Although often referred to as a blue-green algae, Cyanobacteria is in fact a bacteria and not an algae. Cyanobacteria blooms have been prevalent in our ponds and lakes this summer, leading to many beach closures across the Cape. Contact with cyanobacteria can cause skin and eye irritation to humans. In addition, water contaminated with cyanobacteria can pose health risks to dogs and other animals, as well as small children.

Since 2017, Association to Preserve Cape Cod (APCC) has been monitoring ponds and lakes across the Cape. Their frequent monitoring helps to track the formation and occurence of harmful cyanobacteria blooms.

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Videos on Cyanobacteria


Barnstable Clean Water Coalition