Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms.
The Acid Rain Program (ARP), established under Title IV of the 1990 Clean Air Act (CAA) Amendments requires major emission reductions of sulfur dioxide (SO2) and nitrogen oxides (NOx), the primary precursors of acid rain, from the power sector.
As part of the United States’ commitment to implementing the Montreal Protocol on Substances that Deplete the Ozone Layer, Congress amended the Clean Air Act to add provisions (under Title VI) for protecting the ozone layer.
SciTech Institute is a nonprofit organization dedicated to enhancing and promoting STEM education and awareness in Arizona and beyond. It works to achieve this through some of the strongest STEM initiatives in Arizona, including the Arizona SciTech Festival, the Chief Science Officers program, the RAIN grant, the Arizona STEM School Community of Practice, Science For All and more.
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