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-2
1915 SHELL AVE, 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 | Acetaldehyde | Ammonia | Propylene | Ethylene | Total (lbs) |
| 2024 | 17,371 | — | — | 0 | 0 | 17,372 |
| 2023 | 20,425 | 231 | 220 | 0 | 0 | 20,877 |
| 2022 | 18,154 | 223 | 223 | 0 | 0 | 18,601 |
| 2021 | 20,367 | 261 | 257 | 80 | 61 | 21,026 |
▎ 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.