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3. Incorporating taste and odour problems in water safety plans.

Author

Kozisek, Frantisek, Chorus, Ingrid, Testai, Emanuela, Kaloudis, Triantafyllos, Akcaalan, Reyhan, Albay, Meriç, Steinhaus, Martin, Bosnjak, Magdalena Ujevic, Dunkel, Andreas, Hiskia, Anastasia, Manganelli, Maura, Scardala, Simona, Spiteri, David, and Triantis, Theodoros

Subjects
*AQUATIC sports safety measures, *CUSTOMER satisfaction, *WATER utilities, *WATER quality, *REPUTATION
Abstract

Many water utilities are at least occasionally affected by unpleasant taste and odour (T&O) in drinking water. For decades, aesthetic water quality has been of secondary concern to water producers, with water safety being the primary focus. However, there has been a recent shift towards prioritising consumer satisfaction, encompassing not only services, but also water quality, including T&O issues, which can negatively impact the supplier’s reputation. Starting to address a T&O problem until consumers’ complaints become massive is too late and puts water producers under great stress to take effective action in a timely manner. Rather, a preventive approach is necessary. The most effective approach is to include T&O as a hazard to assess and manage in the context of developing a water safety plan (WSP) for the supply system. The development of a WSP provides an excellent platform for including the stakeholders needed to control the source of T&O events, as this often requires multistakeholder cooperation. Our review provides a comprehensive guide to addressing T&O occurrences and shows how this can be included in the framework of WSP development. It identifies supporting tools and illustrates the information given with a number of examples from water suppliers’ practice. [ABSTRACT FROM AUTHOR]

Published
2024
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4. Sustainable lake restoration: From challenges to solutions

Author

Tammeorg, Olga, Chorus, Ingrid, Spears, Bryan, Nõges, Peeter, Nürnberg, Gertrud K., Tammeorg, Priit, Søndergaard, Martin, Jeppesen, Erik, Paerl, Hans, Huser, Brian, Horppila, Jukka, Jilbert, Tom, Budzyńska, Agnieszka, Dondajewska‐Pielka, Renata, Gołdyn, Ryszard, Haasler, Sina, Hellsten, Seppo, Härkönen, Laura H., Kiani, Mina, Kozak, Anna, Kotamäki, Niina, Kowalczewska‐Madura, Katarzyna, Newell, Silvia, Nurminen, Leena, Nõges, Tiina, Reitzel, Kasper, Rosińska, Joanna, Ruuhijärvi, Jukka, Silvonen, Soila, Skov, Christian, Važić, Tamara, Ventelä, Anne‐Mari, Waajen, Guido, Lürling, Miquel, Tammeorg, Olga, Chorus, Ingrid, Spears, Bryan, Nõges, Peeter, Nürnberg, Gertrud K., Tammeorg, Priit, Søndergaard, Martin, Jeppesen, Erik, Paerl, Hans, Huser, Brian, Horppila, Jukka, Jilbert, Tom, Budzyńska, Agnieszka, Dondajewska‐Pielka, Renata, Gołdyn, Ryszard, Haasler, Sina, Hellsten, Seppo, Härkönen, Laura H., Kiani, Mina, Kozak, Anna, Kotamäki, Niina, Kowalczewska‐Madura, Katarzyna, Newell, Silvia, Nurminen, Leena, Nõges, Tiina, Reitzel, Kasper, Rosińska, Joanna, Ruuhijärvi, Jukka, Silvonen, Soila, Skov, Christian, Važić, Tamara, Ventelä, Anne‐Mari, Waajen, Guido, and Lürling, Miquel

Abstract

Sustainable management of lakes requires us to overcome ecological, economic, and social challenges. These challenges can be addressed by focusing on achieving ecological improvement within a multifaceted, co‐beneficial context. In‐lake restoration measures may promote more rapid ecosystem responses than is feasible with catchment measures alone, even if multiple interventions are needed. In particular, we identify restoration methods that support the overarching societal target of a circular economy through the use of nutrients, sediments, or biomass that are removed from a lake, in agriculture, as food, or for biogas production. In this emerging field of sustainable restoration techniques, we show examples, discuss benefits and pitfalls, and flag areas for further research and development. Each lake should be assessed individually to ensure that restoration approaches will effectively address lake‐specific problems, do not harm the target lake or downstream ecosystems, are cost‐effective, promote delivery of valuable ecosystem services, minimize conflicts in public interests, and eliminate the necessity for repeated interventions. Achieving optimal, sustainable results from lake restoration relies on multidisciplinary research and close interactions between environmental, social, political, and economic sectors.

