Cyanobacteria Bloom in Georgica Pond

Image of a sign warning of the presence of Harmful Blue-Green Algal Blooms.
Image of a sign warning of the presence of Harmful Blue-Green Algal Blooms.

Please be advised that analysis of surface water samples taken by SUNY Stony Brook has confirmed a new cyanobacteria bloom in Georgica Pond. Cyanobacteria is more commonly known as blue-green algae.

The presence of blue-green algae poses a risk to public health. As such, officials advise residents to avoid using, swimming or wading in the pond. Please keep pets and children away from the area as well.

When a bloom is active, it may appear in a variety of colors. Including blue-green, yellow, brown or red. There may be scum floating on the water’s surface.

Avoid contact with scummy or discolored water. If contact occurs, be sure to clean the area thoroughly. Seek medical attention if any of the following symptoms appear after said contact: nausea, vomiting or diarrhea; skin, eye or throat irritation; allergic reactions or breathing difficulties.

For further information, please click here to connect to the Suffolk County Department of Health’s public notice.


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