Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
O&K AMERICAN CORP.
4630 W 54TH ST, CHICAGO, IL, 60632
Parent company: NA
Carcinogen
PBT
— 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 | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Zinc compounds | Lead | Total (lbs) | ||
| 2024 | 2,233 | — | — | 2,233 | ||
| 2023 | 2,117 | — | — | 2,117 | ||
| 2022 | 1,776 | — | — | 1,776 | ||
| 2021 | 1,866 | — | — | 1,866 | ||
| 2020 | 1,686 | — | — | 1,686 | ||
| 2019 | 2,351 | — | — | 2,351 | ||
| 2018 | 2,588 | — | — | 2,588 | ||
| 2017 | 2,483 | — | — | 2,483 | ||
| 2016 | 2,448 | — | — | 2,448 | ||
| 2015 | 2,874 | — | — | 2,874 | ||
| 2014 | 3,179 | — | — | 3,179 | ||
| 2013 | 3,091 | — | — | 3,091 | ||
| 2012 | 3,401 | — | — | 3,401 | ||
| 2011 | 3,036 | — | — | 3,036 | ||
| 2010 | 2,674 | — | — | 2,674 | ||
| 2009 | 1,834 | — | — | 1,834 | ||
| 2008 | 2,775 | — | — | 2,775 | ||
| 2007 | 3,000 | — | — | 3,000 | ||
| 2006 | 2,990 | — | — | 2,990 | ||
| 2005 | 2,181 | — | — | 2,181 | ||
| 2004 | 1,980 | — | — | 1,980 | ||
| 2003 | 1,470 | — | — | 1,470 | ||
| 2002 | 1,410 | — | — | 1,410 | ||
| 2001 | 2,050 | — | 61 | 2,111 | ||
| 2000 | 2,650 | — | 255 | 2,905 | ||
| 1999 | 2,250 | — | 255 | 2,505 | ||
| 1998 | 1,850 | — | 255 | 2,105 | ||
| 1997 | 4,150 | — | 255 | 4,405 | ||
| 1996 | — | 250 | 255 | 505 | ||
| 1995 | 1,500 | 500 | 255 | 2,255 | ||
| 1994 | 1,500 | 500 | 255 | 2,255 | ||
| 1993 | 1,500 | 500 | 10 | 2,010 | ||
| 1992 | 500 | 500 | 10 | 1,010 | ||
| 1991 | 1,500 | — | 10 | 1,510 | ||
| 1990 | 1,000 | 500 | 255 | 1,755 | ||
| 1989 | 1,750 | 500 | 500 | 2,750 | ||
| 1987 | 1,000 | 500 | — | 1,500 | ||
▎ 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.