Acid Rain (3)

Acid rain (3).

Acid rain was first observed in England, Manchester, one of the largest industrial centers of the revolution. 1852. Robert Angus Smith found the relationship between acid rain and atmospheric pollution. The same Smith in 1872. the first to use the term acid rain. Although acid rain seen in the XIX century., Scientists began to explore this phenomenon only in the twentieth century. 7th decade.

Acid rain changes can be identified by layers of ice glaciers. They ice water pH ranged from 6 (the beginning of the industrial revolution) to 4.5 or even 4 also observed organisms called diatoms that live in ponds or ponds. Dead organisms formed pellet water bottom. These algae require a certain pH, so that their abundance in different circles indicate the pH change.

Since the beginning of the industrial revolution of sulfur and nitrogen oxide emissions only increased. Industrial districts found a pH well below 2.4 (the acidity of vinegar). It is in large industrial areas, as well as transport, are the main agents of acid rain. Acid rain problem is growing not only because of the number of people and the growth of industry. Aukštųjųkaminų use in order to reduce local pollution is caused by regional atmospheric interference. Often acid lietusiškrinta far from the place where. A lot of the rain bothers the mountains (just due to greater precipitation). An example of this effect may be the Scandinavian region where acid rain much higher than the country atmospheric pollution.