques, it is necessary to create new methods for water purification and treatment. Water recycling is especially important. Plants with membrane separation technologies enable savings in fresh water with high efficiency. Methods for monitoring and controlling processes and water protection should be developed simultaneously with the development of techniques for the methods for purification.

GEOECOLOGICAL STATE OF THE FLOODPLAIN AND CHANNEL COMPLEX OF THE POLTVA RIVER BASIN (VISTULA RIVER BASIN REGION)

2020 ◽  
pp. 64-70
Author(s):  
L. P. Kurhanevych ◽  
M. Z. Shipka
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Coastal Protection ◽  
Water Protection ◽  
River Channels ◽  
Protection Zones ◽  
Vistula River ◽  
Basin Region ◽  
Sewage Discharges

In accordance with the water management zoning of the territory of Ukraine, the Poltva river basin belongs to the Vistula river basin region. The evaluation methodology of the channel and floodplain river complex state was proposed by Himko R. V. (2005). According to this methodology, the parameters (23 indicators), characterizing river state by points scale (5 quality classes), were defined. The research included three steps. During the preparatory stage cartographic materials were investigated and the coastal protection zones were highlighted. The fieldwork stage included: visual assessment of water quality and of the state of channels; identification of sources of pollution and clogging of waters and coastal areas; study of features of anthropogenic load within floodplains. In the third stage, generalization and evaluation works were carried out. Wastewater discharges from enterprises and coastal settlements affect the water quality of the study area. Lviv has the greatest economic impact on the Poltva river due to its channelling within the city and due to large volumes of wastewater discharges (121.4 million m3 in 2017). The water quality of the Poltva River tributaries depends on sewage discharges from small industrial and public utilities, as well as on unauthorized sewage discharges in villages. Significant parts of the river channels are regulated. Drainage systems, that occupy much of the study area, as well as ponds and small reservoirs, directly affect on the hydrological regime of the rivers. The level of land-use of coastal territories is characterized by their urbanization level and their level of plowing. The urbanization of the upper reaches of the Poltva river valley is a determining factor that has influenced the sanitary status of its channel. Outside the Lviv city, many coastal areas (within the coastal protection zones) are plowed. Overgrowing of waters and obstruction of channels by water and coastal plant remains lead to a significant deterioration of sanitary conditions of the rivers, hence to secondary contamination of its waters. Geoecological state of the Poltva river channel and floodplain complex was designated as «unsatisfactory» (4th grade from 5 classes), of Yarychivka and Gologirka river complexes – as «satisfactory» (3rd grade), of other rivers – as «rather good» (2nd grade). The rivers of the Poltva watershed are under significant economic influence. To improve the geoecological state of river channels and floodplains, a complex of water protection measures is required: reduction of insufficiently treated wastewater discharges of Lviv city; cleaning of watercourses; monitoring of compliance with water protection rules etc.

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