Published
2024

17. Sustainable lake restoration: From challenges to solutions

Author

Tammeorg, Olga, primary, Chorus, Ingrid, additional, Spears, Bryan, additional, Nõges, Peeter, additional, Nürnberg, Gertrud K., additional, Tammeorg, Priit, additional, Søndergaard, Martin, additional, Jeppesen, Erik, additional, Paerl, Hans, additional, Huser, Brian, additional, Horppila, Jukka, additional, Jilbert, Tom, additional, Budzyńska, Agnieszka, additional, Dondajewska‐Pielka, Renata, additional, Gołdyn, Ryszard, additional, Haasler, Sina, additional, Hellsten, Seppo, additional, Härkönen, Laura H., additional, Kiani, Mina, additional, Kozak, Anna, additional, Kotamäki, Niina, additional, Kowalczewska‐Madura, Katarzyna, additional, Newell, Silvia, additional, Nurminen, Leena, additional, Nõges, Tiina, additional, Reitzel, Kasper, additional, Rosińska, Joanna, additional, Ruuhijärvi, Jukka, additional, Silvonen, Soila, additional, Skov, Christian, additional, Važić, Tamara, additional, Ventelä, Anne‐Mari, additional, Waajen, Guido, additional, and Lürling, Miquel, additional

Published
2023
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33. Comment on “Models predict planned phosphorus load reduction will make Lake Erie more toxic”

Author

Huisman, Jef, Dittmann, Elke, Fastner, Jutta, Schuurmans, J. Merijn, Scott, J. Thad, Van de Waal, Dedmer B., Visser, Petra M., Welker, Martin, Chorus, Ingrid, Huisman, Jef, Dittmann, Elke, Fastner, Jutta, Schuurmans, J. Merijn, Scott, J. Thad, Van de Waal, Dedmer B., Visser, Petra M., Welker, Martin, and Chorus, Ingrid

Abstract

Hellweger et al. (Reports, 27 May 2022, pp. 1001) predict that phosphorus limitation will increase concentrations of cyanobacterial toxins in lakes. However, several molecular, physiological, and ecological mechanisms assumed in their models are poorly supported or contradicted by other studies. We conclude that their take-home message that phosphorus load reduction will make Lake Erie more toxic is seriously flawed.

Published
2022

36. Toxic Cyanobacteria in Water

Author

Chorus, Ingrid and Welker, Martin

Subjects
drinking water, environmental microbiology, exposure pathways, limnology, phytoplankton, recreational water, swimming pool hygiene, toxins, water quality, water resource monitoring, bic Book Industry Communication::T Technology, engineering, agriculture::TQ Environmental science, engineering & technology
Abstract

"Cyanobacterial toxins are among the hazardous substances most widely found in water. They occur naturally, but concentrations hazardous to human health are usually due to human activity. Therefore, to protect human health, managing lakes, reservoirs and rivers to prevent cyanobacterial blooms is critical. This second edition of Toxic Cyanobacteria in Water presents the current state of knowledge on the occurrence of cyanobacteria and cyanotoxins as well as their impacts on health through water-related exposure pathways, chiefly drinking-water and recreational activity. It provides scientific and technical background information to support hazard identification, assessment and prioritisation of the risks posed by cyanotoxins, and it outlines approaches for their management at each step of the water-use system. It sets out key practical considerations for developing management strategies, implementing efficient measures and designing monitoring programmes. This enables stakeholders to evaluate whether there is a health risk from toxic cyanobacteria and to mitigate it with appropriate measures. This book is intended for those working on toxic cyanobacteria with a specific focus on public health protection. It intends to empower professionals from different disciplines to communicate and cooperate for sustainable management of toxic cyanobacteria, including public health workers, ecologists, academics, and catchment and waterbody managers. Ingrid Chorus headed the department for Drinking-Water and Swimming-Pool Hygiene at the German Environment Agency. Martin Welker is a limnologist and microbiologist, currently with bioMérieux in Lyon, France."

