EPA Air · stack tests by state, industry and year
Chemical manufacturing (NAICS 3252): stack tests in Louisiana, 2025
- 5Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2025 at a Louisiana source whose primary industry code is NAICS 3252. A facility filing more than one industry code is counted under the first one on its record.
Chemical manufacturing (NAICS 3252) in Louisiana, other years
Other industries in Louisiana, 2025
- Oil and gas extraction (NAICS 2111) 37
- Pipeline transportation (NAICS 4862) 24
- Utilities (NAICS 2212) 22
- Petroleum and coal products manufacturing (NAICS 3241) 10
- Chemical manufacturing (NAICS 3251) 8
- Utilities (NAICS 2211) 4
- Chemical manufacturing (NAICS 3253) 3
Air-emissions stack tests recorded in Louisiana, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-30 | SHINTECH LOUISIANA LLC - SHINTECH PLAQUEMINE PLANT | PLAQUEMINE, Iberville, LA | Pass | State |
| 2025-12-15 | SHINTECH LOUISIANA LLC - SHINTECH PLAQUEMINE PLANT | PLAQUEMINE, Iberville, LA | Pass | State |
| 2025-12-15 | SHINTECH LOUISIANA LLC - SHINTECH PLAQUEMINE PLANT | PLAQUEMINE, Iberville, LA | Pass | State |
| 2025-01-29 | SHINTECH LOUISIANA LLC - SHINTECH PLAQUEMINE PLANT | PLAQUEMINE, Iberville, LA | Pass | State |
| 2025-01-28 | SHINTECH LOUISIANA LLC - SHINTECH PLAQUEMINE PLANT | PLAQUEMINE, Iberville, LA | Pass | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.