Harmful Algal Blooms - HABs

HABsHarmful Algal Bloom Notifications

DEC’s harmful algal bloom (HABs) notification season has begun. The New York Harmful Algal Bloom System, or “NYHABS”, features an interactive map that is updated daily through the fall informing the public about HABs locations in New York. Instructions on how to use NYHABS are on DEC's HABs notification page.

Know it: HABs vary in appearance from scattered green dots in the water, to long, linear green streaks, pea soup, or spilled green paint, to blue-green or white coloration.

Avoid it: People, pets, and livestock should avoid contact with floating mats, scums, 
and discolored water.
 

Report it: Report a suspected HAB using the NYHABs online reporting form. Report health concerns related to HABs to the Department of Health at harmfulalgae@health.ny.gov, or contact your local health department.