Stone sculptures, whether displayed outdoors or indoors, are vulnerable to damage caused by airborne pollutants such as acid rain, soot, and industrial emissions. Protecting these artworks requires a combination of proactive measures and regular maintenance.

1. Regular Cleaning: Gently wash sculptures with distilled water and soft brushes to remove surface contaminants. Avoid harsh chemicals that may erode the stone.

2. Protective Coatings: Apply breathable sealants like siloxane or acrylic resins to create a barrier against pollutants while allowing moisture to escape.

3. Sheltered Placement: Position sculptures under eaves or in shaded areas to minimize exposure to rain and windborne particles.

4. Microclimate Control: For indoor displays, use air purifiers and maintain stable humidity levels (40–60%) to reduce pollutant buildup.

5. Annual Inspections: Check for cracks or discoloration, which may indicate pollutant penetration, and address issues promptly.

By implementing these strategies, you can significantly extend the lifespan of stone sculptures while preserving their aesthetic and historical value.