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Q.

Tell me anything about effects of acid rain on historical monuments. Name some of them.

Asked by Puneet Bansal, 15 Mar '09 10:23 am
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Answers (1)

1.

Acid rain is a broad term used to describe several ways that acids fall out of the atmosphere.

A more precise term is acid deposition, which has two parts: wet and dry.
Wet deposition refers to acidic rain, fog, and snow.
Dry deposition refers to acidic gases and particles.
E.g: Evaporated pollutants emitted in the atmosphere by industrial activities, such as sulphur dioxide and nitrogen oxides. Because of wind, the acid absorbed by clouds is often redirected in other areas, which is unfortunate for the neighbors that see their real estate and buildings suffer from fast erosion, including important historical monuments like the Coliseum.

Investigations into the effects of acid rain on objects such as stone buildings, marble statues, metals, and paints only began in the 1990s. A joint study conducted by the EPA, the Brookhaven National Laboratory, and the Army Corps of Engineers in 1993 found that acid rain was causing $5 billion worth of damage annually in a 17-state regi ...more
Answered by Jayakrishnan, 15 Mar '09 10:45 am

 
  
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