To verify North Korean nuclear wastewater allegations and ensure safety at Incheon National University's Songdo campus, radiation measurement activities were conducted in Ganghwado and nearby areas using portable detectors to assess air dose rates, seawater, soil, and sediment samples against natural background levels, confirming no significant contamination. Campus measurements at key sites like lecture halls, labs, and dorms verified indoor/outdoor radiation levels met safety standards, with results transparently shared alongside educational sessions to alleviate public concerns and boost environmental awareness.