Cyanobacteria In Salem, Kingston, Northwood, Rindge, Deerfield, And Other NH Ponds, Lakes

CONCORD, NH — The state of New Hampshire is warning of cyanobacteria issues in several ponds and lakes around the state.

Earlier this week, the state issued cyanobacteria alerts at Captain Pond in Salem, Country Pond in Kingston, and Northwood Lake in Northwood and Deerfield. Cyanobacteria warnings and advisories include Arlington Mill Reservoir in Salem, Pawtuckaway Lake in Nottingham, Lake Monomonac in Rindge, and Great Pond in Kingston.

The state issued cyanobacteria warnings due to their blooms and surface scums potentially forming toxins in the water.

There were no active fecal warnings or advisories.

“Toxins can cause both acute and chronic health effects that vary in severity,” officials said. “Acute health effects include irritation of the skin and mucous membranes, tingling, numbness, nausea, vomiting, seizures, and diarrhea. Chronic effects may include liver and central nervous system damage. Be cautious of lake water that has a surface scum, changes colors, or appears to have green streaks or blue-green flecks aggregating along the shore.”

Anyone exposed to cyanobacteria should seek medical attention, officials said.

The updated healthy swimming mapper can be found linked here.

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