Potomac River Sediment Study
NAVAL ORDNANCE STATION INDIAN HEAD MD INDIAN HEAD United States
Pagination or Media Count:
Analyses of Potomac River sediments for approximately 20 metals have been made using atomic absorption spectrometry. Sample preparation involved extraction with water and nitric acid. The river area surveyed extended from Key Bridge to Piney Point, a distance of 96 river miles. Data are presented for the following metals aluminum, barium, cadmium, calcium, chromium, cobalt, copper, iron, lead, lithium, magnesium, manganese, nickel, potassium, silver, strontium, vanadium, and zinc. A few analyses were also made for mercury. Lead content was highest at the Woodrow Wilson and Route 301 Bridges. Copper, chromium, and nickel concentrations at Woodrow Wilson Bridge and Piscataway Creek appear to be associated with major waste treatment plants whose outfalls are in the vicinity. High concentrations of manganese were found in an undeveloped section of the river.
- Physical and Dynamic Oceanography