EPA Air · stack tests by state, industry and year

Nonmetallic mineral product manufacturing (NAICS 3273): stack tests in Kentucky, 2025

• 9Stack 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 Kentucky source whose primary industry code is NAICS 3273. A facility filing more than one industry code is counted under the first one on its record.

Nonmetallic mineral product manufacturing (NAICS 3273) in Kentucky, other years

• 2026 10
• 2024 5
• 2023 7
• 2022 11
• 2021 5
• 2020 7
• 2019 7
• 2018 6
• 2017 3

Other industries in Kentucky, 2025

• Utilities (NAICS 2211) 45
• Primary metal manufacturing (NAICS 3313) 23
• Waste management and remediation (NAICS 5622) 14
• Pipeline transportation (NAICS 4862) 14
• Chemical manufacturing (NAICS 3251) 10
• Primary metal manufacturing (NAICS 3311) 9
• Chemical manufacturing (NAICS 3252) 9
• Oil and gas extraction (NAICS 2111) 7
• Transportation equipment manufacturing (NAICS 3361) 6
• Electrical equipment and appliance manufacturing (NAICS 3359) 6
• Merchant wholesalers, nondurable goods (NAICS 4247) 6
• Paper manufacturing (NAICS 3221) 6
• Plastics and rubber products manufacturing (NAICS 3261) 5
• Utilities (NAICS 2213) 5
• Beverage and tobacco manufacturing (NAICS 3121) 4
• Food manufacturing (NAICS 3118) 3
• Nonmetallic mineral product manufacturing (NAICS 3272) 3

Air-emissions stack tests recorded in Kentucky, 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.