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[SITUATION] · [ACTIVE]
2 clusters · 3 sources · 21 days · First seen · Last updated
Categories: HEALTH
Cyanobacteria risk in European lakes
Entities: Keszthely · Balaton Limnological Research Institute · Planktothrix · Lake Balaton · Aphanizomenon
Overview
In early July, German authorities warned that cyanobacteria and harmful bacteria were increasing in lakes and coastal waters, urging heightened monitoring across the region. By the end of the month, Hungarian scientists reported that although algal biomass in Lake Balaton had risen, chlorophyll‑a concentrations stayed below the World Health Organization’s health limit, and cyanobacterial species, though more prevalent, were not yet at levels posing a health threat. A temporary swimming ban was imposed at one beach due to elevated bacterial counts, while other sites remained within safety standards. Both updates highlight ongoing surveillance of microbial water quality in European lakes.
Timeline
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6 days ago
[HEALTH] 3 sourcesLake Balaton algae concentrations stay below safety thresholdLake Balaton’s algal biomass has risen but chlorophyll‑a stays under WHO limits; cyanobacteria are more common but not hazardous. A temporary swim ban at Keszthely’s Helikon beach follows high bacterial counts.
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26 days ago
[HEALTH] 7 sourcesGermany warns of cyanobacteria and harmful bacteria in lakes and coastsGerman health agencies warn of toxic cyanobacteria in Lake Constance, jellyfish and Vibrio bacteria in the North Sea, and cyanobacteria plus Zerkarien larvae in Mecklenburg lakes, urging swimmers to avoid risky
Sources
agrarszektor.hu · kuruc.info · rgi.ie