EPA Air · stack tests by county and year
Air-emissions stack tests in Marion County, Indiana, 2021
- 59Stack 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 Marion County, Indiana during 2021. 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 Marion County facility page.
Marion County, Indiana, 2021
Air-emissions stack tests in Marion County, other years
Air-emissions stack tests recorded in Marion County, Indiana, 2021
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 with stack tests in Marion county, IN, for 2021. It lists 59 stack tests recorded in 2021.