Science Inventory

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General overview of the Cyanobacteria Assessment Network (www.epa.gov/cyanoproject) current technology, software, and data. A future look of using Sentinel-2 higher resolution imagery and forecasting will also be provided.

Cyanobacterial harmful algal blooms (CyanoHABs) produce excessive amounts of cyanotoxins, mainly microcystins (MCs) and anatoxins (ATXs), significantly threatening aquatic ecosystems and public health. Accurately predicting CyanoHABs is essential to develop effective CyanoHAB pre...

U.S. states, tribes, and local agencies need consistent approaches to characterize the relative risk posed by harmful benthic cyanobacteria proliferations and to inform mitigation practices. USEPA is addressing this need with multi-year, multi-site field research and controlled e...

This is a requested presentation for the Association of Clean Water Administrators (ACWA) that discusses how ORD is the research arm of the EPA and provides the scientific foundation for EPA to execute its mandate to protect human health and the environment. An overview of the 6 ...

Cyanobacteria blooms are an increasing concern in U.S. freshwaters. Such blooms can produce nuisance conditions, deplete oxygen, and alter the food chain, and in some cases they may produce potent toxins, although many factors may modulate the relationships between biomass and to...

Abstract for Harmful Algal Blooms Session at SOT 2024 Anatoxins are small, water-soluble molecules produced by cyanobacteria in fresh and marine waters globally. They are known to cause prolonged depolarization at the neuromuscular junctions leading to generalized paralysis and c...

With increasing concerns about freshwater cyanobacteria blooms, there is a need to identify which waterbodies are at risk for developing these blooms, especially those that produce cyanotoxins. To address this concern, we developed spatial statistical models using the US National...

CyAN is a multi-agency project to develop an early warning indicator system to detect algal blooms in U.S. freshwater systems. This research supports federal, state, tribal, and local partners in their monitoring efforts to assess water quality to protect aquatic and human health...

Cyanobacterial harmful algal blooms (cyanoHABs) are detrimental not only to human and ecosystem health, but also to local economies that rely on surface water for consumption, tourism, and recreation. Previous work has been done to predict cyanoHABs in Florida at the lake and sta...

CyAN is a multi-agency project to develop an early warning indicator system to detect algal blooms in U.S. freshwater systems. This research supports federal, state, tribal, and local partners in their monitoring efforts to assess water quality to protect aquatic and human health...

Cyanobacterial harmful algal blooms pose environmental, economic, and human health concerns across waters of the United States.  However, monitoring changes in cyanobacteria at broad spatial and temporal scales remains difficult and many times with sporadic coverage. The Cya...

The purpose of the study on health effects and toxicity is to develop data, methods, and tools to advance the understanding of adverse health impacts among people, other animals and plants that are associated with exposure to harmful algal blooms (HABs) from both planktonic and b...

Cyanobacterial harmful algal blooms are a global problem with a need for synoptic monitoring capability.  The project objective is a Sentinel-2 (S-2) chlorophyll demonstration monitoring product for Florida, Ohio, and Oregon. This is an annual project report to the USACE Har...

Human and ecological health have been threatened by the increase of cyanobacteria harmful algal blooms (cyanoHABs) in freshwater systems. Successful mitigation of this risk requires understanding the factors driving cyanoHABs at a broad scale. To inform management priorities and ...

Harmful cyanobacterial blooms (HCBs) are of growing global concern due to their production of toxic compounds, which threaten ecosystems and human health. Saxitoxins (STXs), commonly known as paralytic shellfish poison, are a neurotoxic alkaloid produced by some cyanobacteria. Al...

Previously, we showed that prophylactic addition of glucose to Harsha Lake water samples could inhibit cyanobacteria growth, at least for a short period of time. The current study tested cyanobacterial control with glucose for the entire Harsha Lake bloom season. Water samples (1...

This overview is designed for a general audience without expertise in satellite remote sensing and forecasting. It is meant to highlight how the Cyanobacteria Assessment Network, CyAN , might provide useful real-time data, software, training, annual summary metrics, and 1-week fo...

This overview is designed for a general audience without expertise in satellite remote sensing and forecasting. It is meant to highlight how the Cyanobacteria Assessment Network, CyAN , might provide useful real-time data, software, training, annual summary metrics, and 1-week fo...

A novel cyanotoxin implicated in the deaths of around one hundred bald eagles and hundreds of coots across the Southeastern, US has recently been discovered. Upon initial investigation, the pathophysiology of the infected animals included the development of large vacuolar lesions...

This presentation was developed to update the SSWR HABs RAC on the progress made on SSWR.404.2 (Management of HABs in the Built and Natural Environment) during FY23.

Benthic harmful cyanobacteria blooms (HCBs) pose a significant threat to domestic animals, wildlife, and humans. They are a growing concern especially in the west. State, tribal, and local agencies need greater understanding of the risk posed by benthic HCBs. While The Interstate...

Cyanobacterial harmful algal blooms (HABs) can produce toxins that impair freshwater ecosystems used for drinking water, recreation, and habitat for aquatic biota. With HABs increasing in extent and intensity globally, water managers need information about how to prioritize lake ...

In an age of changing climate and overexploited resources, our work to understand water quality is more important than ever. Satellite remote sensing has emerged as a useful water quality monitoring tool, offering a cost-effective means of supplementing traditional in situ sampli...

There is a lack of information to estimate safe exposure levels to toxins produced by cyanobacteria for freshwater aquatic life. The uncertainty in concentrations and purity of standards for cyanotoxins, and potentially their cost, challenge their use for conducting acute and chr...

Harmful cyanobacteria blooms are increasingly recognized as a health risk for people and animals. Environmental public health officials seek to learn and become more familiar with the topic.