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Cyanobacteria Bloom Found in Stony Brook

Posted on May 30, 2024



FOR IMMEDIATE RELEASE:                     

May 30, 2024

CONTACT: Grace Kelly-McGovern


Cyanobacteria Bloom Found in Stony Brook

Analysis of surface water samples performed by SUNY Stony Brook has confirmed the presence of new cyanobacteria blooms, more commonly known as blue-green algae, in Roth Pond in Stony Brook.

Due to these findings, health officials ask residents not to use or recreate in these waters and keep their children and pets away from the area.

Though blue-green algae are naturally present in lakes and streams in low numbers, they can become abundant, forming blooms in shades of green, blue-green, yellow, brown or red. They may produce floating scums on the surface of the water or may cause the water to take on paint-like appearance.

Contact with waters that appear scummy or discolored should be avoided. If contact does occur, rinse off with clean water immediately.  Seek medical attention if any of the following symptoms occur after contact: nausea, vomiting or diarrhea; skin, eye or throat irritation; or allergic reactions or breathing difficulties.

To report a suspected blue-green algae bloom at a body of water that contains a Suffolk County-permitted bathing beach, contact the Suffolk County Department of Health Services’ Office of Ecology at 631-852-5760 between 8:30 a.m. – 4:30 p.m. or by email at any time at scdhsweb@suffolkcountyny.gov.

To report a suspected blue-green algae bloom at a body of water that does NOT contain a Suffolk County permitted bathing beach, email the New York State Department of Environmental Conservation (NYSDEC) at habsinfo@dec.ny.gov.

To view a map of all affected fresh waterbodies in New York State, visit NYHABS. Email questions to habsinfo@dec.ny.gov.

For additional information about blue-green algae, as well as other harmful algal blooms, visit the following websites:




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