List of Harmful Cyanobacterial Bloom Advisories in Massachusetts

The State of Massachusetts publishes a current update on all state ponds that are reporting toxic algae blooms. The most recent report can be found at https://www.mass.gov/alerts/harmful-cyanobacterial-bloom-advisories-in-massachusetts-current-as-of-november-28-2022

Related information from the State of Massachusetts::

Guidance for Local Health on Responding to CyanoHABs (PDF)

Open PPTX file, 1.04 MB, forRecreational Risk Management of Surface Waterbodies: Cyanobacteria Surveillance in Massachusetts (PowerPoint)