Overview

• The CNRS-coordinated Nodssum campaign aboard L’Atalante has charted more than 120 km² at depths exceeding 4,000 m and identified over 2,000 submerged waste barrels.
• Onboard radioprotection instruments and samples of water, sediment and marine life have detected only low levels of radionuclides.
• Spain’s Nuclear Safety Council reports no significant radioactivity in Galician or Cantabrian coastal waters.
• Regional leaders and the Sumar parliamentary group have formally pressed the central government for real-time briefings, barrel-integrity data and potential legal action against former dumping nations.
• Citizen petitions surpassing 30,000 signatures demand full transparency and a clear plan for ongoing monitoring or eventual recovery operations.