Why Does Acid Rain Causes Damage To Marble Statues

This process occurs at the surface of the buildings or monuments.

Why does acid rain causes damage to marble statues.

When sulfurous sulfuric and nitric acids in polluted air and rain react with the calcite in marble and limestone the calcite dissolves. In exposed areas of buildings and statues we see roughened surfaces removal of material and loss of carved details. Acid rain can damage buildings and bridges with metallic parts that are exposed to rain and fog. When sulfurous sulfuric and nitric acids in polluted air react with the calcite in marble and limestone the calcite dissolves.

Acid rain damages structures such as the taj mahal and thomas jefferson memorial. The degree of damage is determined not only by the acidity of the rainwater but also by the amount of water flow. Many severe effects of air pollution on materials and structures come from acid rain. Stone surface material may be lost all over or only in spots that are more reactive.

Not only does acid rain aggressively dissolve calcium in stone but it corrodes certain types of metal. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide which react with the water molecules in the atmosphere to produce acids. Acid rain dissolves limestone marble cement and sandstone. Vulnerable metals include bronze copper nickel zinc and certain types of steel.

How does acid precipitation affect marble and limestone buildings. Acid precipitation affects stone primarily in two ways. In exposed areas of buildings and statues we see roughened.