Estimating Microcystin Levels At Recreational Sites In Western Lake Erie And Ohio.

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A new article, published in Harmful Algae, describes a study to predict cyanobacterial harmful algal blooms (cyanoHABs) at three Ohio recreational lake sites.

Harmful Algal Bloom Sampling

new article, published in Harmful Algae, describes a study to predict cyanobacterial harmful algal blooms (cyanoHABs) at three Ohio recreational lake sites.  This is a follow-up article to a previously published USGS report.  A cyanoHAB is a large growth of bacteria that produces toxins such as microcystin. Staff collected data and made water quality and environmental measurements that were used to identify factors that could be used to develop linear-regression models to estimate microcystin levels. The results of this study showed that models could be developed for estimating a microcystin threshold concentration at a recreational freshwater lake site, with potential to expand their use to provide public health information to water resource managers and the public for both recreational and drinking waters.

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Harmful Algal Bloom (HAB) in a stream
July 13, 2016

Cyanobacterial harmful algal blooms (HABs) are increasingly a global concern because HABs pose a threat to human and aquatic ecosystem health and cause economic damages. Toxins produced by some species of cyanobacteria (called cyanotoxins) can cause acute and chronic illnesses in humans and pets. Aquatic ecosystem health also is affected by cyanotox­ins, as well as low dissolved oxygen concentrations and changes in aquatic food webs caused by an over-abundance of cyanobac­teria. Economic damages related to HABs include loss of recreational revenue, decreased property values, and increased drinking-water treatment costs.