EPA Air · stack tests by state, industry and year

Petroleum and coal products manufacturing (NAICS 3241): stack tests in Mississippi, 2026

• 13Stack 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 2026 at a Mississippi source whose primary industry code is NAICS 3241. A facility filing more than one industry code is counted under the first one on its record.

Petroleum and coal products manufacturing (NAICS 3241) in Mississippi, other years

• 2025 31
• 2024 23
• 2023 29
• 2022 24
• 2021 46
• 2020 13
• 2019 29
• 2018 130
• 2017 53

Other industries in Mississippi, 2026

• Pipeline transportation (NAICS 4862) 82
• Primary metal manufacturing (NAICS 3313) 29
• Chemical manufacturing (NAICS 3251) 25
• Oil and gas extraction (NAICS 2111) 20
• Paper manufacturing (NAICS 3221) 18
• Chemical manufacturing (NAICS 3252) 17
• Mining and quarrying (NAICS 2123) 15
• Warehousing and storage (NAICS 4931) 13
• Space research and technology (NAICS 9271) 10
• Utilities (NAICS 2212) 7
• Wood product manufacturing (NAICS 3212) 5
• Utilities (NAICS 2211) 4
• Merchant wholesalers, nondurable goods (NAICS 4247) 3

Air-emissions stack tests recorded in Mississippi, 2026

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.