EPA Air · stack tests by state, industry and year

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

• 4Stack 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 Alabama 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 Alabama, other years

• 2025 26
• 2024 22
• 2023 19
• 2022 15
• 2021 23
• 2020 22
• 2019 22
• 2018 19
• 2017 19

Other industries in Alabama, 2026

• Pipeline transportation (NAICS 4862) 71
• Paper manufacturing (NAICS 3221) 41
• Utilities (NAICS 2211) 26
• Wood product manufacturing (NAICS 3212) 25
• Primary metal manufacturing (NAICS 3311) 20
• Chemical manufacturing (NAICS 3251) 20
• Nonmetallic mineral product manufacturing (NAICS 3274) 20
• Primary metal manufacturing (NAICS 3314) 19
• Nonmetallic mineral product manufacturing (NAICS 3279) 16
• Transportation equipment manufacturing (NAICS 3361) 12
• Oil and gas extraction (NAICS 2111) 9
• Nonmetallic mineral product manufacturing (NAICS 3273) 9
• Merchant wholesalers, nondurable goods (NAICS 4247) 8
• Chemical manufacturing (NAICS 3252) 7
• Wood product manufacturing (NAICS 3219) 7
• Primary metal manufacturing (NAICS 3313) 6
• Primary metal manufacturing (NAICS 3315) 6
• Wood product manufacturing (NAICS 3211) 5
• Computer and electronic product manufacturing (NAICS 3344) 5
• Nonmetallic mineral product manufacturing (NAICS 3271) 4
• Chemical manufacturing (NAICS 3259) 4
• Waste management and remediation (NAICS 5622) 4
• Chemical manufacturing (NAICS 3253) 3

Air-emissions stack tests recorded in Alabama, 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.