US STEEL - IRVIN WORKS
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West Mifflin, PA · ALLEGHENY COUNTY · NAICS 331110
Data updated May 2026
Annual Emissions History
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 362,318 |
| 2022 | 316,989 |
| 2021 | 384,878 |
| 2020 | 371,239 |
| 2019 | 564,950 |
| 2018 | 402,678 |
| 2017 | 366,050 |
| 2016 | 409,379 |
| 2015 | 342,544 |
| 2014 | 401,172 |
| 2013 | 388,094 |
| 2012 | 366,249 |
| 2011 | 425,359 |
Facility Insight: US STEEL - IRVIN WORKS
US STEEL - IRVIN WORKS (EPA GHGRP Facility ID 1000802) reported 362K metric tons of CO2-equivalent in 2023, operating in West Mifflin, PA within ALLEGHENY COUNTY. The site is classified under Metals with NAICS code 331110.
The facility has 13 years of reported data on record, covering the 2011–2023 window. Over that period, annual CO2e emissions declined by 14.8%, with the peak observed year showing up to 565K MT CO2e.
Emissions Analysis
US STEEL - IRVIN WORKS is a moderate emitter at 362K MT CO2e, typical of mid-sized industrial operations.
Frequently Asked Questions
How much CO2 does US STEEL - IRVIN WORKS emit? ▼
US STEEL - IRVIN WORKS reported 362K MT CO2e in 2023.
Is US STEEL - IRVIN WORKS reducing emissions? ▼
Over 13 reporting years (2011–2023), US STEEL - IRVIN WORKS's emissions have decreased by 14.8%. This suggests meaningful progress in emissions reduction.