Application of the WHO alert level framework to cyanobacterial monitoring of Lake Champlain, Vermont

Environmental Toxicology
Mary C WatzinMeghan A Kreider

Abstract

The increasing incidence of toxic cyanobacteria blooms worldwide has created a need for practical and efficient monitoring in order to protect public health. We developed a monitoring and alert framework based on World Health Organization (WHO) recommendations and applied it on Lake Champlain during the summers of 2002-2004. The protocol began with collection of net samples of phytoplankton in order to maximize the chance of finding potential toxin-producing cyanobacteria. Samples were collected lake-wide in partnership with ongoing monitoring efforts, but because open water sample sites did not capture conditions along the shoreline, we added near-shore and shoreline stations in problem areas. Samples were examined qualitatively until potential toxin-producing taxa were found. Then quantitative analyses began, using a rapid screening method to estimate cell density based on colony size. A final cell density of 4000 cells/mL triggered toxin analyses. Primary analysis was for microcystins using ELISA methods. Cell densities, locations of colonies, and toxin concentrations were reported weekly to public health officials. We found that screening for potential toxin-producing cyanobacteria and then measuring toxin concentrations wh...Continue Reading

References

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Citations

Dec 13, 2012·Environmental Monitoring and Assessment·Som Cit SinangAnas Ghadouani
Mar 26, 2014·Environmental Monitoring and Assessment·Judita KoreivienėVilma Burškytė
Jan 15, 2016·International Journal of Hygiene and Environmental Health·Frédéric PitoisEstelle Baurès
Jan 5, 2007·Environmental Management·Robyn L SmythRobert E Manning
May 8, 2009·EcoHealth·Wenbiao HuShilu Tong
Feb 5, 2008·Journal of Environmental Monitoring : JEM·Luc BrientMyriam Bormans
Jan 17, 2014·Environmental Science. Processes & Impacts·Arash ZamyadiMichèle Prévost
Dec 14, 2011·Journal of Environmental Monitoring : JEM·A ZamyadiS Dorner

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