EPA Air · stack tests by county and year

Air-emissions stack tests in Perry County, Ohio, 2026

• 25Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Perry County, Ohio during 2026. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Perry County facility page.

Air-emissions stack tests in Perry County, other years

• 2025 23
• 2024 24
• 2023 26
• 2022 21
• 2021 23
• 2020 21
• 2019 28
• 2018 24
• 2017 25

Air-emissions stack tests recorded in Perry County, Ohio, 2026

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.

What this page shows

This page covers Clean Air Act facilities in the EPA air register for Perry, OH, with stack tests recorded in 2026. The stack tests recorded in 2026 total 25.