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State of the art on cyanotoxins in water and their behaviour towards chlorine
- Source :
-
Toxicon . Apr2010, Vol. 55 Issue 4, p677-691. 15p. - Publication Year :
- 2010
-
Abstract
- Abstract: The occurrence of cyanobacterial blooms is drastically increasing in temperate countries and drinking water resources are threatened. As a result, cyanotoxins should be considered in water treatment to protect human health. This study presents a state of the art on cyanotoxins in water and their behaviour towards chlorination, a common drinking water disinfection process. Chlorination efficiency on cyanotoxins alteration depends on pH, chlorine dose and oxidant nature. Microcystins and cylindrospermopsin are efficiently transformed by chlorine, with respectively 6 and 2 by-products identified. In addition, chlorination of microcystins and cylindrospermopsin is associated with a loss of acute toxicity. Even though they have been less investigated, saxitoxins and nodularins are also altered by chlorine. For these toxins, no by-products have been identified, but the chlorinated mixture does not show acute toxicity. On the contrary, the fact that anatoxin-a has a very slow reaction kinetics suggests that this toxin resists chlorination. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00410101
- Volume :
- 55
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Toxicon
- Publication Type :
- Academic Journal
- Accession number :
- 48137196
- Full Text :
- https://doi.org/10.1016/j.toxicon.2009.10.028