Nutrient samples were collected from seven river stations and seven bay stations on August 7th. All bay stations were sampled at the surface and bottom. In the five days prior to sampling and the morning of, there were 1.02 inches of precipitation recorded at T.F. Green.
Among the river stations sampled, the highest total nitrogen (TN) and dissolved inorganic nitrogen (DIN) concentrations were observed at Blackstone River @ Bike Path Bridge (TN = 1,390 ppb, DIN = 1,160 ppb); the highest total dissolved nitrogen (TDN) was observed in one of the duplicate samples at Pawtuxet River @ Broad St (1,470 ppb). The lowest TN, TDN, and DIN were observed at Woonasquatucket River @ Manton Ave Bridge (TN = 514, TDN = 480 ppb, DIN = 232 ppb).
Among the bay stations sampled, the highest surface total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Pawtuxet Cove (TN = 1,190 ppb, TDN = 1,040 ppb, DIN = 790 ppb). The lowest surface TN, TDN, and DIN concentrations were observed at Conimicut Point (TN = 653 ppb, TDN = 403 ppb, DIN = 154 ppb).
The next scheduled sampling date is August 21, 2024.