Strategies for Preventing and Managing Harmful Cyanobacterial Blooms (HCBs)
Cyanobacteria are microscopic, photosynthetic organisms that are found naturally in all aquatic environments. Under certain conditions, cyanobacteria can multiply and become very abundant, discoloring the water throughout a water body or accumulating at the surface; these occurrences are known as blooms. Cyanobacteria may produce potent toxins (cyanotoxins) that can pose a threat to human health, wildlife and domestic animals, aquatic ecosystems, and local economies.

This ITRC guidance discusses key aspects of harmful cyanobacterial blooms management that waterbody managers and other interested parties should consider as they respond to these events.
Management Strategy Sheets
Along with the release of the Harmful Cyanobacteria Guidance Document, the team developed a series of downloadable sheets that provide descriptions of management strategies evaluated for effectiveness, advantages, limitations, relative cost, and regulatory and policy considerations.
Training Modules
Complementing this eagerly-anticipated guidance document, ITRC's HCB Team will be hosting live internet-based training sessions to accompany this new guidance. The first session will be on April 29, 2021 (1:00pm - 3:15pm EST), and will provide an in-depth look into Strategies for Preventing and Managing Harmful Cyanobacterial Blooms.
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ITRC is a program of the Environmental Research Institute of the States (ERIS). ERIS is a 501(c)(3) organization incorporated in the District of Columbia and managed by the Environmental Council of the States (ECOS).