Acid Deposition

acid deposition

Parthenon_acid _damage_RMM0002_DDS21_small.jpg (13677 bytes)

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Courtesy USGS

Black crusts on columns in the Parthenon are a product chemical weathering as a result of acid deposition , Athens Greece

buckets_USGS.gif (35368 bytes)
Courtesy USGS

Buckets for collecting acid rain. The bucket on the right is for dry deposition and the one on the left for wet deposition. When it begins to rain, the lid on the wet bucket lifts and closes over the top of the dry bucket.

Acid deposition is the deposition of acids on a surface in solid or liquid form. Acid depostion includes dry deposition or impaction of acids in a solid form on surfaces or wet deposition from acid rain, snow, fog, etc. Building materials made from limestone and marble are particularly susceptible to chemical weathering from acid deposition.