IDEM utilizes air quality data to provide the following particulate matter summaries:
- Particulate Matter Season Summary Reports: Annual reports providing an overview of PM2.5 and its impacts, national air health standards, Indiana’s PM2.5 monitoring network, a summary of PM2.5 monitoring data, air quality trends, and the status of PM2.5 designations in Indiana.
- PM2.5 Air Quality Action and Exceedance Days Summaries:
- PM2.5 Air Quality Action and Exceedance Days Summary 2025 [PDF]
- PM2.5 Air Quality Action and Exceedance Days Summary 2024 [PDF]
- PM2.5 Air Quality Action and Exceedance Days Summary 2023 [PDF]
- PM2.5 Air Quality Action and Exceedance Days Summary 2022 [PDF]
- PM2.5 Air Quality Action and Exceedance Days Summary 2021 [PDF]
- PM2.5 Air Quality Action and Exceedance Days Summary 2020 [PDF]
- Archive
- PM2.5 Speciation Reports:
- Particulate Matter Special Studies:
Subscribe for Updates
Click on the button below to sign up to receive e-mail or SMS alerts when this page is updated.