EPA Air · stack tests by state, industry and year

Primary metal manufacturing (NAICS 3314): stack tests in Alabama, 2025

• 30Stack 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 Alabama source whose primary industry code is NAICS 3314. A facility filing more than one industry code is counted under the first one on its record.

Primary metal manufacturing (NAICS 3314) in Alabama, other years

• 2026 19
• 2024 30
• 2023 15
• 2022 19
• 2021 11
• 2020 21
• 2019 15
• 2018 21
• 2017 14

Other industries in Alabama, 2025

• Pipeline transportation (NAICS 4862) 145
• Paper manufacturing (NAICS 3221) 123
• Nonmetallic mineral product manufacturing (NAICS 3273) 47
• Oil and gas extraction (NAICS 2111) 44
• Wood product manufacturing (NAICS 3212) 43
• Utilities (NAICS 2211) 33
• Chemical manufacturing (NAICS 3251) 30
• Nonmetallic mineral product manufacturing (NAICS 3279) 29
• Primary metal manufacturing (NAICS 3311) 27
• Petroleum and coal products manufacturing (NAICS 3241) 26
• Nonmetallic mineral product manufacturing (NAICS 3274) 22
• Wood product manufacturing (NAICS 3211) 11
• Waste management and remediation (NAICS 5622) 10
• Wood product manufacturing (NAICS 3219) 9
• Transportation equipment manufacturing (NAICS 3361) 8
• Primary metal manufacturing (NAICS 3313) 8
• Merchant wholesalers, nondurable goods (NAICS 4247) 8
• Pipeline transportation (NAICS 4869) 6
• Furniture and related product manufacturing (NAICS 3372) 6
• Nonmetallic mineral product manufacturing (NAICS 3271) 5
• Primary metal manufacturing (NAICS 3315) 5
• Chemical manufacturing (NAICS 3259) 4
• Mining and quarrying (NAICS 2123) 3

Air-emissions stack tests recorded in Alabama, 2025

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.