Problem

Corrosion of stonework

Nature:

Stonework is corroding through the world mostly due to pollution of the atmosphere. While the rate of corrosion on structurally used stone may be very slow, a centimetre a century, this rate on decorative stonework is disastrous. Priceless statues are being eaten away.

Background:

Sulphur dioxide formed by burning high-sulphur fossilized fuel is especially damaging to limestone. The calcium carbonate interacts with the sulphur dioxide and becomes calcium sulphate which is more soluble and washes away in the rain.

Values:
Corrosion
Related UN Sustainable Development Goals:
GOAL 9: Industry, Innovation and InfrastructureGOAL 12: Responsible Consumption and Production
Problem Type:
E: Emanations of other problems
Date of last update
23.09.2019 – 16:03 CEST