Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SOUTHERN IONICS INC.
12901 BAY PARK RD, PASADENA, TX, 77507
Parent company: SOUTHERN IONICS INC
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 | Ammonia | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Nitric acid | Total (lbs) | ||
| 2024 | 3,478 | — | — | 3,478 | ||
| 2023 | 3,476 | — | — | 3,476 | ||
| 2022 | 3,430 | — | — | 3,430 | ||
| 2021 | 1,579 | — | — | 1,579 | ||
| 2020 | 166 | — | — | 166 | ||
| 2019 | 231 | — | — | 231 | ||
| 2018 | 243 | — | — | 243 | ||
| 2017 | 288 | — | — | 288 | ||
| 2016 | 271 | — | — | 271 | ||
| 2015 | 176 | — | — | 176 | ||
| 2003 | — | — | 2 | 2 | ||
| 2002 | — | — | 17 | 17 | ||
| 2001 | — | — | 20 | 20 | ||
| 2000 | — | — | 18 | 18 | ||
| 1994 | — | 250 | — | 250 | ||
| 1993 | — | 250 | — | 250 | ||
| 1992 | — | 250 | — | 250 | ||
| 1991 | — | 250 | — | 250 | ||
| 1990 | — | 250 | — | 250 | ||
▎ 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.