Stone sculptures, especially those displayed outdoors, are vulnerable to damage caused by industrial emissions. Pollutants like sulfur dioxide and particulate matter can erode surfaces, discolor materials, and accelerate deterioration. To safeguard these artworks, consider the following strategies:

1. Protective Coatings: Apply specialized sealants or waxes designed for stone surfaces. These coatings create a barrier against acidic pollutants and moisture.

2. Regular Cleaning: Use pH-neutral cleaners and soft brushes to remove accumulated pollutants without damaging the stone. Avoid harsh chemicals that may react with emissions.

3. Sheltered Placement: When possible, relocate sculptures to areas with less exposure to industrial fallout or install protective canopies.

4. Environmental Monitoring: Track local air quality and adjust maintenance schedules accordingly. High pollution days may require immediate cleaning.

5. Professional Restoration: For valuable pieces, consult conservation experts who can assess damage and recommend specialized treatments.

By combining these approaches, you can significantly extend the lifespan of stone sculptures while maintaining their aesthetic and historical value in polluted environments.