Published
2021
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47. Fatal Neurotoxicosis in Dogs Associated with Tychoplanktic, Anatoxin-a Producing Tychonema sp. in Mesotrophic Lake Tegel, Berlin

Author

Tegel, Lake, Fastner, Jutta, Beulker, Camilla, Geiser, Britta, Hoffmann, Anja, Kröger, Roswitha, Teske, Kinga, Hoppe, Judith, Mundhenk, Lars, Neurath, Hartmud, Sagebiel, Daniel, and Chorus, Ingrid

Subjects
0106 biological sciences, Cyanobacteria, Fontinalis antipyretica, Veterinary medicine, Health, Toxicology and Mutagenesis, ved/biology.organism_classification_rank.species, Population, neurotoxicosis, lcsh:Medicine, 010501 environmental sciences, Toxicology, 01 natural sciences, cyanobacteria, Article, Anatoxin-a, chemistry.chemical_compound, Dogs, Fatal Outcome, cyanotoxins, Animals, Water Pollutants, anatoxin-a, Trophic state index, education, 0105 earth and related environmental sciences, education.field_of_study, Tychonema, biology, Cyanobacteria Toxins, ved/biology, 010604 marine biology & hydrobiology, lcsh:R, biology.organism_classification, Moss, Macrophyte, macrophytes, Berlin, Lakes, Fontinalis, chemistry, Female, Neurotoxicity Syndromes, Tropanes
Abstract

In May 2017, at least 12 dogs showed signs of acute neurotoxicosis after swimming in or drinking from Lake Tegel, a mesotrophic lake in Berlin, Germany, and several of the affected dogs died shortly afterwards despite intensive veterinary treatment. Cyanobacterial blooms were not visible at the water surface or the shorelines. However, detached and floating water moss (Fontinalis antipyretica) with high amounts of Tychonema sp., a potential anatoxin-a (ATX) producing cyanobacterium, was found near the beaches where the dogs had been swimming and playing. Necropsies of two of the dogs revealed no specific lesions beside the anamnestic neurotoxicosis. ATX was detected in concentrations up to 8700 µg L−1 in the stomach contents, while other (neuro)toxic substances were not found. In the aqueous fraction of Fontinalis/Tychonema clumps sampled after the casualties, ATX was found in concentrations up to 1870 µg L−1. This is the first report of a dense population of Tychonema sp. in stands of Fontinalis resulting in high ATX contents. This case emphasizes the need for further investigation of potentially toxic, non-bloom forming cyanobacteria in less eutrophic water bodies and underlines the novel challenge of developing appropriate surveillance schemes for respective bathing sites.

Published
2018

49. The abundance of microcystin-producing genotypes correlates positively with colony size in Microcystis sp. and determines its microcystin net production in Lake Wannsee

Author

Kurmayer, Rainer, Christiansen, Guntram, and Chorus, Ingrid

Subjects
Cyanobacteria -- Research, Peptides -- Physiological aspects, Genotype -- Composition, Natural products, Lake ecology -- Research, Biological sciences
Abstract

Results show a correlation between the colony size and microcystin net production in the Microcystis sp. Data suggest that the genotype composition and the abundance of larger than 100 micrometer colony size determine the net production of microcystin in Lake Wannsee in Berlin, Germany.

Published
2003

50. Combating cyanobacterial proliferation by avoiding or treating inflows with high P load—experiences from eight case studies

Author

Fastner, Jutta, primary, Abella, Sally, additional, Litt, Arni, additional, Morabito, Giuseppe, additional, Vörös, Lajos, additional, Pálffy, Károly, additional, Straile, Dietmar, additional, Kümmerlin, Reiner, additional, Matthews, David, additional, Phillips, M. Geoff, additional, and Chorus, Ingrid, additional

Published
2015
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