health
May 2, 2026
Strange stain in Castillogrande: hydrocarbons ruled out and cause identified
A large stain observed on Friday, May 1, 2026, in the Castillogrande sector of the Bay of Cartagena caused concern among residents and passersby. In response, the General Maritime Directorate (DIMAR) immediately activated its protocols for such events.

TL;DR
- A large stain was observed in Castillogrande, Cartagena bay on May 1, 2026.
- The General Maritime Directorate (DIMAR) and Coast Guard initiated an investigation.
- Initial checks ruled out contamination from fuels or oils from vessels.
- Specialists from the CIOH performed field analysis.
- Preliminary results indicate the stain is of biological origin, not chemical or hydrocarbon-based.
- Further laboratory analysis will be conducted to determine the exact nature of the event.
- DIMAR will share information with local authorities for potential additional measures.
- DIMAR reiterated its commitment to marine protection and encouraged public reporting of maritime risks.