acid deposition

in atmospheric chemistry
The acids deposited by transfer from the atmosphere either by @P04795@ (rain, @F02470@, snow, etc.), called wet deposition, or by direct transfer to the surface of the earth induced by the flow of acid-containing air masses over the earth's surface, called dry deposition.
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2170 [Terms] [Paper]