The Marine Biological Laboratory and Great Pond Foundation are collecting water samples along Edgartown Great Pond in hopes of unlocking the source of nitrogen that has been polluting the pond.
Island boards of health, working in conjunction with the Great Pond Foundation, issued the summer’s first cyanobacteria bloom watch notices last week.
Wastewater discharge from urbanization to the north and east of Edgartown Great Pond has been identified as the primary source of increased nitrogen loading in the pond, according to a new study by a Woods Hole scientist.
A new private-public coalition announced this week will monitor the presence of cyanobacteria in the Edgartown, Chilmark and Tisbury Great Ponds this summer, including through maps and a special-purpose website.