Other Resources:
Harmful Algal Blooms

General Information

National Oceanic and Atmospheric Administration (NOAA)

• Harmful Algal Blooms
  • What is a harmful algal bloom?
  • How do we forecast harmful algal blooms?
  • Are all algal blooms harmful?

U.S. Environmental Protection Agency (EPA)

• Cyanobacterial Harmful Algal Blooms in Water
  • Cyanobacteria/cyanotoxins
  • Health and ecological effects
• Harmful Algal Blooms and Nutrient Pollution
  Basic information from the EPA on HABs plus national and state partner resource

U.S. Geological Survey (USGS)

• Cyanobacterial Harmful Algal Blooms and U.S. Geological Survey Science Capabilities
  Good summary of the science behind HABs
• Field and Laboratory Guide to Freshwater Cyanobacteria Harmful Algal Blooms – USGS
  A comprehensive compilation of field images of different species of cyanobacteria

World Health Organization (WHO)

• Algae and cyanobacteria in freshwater
  Comprehensive discussion of cyanobacteria and cyanotoxins
• Guidelines for Safe Recreational Waters Volume 1 – Coastal and Fresh Waters (2003)
  General information on a range of  possible contaminants to recreational waters

Other

• CDC Harmful Algal Bloom Online Resources
  Compilation of online HABs resourcesPurdue University website on cyanobacteria research
• Freshwater Harmful Algal Blooms: Causes, Challenges, and Policy Considerations
  Congressional Research Service Report om HABs (2017)

Health Effects

WHO: Toxic Cyanobacteria in Water: A guide to their public health consequences, monitoring and management (1999)
Comprehensive summary of the scientific understanding of cyanobacteria, cyanotoxins, harmful algal blooms, and WHO health guidance

Harmful Algal Blooms | Features | CDC
Basic information from the Centers for Disease Control (CDC) on HABs

Harmful Algal Bloom-Associated Illnesses | CDC

• General information
• Sources of exposure and risk factors
• Illness and symptoms
• Prevention and control
• HABs and the environment

Health and Ecological Impacts of Harmful Algal Blooms: Risk Assessment Needs
Journal article with a list of related journal articles on cyanobacteria and cyanohabs.

Toxicological Summary and Suggested Action Levels to Reduce Potential Adverse Health Effects of Six  Cyanotoxins
Cyanotoxin analysis prepared by the Office of Environmental Health Hazard Assessment, California Environmental Protection Agency

Harmful Algal Bloom Monitoring and Tracking

EPA Cyanobacteria Assessment Network (CyAN) Project
Multi-agency project to develop an early-warning indicator system using historical and current satellite data to detect algal blooms in U.S. freshwater systems

NCCOS Harmful Algal Bloom Research Website
Measurements of stressor impacts on waterbodies that can lead to HABs

NOAA Harmful Algal Bloom Operational Forecast System (HAB-OFS)
Routine HAB forecasts to help members of the public make informed decisions when a bloom is temporarily affecting their area. The forecasts also aid people responsible for responding to bloom impacts. Primarily marine environments.

USGS Summary of Cyanobacteria Monitoring and Assessments in USGS Water Science Centers
Fact sheet

Drinking Water

Cyanotoxins in Drinking Water | US EPA
Comprehensive collection of resources for drinking water systems

Drinking Water Health Advisory Documents for Cyanobacterial Toxins

• Fact Sheet: 2015 Drinking Water Health Advisories for Two Cyanobacterial Toxins
• Drinking Water Health Advisory for the Cyanobacterial Toxin Cylindrospermopsin
• Drinking Water Health Advisory for the Cyanobacterial Microcystin Toxins
• Health Effects Support Document for the Cyanobacterial Toxin Anatoxin-A
• Health Effects Support Document for the Cyanobacterial Toxin Cylindrospermopsin
• Health Effects Support Document for the Cyanobacterial Toxin Microcystins

WHO Blue-green algae toxins: Microcystin-LR in Drinking-water
Background document for development of WHO Guidelines for drinking-water quality

American Water Works Association Cyanotox Tools
Technical resources for drinking-water systems

Additional Photos

• Utah Department of Health Harmful Algal Bloom website
• New York Department of Environmental Conservation Algae Photo Gallery

Signage

Download Warning and Danger Signs