EPA Air · stack tests by state, industry and year

Fabricated metal product manufacturing (NAICS 3328): stack tests in Michigan, 2023

• 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 2023 at a Michigan source whose primary industry code is NAICS 3328. A facility filing more than one industry code is counted under the first one on its record.

Fabricated metal product manufacturing (NAICS 3328) in Michigan, other years

• 2026 3
• 2025 7
• 2024 4
• 2022 6
• 2021 8
• 2020 6
• 2019 7
• 2018 6
• 2017 11

Other industries in Michigan, 2023

• Utilities (NAICS 2211) 39
• Waste management and remediation (NAICS 5622) 33
• Pipeline transportation (NAICS 4862) 19
• Transportation equipment manufacturing (NAICS 3361) 13
• Chemical manufacturing (NAICS 3251) 12
• Utilities (NAICS 2212) 11
• Petroleum and coal products manufacturing (NAICS 3241) 10
• Primary metal manufacturing (NAICS 3311) 9
• Utilities (NAICS 2213) 6
• Educational services (NAICS 6113) 6
• Paper manufacturing (NAICS 3221) 6
• Transportation equipment manufacturing (NAICS 3363) 6
• Nonmetallic mineral product manufacturing (NAICS 3273) 5
• Food manufacturing (NAICS 3113) 4
• Plastics and rubber products manufacturing (NAICS 3261) 4
• Food manufacturing (NAICS 3112) 4
• Wood product manufacturing (NAICS 3212) 3
• Primary metal manufacturing (NAICS 3315) 3

Air-emissions stack tests recorded in Michigan, 2023

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.