EPA Air · stack tests by state, industry and year

Primary metal manufacturing (NAICS 3314): stack tests in Iowa, 2024

• 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 2024 at a Iowa 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 Iowa, other years

• 2021 6
• 2018 4

Other industries in Iowa, 2024

• Chemical manufacturing (NAICS 3251) 148
• Utilities (NAICS 2211) 69
• Food manufacturing (NAICS 3112) 67
• Nonmetallic mineral product manufacturing (NAICS 3273) 20
• Mining and quarrying (NAICS 2123) 17
• Nonmetallic mineral product manufacturing (NAICS 3274) 14
• Pipeline transportation (NAICS 4862) 11
• Primary metal manufacturing (NAICS 3315) 11
• Chemical manufacturing (NAICS 3253) 9
• Data processing and hosting (NAICS 5182) 9
• Machinery manufacturing (NAICS 3331) 8
• Petroleum and coal products manufacturing (NAICS 3241) 7
• Primary metal manufacturing (NAICS 3311) 7
• Primary metal manufacturing (NAICS 3313) 6
• Food manufacturing (NAICS 3116) 6
• Agriculture and forestry support (NAICS 1151) 6
• Chemical manufacturing (NAICS 3254) 5
• Food manufacturing (NAICS 3111) 4
• Nonmetallic mineral product manufacturing (NAICS 3271) 4
• Fabricated metal product manufacturing (NAICS 3323) 4
• Professional, scientific and technical services (NAICS 5419) 3
• Plastics and rubber products manufacturing (NAICS 3262) 3

Air-emissions stack tests recorded in Iowa, 2024

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.