Submersible survey finds corroded Atlantic radioactive waste barrels leaking on seafloor

The short version

• A research mission using a crewed submersible investigated Atlantic dumping sites used between 1949 and 1982, finding degraded barrels spilling radioactive waste.[Slashdot]
• Ship instruments detected radioactive signals such as cobalt-60 and niobium-94, though activity levels did not pose major radiation hazards to the research crew.[Slashdot]
• Various marine organisms, including anemones, sponges, and crabs, were observed using the barrels as habitats on the seafloor.[Slashdot]
• Collected oceanographic and biological samples are undergoing further laboratory analysis to evaluate long-term environmental impacts.[Slashdot]

Key facts

• Over 200,000 barrels of low-level radioactive waste were disposed of on the Atlantic seafloor between 1949 and 1982.[Slashdot]
• The NODSSUM project utilized the submersible Nautile to map and examine the condition of the submerged waste.[Slashdot]
• Researchers found that many barrels had corroded, releasing isotopes including cobalt-60 and niobium-94 into the immediate environment.[Slashdot]
• Radiation levels did not cause contamination on the submersible or pose major protection issues for the team.[Slashdot]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.

• Whatever Happened to the 150,000 Tons of Radioactive Waste Stored Under the Atlantic Ocean?Slashdot