Graffiti vandalism poses a significant threat to public bronze sculptures, diminishing their aesthetic and historical value. To combat this, several proven methods can be implemented.

1. Protective Coatings: Applying anti-graffiti coatings creates a barrier that makes graffiti easier to remove without damaging the bronze surface. These coatings can be sacrificial (removed and reapplied) or permanent (long-lasting).

2. Regular Maintenance: Frequent inspections and prompt cleaning deter vandals by showing the sculpture is actively cared for. Specialized cleaning agents designed for bronze can safely remove graffiti.

3. Surveillance and Lighting: Installing CCTV cameras and improving lighting around sculptures discourages vandalism by increasing the risk of detection.

4. Community Engagement: Involving local communities in art preservation fosters a sense of ownership, reducing the likelihood of graffiti. Educational programs can highlight the cultural importance of sculptures.

5. Physical Barriers: Fencing or raised platforms can limit access to sculptures, though this should balance protection with public accessibility.

By combining these strategies, cities can effectively preserve bronze sculptures while maintaining their public appeal.