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Cyanobacteria Harmful Algae Bloom Program

Contact Us
Phone: 971-673-0482
FAX: 971-673-0457
TTY: 711

Toll-free: 877-290-6767

Cyanobacteria Harmful Algae Bloom Program (CHAB)
800 NE Oregon Street,
Portland, OR 97232

Hours of Operation
8:00 AM - 5:00 PM

About Us

The Harmful Algae Bloom Surveillance Program (HABS) works to better understand the occurrence of toxic algae blooms in Oregon and their impact on human health. We work with a variety of partners to share information, coordinate efforts and communicate with the public.


  • Collect freshwater and marine water algae bloom data that includes bloom frequency, intensity, duration and species composition.
  • Collect reports of toxic algae-related human and animal illness and enter these data into the national Harmful Algae Bloom Illness Surveillance System database.
  • Advise the public when a harmful algae bloom has been detected so people can take protective action to avoid illness.
  • Develop relationships with partners who are involved in responding to algae blooms.
  • Build the capacity of partners to sample water bodies for algae blooms in a scientifically sound manner.
  • Identify drinking water systems that may be vulnerable to algae blooms and prioritize them for future prevention and response activities.
  • Increase public awareness about harmful algae blooms through outreach and educational activities.

What We Do

HABS is part of Environmental Public Health in the Center for Health Protection. Search the Public Health Program Directory to see all programs in the Oregon Public Health Division.