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Cyanobacterial toxins: a growing environmental concern
Shamama Haider1, Vijay Naithani, P N Viswanathan
1Ecotoxicology Section, Industrial Toxicology Research Centre, P.O. Box-80, M.G. Marg, -226001, Lucknow, India.
Chemosphere
|May 6, 2003
Summary
Toxic cyanobacteria blooms in water bodies pose global health risks. This review covers their identification, sources, toxicity (hepatotoxicity and neurotoxicity), and water treatment efficacy.
Area of Science:
- Environmental Science
- Toxicology
- Microbiology
Background:
- Unusual blooms of toxic cyanobacteria (blue-green algae) are a growing global concern.
- Species like Anabaena, Microcystis, and Nodularia cause adverse health effects in various water bodies worldwide.
Purpose of the Study:
- To provide an overview of toxic cyanobacteria, including morphology and taxonomy.
- To discuss sources of contamination, such as dietary supplements.
- To detail cyanotoxin effects (hepatotoxicity, neurotoxicity) and evaluate water treatment efficacy.
Main Methods:
- Literature review of scientific reports and studies on toxic cyanobacteria.
- Compilation of data on cyanobacteria morphology, taxonomy, and toxin mechanisms.
- Analysis of reported human exposure cases and water treatment effectiveness.
Main Results:
- Detailed description of toxic cyanobacteria species and their toxins.
- Identification of potential contamination sources, including dietary supplements.
- Documentation of acute and chronic health impacts, including liver and nerve damage.
Conclusions:
- Toxic cyanobacteria pose significant public health risks globally.
- Effective water treatment strategies are crucial for controlling cyanobacterial blooms and mitigating health impacts.