Cyanobacteria - lakes
Health officials identified cyanobacteria as Aphanocapsa, Anabaena and Woronichinia. The heaviest blooms were found close to the shorelines.
Cyanobacteria are not rare, but excess phosphorus is available to the water leads to blooms and surface scums. Places in New Hampshire that have got contaminated with cyanobacteria this summer include Long Pond in Pelham and Elm Brook Park Beach in Hopkinton.
A person exposed to cyanobacteria can experience a range of health problems from skin irritation to liver damage.