The NPS recently released the 2022 Air Quality Conditions & Trends Data

Air Resource Specialists, Inc. is happy to support the National Park Services’ Conditions & Trends website by processing disparate air quality data sets to make Park-scale metrics and dynamic charts accessible to the public in one place. You can find the complete data sets, which include overall air quality, visibility, ozone, and deposition spanning from 2009 – 2022 at https://www.nps.gov/subjects/air/park-conditions-trends.htm.