Microcistina en plantas de tratamiento de agua para consumo humano en un ambiente tropical: el Área Metropolitana de Costa Rica

López, Adrián Avendaño; Villa, Carolina Arguedas

doi:10.15517/rbt.v54i3.12557

Cited by 2 publications

(2 citation statements)

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“…En Costa Rica sobresale una publicación sobre microcistinas en plantas de tratamiento de agua para consumo humano del área metropolitana (Avendaño & Arguedas, 2006), los autores argumentan que en la época de lluvias encontraron valores por debajo de los límites de la OMS (1 mg/litro, Gupta, 1998) y en la época de secas excedieron dichos valores.…”

Section: Referencias Para América Latinaunclassified

Cyanotoxins: environmental and health effects. Prevention measures

2017

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RESUMENAntecedentes. Ante los eventos de florecimientos de cianobacterias cada vez más frecuentes a nivel global, cuyos efectos son tóxicos y negativos para la salud humana, las mascotas, los animales del campo, la vida acuática y silvestre, es indispensable hacer pública la información más relevante respecto a este tema, ya que estos eventos tendrán cada vez más una mayor incidencia y frecuencia en un contexto de calentamiento global. Objetivos. Entre los objetivos principales de esta investigación destacan exhibir los impactos ambientales que causan las cianotoxinas, así como sus causas, y reconocer la falta de conocimiento sobre éstas, lo que ha impedido emprender medidas que disminuyan sus efectos negativos. Métodos. Se llevó a cabo una revisión de diversos estudios abarcando aspectos históricos e incorporando los primeros estudios hasta el contexto actual, con el fin de mostrar una breve descripción de las cianotoxinas más importantes y frecuentes en las aguas continentales. Resultados. Fue posible evidenciar los principales daños que causan en vertebrados y las consecuencias que provocan en los ecosistemas acuáticos, así como los niveles de referencia para evitar intoxicaciones por ingestión o contacto; también averiguar los métodos que se emplearon para su detección. Conclusiones. Es necesario hacer hincapié en la urgencia de atender integralmente los florecimientos algales y su monitoreo sistemático.Palabras clave: Ambientes de agua dulce, cianotoxinas, hepatotoxinas, monitoreo, neurotoxinas, prevención. ABSTRACTBackground. Before the events of cyanobacteria toxic blooms are widespread and are increasing in frequency globally, with negative effects on human health, pets, cattle, and wildlife, we integrated the information on the subject for general knowledge, as these events will increasingly have a greater incidence and frequency in a context of global warming. Goals. To reveal the environmental impacts of cyanotoxins, their causes, and acknowledge the need for knowledge about them in order to implement measures that will reduce their negative effects. Methods. We present a review of several studies encompassing historical aspects and incorporating the first studies into the current context, in order to enumerate the most frequent cyanotoxins in inland water. Results. We discuss the symptoms that cyanotoxins cause in vertebrates, as well as reference levels to avoid intoxication by ingestion or contact; the methods used for detection, and the effects on aquatic ecosystems. Conclusions. We draw attention to the need for integral management of algal blooms and systematic monitoring.

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Section: Referencias Para América Latinaunclassified

Cyanotoxins: environmental and health effects. Prevention measures

2017

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“…In Latin America (i.e., México to Argentina) the presence of cyanobacterial blooms and cyanotoxins in water bodies have been reported in several countries through field research and review papers, including: Argentina, Brazil, Chile, Costa Rica, Colombia, Cuba, Ecuador, Guatemala México, Perú, Uruguay, Venezuela (Avendaño Lopez & Arguedas Villa 2006, Dörr et al, 2010, Vasconcelos et al, 2010, Gomez et al, 2012, Mowe et al, 2015, Pérez-Morales et al, 2016, Rico-Martínez et al, 2017, Moura et al, 2018, León & Peñuela 2019, Munoz et al, 2021, Salomón et al, 2020. MCYST's are the most commonly reported cyanotoxins, followed by cylindrospermopsins (CYN's) and saxitoxin (STX's), and less commonly anatoxins (ATX's) and nodularin (NOD) (Galanti et al, 2013, Sunesen et al, 2021.…”

Section: Introductionmentioning

confidence: 99%

Cyanotoxins bioaccumulation in freshwater ecosystems in Latin America: a review

Cantoral Uriza

2023

Hidrobiológica

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Background:The increasing evidence of risk to the environment and human health by cyanotoxin exposure during cyanobacterial blooms has been reported worldwide. Despite the knowledge of cyanotoxin presence in Latin America, cyanotoxin bioaccumulation from freshwater environments have not been reviewed for the region. Goals: To review the current knowledge of cyanotoxin accumulation in tissues of freshwater organisms in field studies in Latin America. Methods: An extensive literature search was conducted to construct a database including information on accumulation of cyanotoxins in organisms inhabiting freshwater environments in Latin America (i.e., México to Argentina). Results: We found twenty-one studies from 2001 to 2020, including twenty-seven mostly eutrophic water bodies, the majority from Brazil. Microcystis was the most reported genus responsible for cyanotoxin production. Fish comprised most of the species accumulating cyanotoxins (20 species). Nile tilapia (Oreochromis niloticus) was the most studied species, and 80% of the fish species included have commercial importance, which highlights a potential route of exposure to humans by consumption of contaminated food. Some studies showed the reduction of cyanotoxins in tissues after an experimental depuration time. Also, calculations of the potential human intakes of microcystins by fish consumption exceeded the recommendations of tolerable intakes in most of the cases. Conclusions: In Latin America, the geographic extent of studies is narrow, however the summarized information indicates a risk for environment and human health by cyanotoxins bioaccumulation. There is a need for more efforts to generate scientific research on cyanotoxins bioaccumulation, but also for improvement of local level management policies to reduce eutrophication.

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Microcistina en plantas de tratamiento de agua para consumo humano en un ambiente tropical: el Área Metropolitana de Costa Rica

Cited by 2 publications

References 8 publications

Cyanotoxins: environmental and health effects. Prevention measures

Cyanotoxins: environmental and health effects. Prevention measures

Cyanotoxins bioaccumulation in freshwater ecosystems in Latin America: a review

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