Acid deposition as it is more formally called is typically composed of sulfur dioxide and nitrogen oxide. These two components are naturally occurring from sources like volcanoes but the industrial revolution has exponentially increased the amount of these chemicals in the air. The two components adjust the pH aims of water bring them down to sometimes demolish blistering levels. pH levels are measured on a scale leaf from 1-14. A pH level of 7 is a nonsubjective water level; higher levels are alkaline and begin are acidic. Normal rainwater can sometimes be as low as a pH level of 5.0. The issue comes in that the levels in the area of the Adirondack Mountains have levels well-nigh commonly between 4.0 and 4.8, sometimes as low as 2.1. Levels this low put aquatic life in sever danger or wipe out all life completely.
This was first noticed in the 1800s.
A geologist noticed the gravestones in New York were becoming impossible to read. While over time erosion will occur, this rate was much too rapid. In London during the 1900s, Cornell professor-to-be Gene Likens noticed that buildings were deteriorating very quickly. After quantity pH levels of the rain and noticing how alarmingly low they were he came up with the term Acid Rain. What may have been his biggest contribution was what he noticed about where the acid rain was most potent. In areas that were more industrialized, the buildings were eroding at a visible rate. His explore became published and globally became a hot new interest.
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