Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
AIR PRODUCTS WEST COAST HYDROGEN - HP-1
3485 PACHECO BLVD, MARTINEZ, CA, 94553
Parent company: AIR PRODUCTS & CHEMICALS INC
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | Methanol | Ammonia | Acetaldehyde | Ethylene | Propylene | Total (lbs) |
| 2024 | 1,304 | 1,304 | — | 20 | 13 | 2,642 |
| 2023 | 1,428 | 407 | 1,092 | 50 | 34 | 3,013 |
| 2022 | 1,261 | 305 | — | 47 | 32 | 1,647 |
| 2021 | 1,407 | 398 | 1,076 | 21 | 14 | 2,937 |
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.