Rhode Island lifts algae advisory at Portsmouth ponds, warns against contact at Roger Williams Park
State health and environmental officials said a blue-green algae bloom has cleared at Upper and Lower Melville Pond, but urged people and pets to stay out of Roosevelt Lake and Pleasure Lake in Providence.
Rhode Island health and environmental officials said Wednesday that a harmful algae bloom has cleared at Upper Melville Pond, also known as Thurston Gray, and Lower Melville Pond in Portsmouth, lifting their recommendation that people avoid swimming, fishing and boating there.
At the same time, the Rhode Island Department of Health and the state Department of Environmental Management said people should avoid contact with Roosevelt Lake and Pleasure Lake at Roger Williams Park in Providence, where blooms were found. The agencies said water samples were collected by the environmental agency and tested at the state health laboratories.
All recreation at the two Providence lakes, including swimming, fishing, boating and kayaking, carries a high risk to health and should be avoided, the agencies said. They also urged caution throughout the Roger Williams Park ponds because blooms can shift locations, and said people should not drink untreated water or eat fish from affected waters, and should keep pets from drinking or swimming in them.
The blooms are caused by blue-green algae, or cyanobacteria, which occur naturally in water and can produce toxins harmful to people and animals, according to the health department. Skin contact can cause rashes, sore throat and eye and nose irritation, and swallowing the water can cause stomach pain, diarrhea, vomiting and nausea, the agencies said. More serious effects can involve the liver and nervous system.
Officials said affected water may look like green paint or pea soup, with scum along the shoreline, and that the advisory for the Providence lakes remains in place until follow-up samples show the bloom has cleared. Suspected blooms can be reported to the environmental agency's Office of Water Resources.
This brief was drafted by AI from a public agency press release and published by The New England Signal. Why we use AI for stories like this one.