Alcoa USA Corp.
Every figure on PlainCarbon is rendered directly from EPA Greenhouse Gas Reporting Program (GHGRP) data, no number is typed in by an editor. This page draws directly on the EPA Greenhouse Gas Reporting Program (GHGRP), no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.
Massena, NY · ST. LAWRENCE COUNTY · NAICS 331313
Data updated May 2026
Annual Emissions History
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 285,852 |
| 2022 | 291,783 |
| 2021 | 291,897 |
| 2020 | 294,649 |
| 2019 | 304,067 |
| 2018 | 294,014 |
| 2017 | 292,536 |
| 2016 | 51,523 |
Facility Insight: Alcoa USA Corp.
Alcoa USA Corp. (EPA GHGRP Facility ID 1012517) reported 286K metric tons of CO2-equivalent in 2023, operating in Massena, NY within ST. LAWRENCE COUNTY. The site is classified under Metals with NAICS code 331313.
The facility has 8 years of reported data on record, covering the 2016–2023 window. Over that period, annual CO2e emissions rose by 454.8%, with the peak observed year showing up to 304K MT CO2e.
Emissions Analysis
Alcoa USA Corp. is a moderate emitter at 286K MT CO2e, typical of mid-sized industrial operations.
Frequently Asked Questions
How much CO2 does Alcoa USA Corp. emit? ▼
Alcoa USA Corp. reported 286K MT CO2e in 2023.
Is Alcoa USA Corp. reducing emissions? ▼
Over 8 reporting years (2016–2023), Alcoa USA Corp.'s emissions have increased by 454.8%. This may reflect expanded operations or increased production.