Water Safety

Harmful Algal Blooms

  • Harmful algal blooms can occur when microscopic algae grow quickly in water, forming visible patches that can deplete oxygen and block sunlight that other aquatic organisms need to survive.

    Not only can harmful algal blooms cause harm to the health of the environment, plants, and animals, but some algae release toxins than endanger public health.

    The SEHD Safe Water work group has recognized the need to share the following resources and best practices from other states, federal agencies, and international organizations.

  • ASTHO Resources

  • Harmful Algal Blooms Issue Brief (2015)

    This issue brief provides background information on harmful algal blooms (HABs) and contains examples of the environmental impacts, health impacts, monitoring and management capabilities and the economic consequences of HABs on the US economy.

  • State Resources

    Florida: Department of Health
    Aquatic Toxins Program

    Florida: Fish and Wildlife Research Institute (pdf)
    Resource Guide for Public Health Response to Harmful Algal Blooms in Florida

    Indiana: Department of Environmental Management
    Blue-green algae resource page created in coordination with the Center for Earth and Environmental Science at Indiana University-Purdue University Indianapolis, the Indiana State Department of Healthmore »

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  • Federal Resources

    CDC: Environmental Hazards and Health Effects
    Harmful Algal Blooms

    EPA: Health and Environmental Effects Research
    International Symposium on Cyanobacterial Harmful Algal Blooms

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