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.
Value(s)
Type
(E) Emanations of other problems