Algae Bloom Puts Portsmouth Ponds Off-Limits

PORTSMOUTH, RI — A blue-green algae bloom in Upper and Lower Melville Ponds in Portsmouth has the Rhode Island Department of Health recommending people to avoid all contact with the water in those ponds.

The algae — called cyanobacteria — can produce toxins that can hard humans and animals.

Those near the water should make sure not to ingest it or eat fish from the ponds. Fishing, boating, kayaking, as well as swimming, should be avoided.

Pets should not be allowed in the water or to drink water from the ponds.

The RI DOH said the advisory is in effect until further notice.

Blue-green alga affects Rhode Island ponds in the summer. Any body of water with a bright green coloration or dense floating algal mats should be avoided. Water may look like "green paint, thick pea soup or cottage cheese."

Residents who believe they see algal growth in ponds are asked to send photographs here.