Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NANOPHASE TECHNOLOGIES CORP
1319 MARQUETTE DR, ROMEOVILLE, IL, 60446
Parent company: NA
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 | Zinc compounds | Total (lbs) | ||||
| 2024 | 1,673 | 1,673 | ||||
| 2023 | 1,572 | 1,572 | ||||
| 2022 | 818 | 818 | ||||
| 2021 | 750 | 750 | ||||
| 2020 | 750 | 750 | ||||
| 2019 | 582 | 582 | ||||
| 2018 | 666 | 666 | ||||
| 2017 | 682 | 682 | ||||
| 2016 | 692 | 692 | ||||
| 2015 | 750 | 750 | ||||
| 2014 | 750 | 750 | ||||
| 2013 | 750 | 750 | ||||
| 2012 | 606 | 606 | ||||
| 2011 | 464 | 464 | ||||
| 2010 | 627 | 627 | ||||
| 2009 | 382 | 382 | ||||
| 2008 | 750 | 750 | ||||
| 2007 | 750 | 750 | ||||
| 2006 | 328 | 328 | ||||
| 2005 | 174 | 174 | ||||
| 2004 | 258 | 258 | ||||
| 2003 | 1 | 1 | ||||
| 2002 | 6 | 6 | ||||
| 2001 | 293 | 293 | ||||
▎ 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.