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Rhode Island

Rhode Island lifts algae advisory at Lower Melville Pond in Portsmouth

State health and environmental officials said the blue-green algae bloom has cleared and testing found no toxins, though they warned that conditions can change quickly.

Rhode Island health and environmental officials have lifted their recommendation that people avoid swimming, boating and other recreation at Lower Melville Pond in Portsmouth, saying a harmful blue-green algae bloom there has cleared.

The Rhode Island Department of Health and the Rhode Island Department of Environmental Management announced the change Friday. The agencies said laboratory testing showed algae levels in the pond are low and that no toxins were detected, meeting state safety guidelines.

The bloom was caused by cyanobacteria, commonly called blue-green algae, which can produce toxins harmful to people and animals.

Officials cautioned that bloom conditions can change quickly. Water affected by a bloom may have bright to dark green scum along the shoreline and thick mats of algae floating on the surface, and it can look like green paint, pea soup or green cottage cheese, according to the health department. The agencies said people and pets should stay away from water that looks like that, and that toxins can linger after a bloom is no longer visible.

Residents who suspect a blue-green algae bloom can report it to the environmental department's Office of Water Resources at 401-222-4700, pressing 3 and selecting the Office of Water Resources. Officials asked that people send a photograph of the bloom if possible. The department maintains an online tracker listing current algae advisories and testing data.

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Rhode Island