PROVIDENCE, RI — The Rhode Island Department of Health (RIDOH) and the Rhode Island Department of Environmental Management (DEM) are lifting recent blue-green algae (cyanobacteria) warnings in area ponds, but recommend continued caution.
Recreational advisories for high levels of people and dog-toxic blue-green algae, also known as cyanobacteria, are now lifted at Spectacle Pond in Cranston, Roger Williams Ponds in Providence, and Melville Upper and Lower Ponds in Portsmouth. Two recent surveys conducted at these sites found no evidence of cyanobacteria blooms.
While conditions at Blackamore Pond in Cranston have improved, some evidence of blue green algae persists. A significant bloom is still present at Almy Pond in Newport. Blue-green algae are generally less active as seasonal changes reduce light and temperature in the winter. However, the possibility of recurring blooms and/or toxins represent potential risks, even in iced-over conditions.
DEM monitoring has ended for the year and will resume next June. Regardless of season, the public is reminded to avoid contact with any body of water that is bright green or has a dense, floating scum. Blue-green algae blooms may look like green paint or thick pea soup.
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