A three-year study by the Martha's Vineyard Commission revealed both continued high levels of nitrogen in some ponds, while others showed improvement.
A three-year study by the Martha's Vineyard Commission revealed both continued high levels of nitrogen in some ponds, while others showed improvement.
All the saltwater ponds on the Vineyard are impaired to some degree, and each one faces a unique set of conditions. Public interest has reached a tipping point.