What area of the US is mainly responsible for the production of acid rain and what area mainly feels the effects?

The northeastern United States, particularly around industrial regions such as the Ohio Valley and the Appalachian Mountains, is mainly responsible for the production of acid rain due to emissions of sulfur dioxide and nitrogen oxides from factories and vehicles. The effects of acid rain are most acutely felt in the northeastern states, including New York and Pennsylvania, where sensitive ecosystems, forests, and water bodies are impacted by the resulting acidification.