Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
DUCOMMUN AEROSTRUCTURES
140 E GARDENA BLVD, GARDENA, CA, 90248
Parent company: DUCOMMUN 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 | Nitric acid | Total (lbs) | ||||
| 2024 | 16 | 16 | ||||
| 2023 | 19 | 19 | ||||
| 2022 | 16 | 16 | ||||
| 2021 | 33 | 33 | ||||
| 2016 | 76 | 76 | ||||
| 2014 | 112 | 112 | ||||
| 2012 | 161 | 161 | ||||
| 2011 | 167 | 167 | ||||
| 2010 | 193 | 193 | ||||
| 2009 | 114 | 114 | ||||
| 2008 | 212 | 212 | ||||
▎ 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.