Ongoing tracking and public reporting critical to protect drinking water and community health.
Riverkeeper and a network of partners are currently monitoring and collecting data on a large, widespread harmful algal bloom (HAB) in the Hudson River Estuary. Based on observations to date, this appears to be the most extensive HAB in the estuary in living memory.
HABs can produce toxins that pose health risks to people, pets, and wildlife via ingestion, inhalation, or skin contact. The most common symptoms that may occur from exposure include skin rashes or stomach upset.
Exposure to high concentrations of the more potent and rare toxins can damage the liver or neurological system.
Dogs that swim in waters affected by HABs have died.
This HAB appears to be centered in the Hudson River in the vicinity of the Kingston-Rhinecliff Bridge.
Recent reports suggest that the HAB has affected an area stretching from roughly Catskill/Hudson in the North, to Garrison/West Point in the south, including tidal portions of tributaries like the Rondout and Esopus creeks.
Not all areas within this reach may be affected, or affected to the same degree, and it is unknown how long the condition may persist.
The public is advised to avoid water contact on shorelines where a suspected HAB is present.
Report any HAB observations to the NYHABS portal and to view a map of recent observations HERE.