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Description of an acid rain formation process


In this process diagram you can find the illustration of how acid rain is originated.

Acid rain forms when pollutants from anthropogenic and natural sources meet in the air. Then after chemical reaction with cloud water pollutants fall as acid rain.

Let’s look at this process in detail. VOC, NOx produced by natural sources and SO2, VOC, Hg and NOx produced by human activities are released into the air. Then these compounds mixed with particulate or gaseous pollutants after participation in some chemical reactions can fall down as dry deposition, but when mixed with cloud water – as wet deposition – acid rain. As a result, receptors – plants, soil, water are damaged and undergone by the depositions.

In conclusion, we see that the key element which creates acid rains is the SO2 from anthropogenic sources. It brings damages for receptors in nature not only in form of acid rain but also in form of dry deposition.



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