Risk assessment of cyanobacteria-toxins for small drinking water treatment plants with lake water intakes

Uduma, Uche A.; McBean, Edward A.; Gharabaghi, Bahram

doi:10.5897/ijwree2016.0669

Cited by 4 publications

(1 citation statement)

References 43 publications

(43 reference statements)

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“…This study indicates that infants who consume more water than adults or older children are particularly vulnerable to the toxic effects of MCs [56]. Similar studies conducted in drinking water treatment plants in Quebec (Canada) and Kubani (Nigeria) also noted HQs greater than 1, even after drinking water treatment [58]. Water samples from twenty-four water reservoirs in Eastern Cuba were evaluated for MC-LR levels.…”

Section: Increase In Cyanotoxin Exposure: Microcystinsupporting

confidence: 63%

Cyanobacterial Harmful Algal Bloom Toxin Microcystin and Increased Vibrio Occurrence as Climate-Change-Induced Biological Co-Stressors: Exposure and Disease Outcomes via Their Interaction with Gut–Liver–Brain Axis

Chatterjee

2023

Toxins

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The effects of global warming are not limited to rising global temperatures and have set in motion a complex chain of events contributing to climate change. A consequence of global warming and the resultant climate change is the rise in cyanobacterial harmful algal blooms (cyano-HABs) across the world, which pose a threat to public health, aquatic biodiversity, and the livelihood of communities that depend on these water systems, such as farmers and fishers. An increase in cyano-HABs and their intensity is associated with an increase in the leakage of cyanotoxins. Microcystins (MCs) are hepatotoxins produced by some cyanobacterial species, and their organ toxicology has been extensively studied. Recent mouse studies suggest that MCs can induce gut resistome changes. Opportunistic pathogens such as Vibrios are abundantly found in the same habitat as phytoplankton, such as cyanobacteria. Further, MCs can complicate human disorders such as heat stress, cardiovascular diseases, type II diabetes, and non-alcoholic fatty liver disease. Firstly, this review describes how climate change mediates the rise in cyanobacterial harmful algal blooms in freshwater, causing increased levels of MCs. In the later sections, we aim to untangle the ways in which MCs can impact various public health concerns, either solely or in combination with other factors resulting from climate change. In conclusion, this review helps researchers understand the multiple challenges brought forth by a changing climate and the complex relationships between microcystin, Vibrios, and various environmental factors and their effect on human health and disease.

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Section: Increase In Cyanotoxin Exposure: Microcystinsupporting

confidence: 63%