Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NIPPON SHOKUBAI AMERICA INDUSTRIES INC. (FORMERLY NA INDUSTR
2651 RIVERPORT RD, CHATTANOOGA, TN, 37406
Parent company: NA
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 | Acrylic acid | Maleic anhydride | Styrene | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Cyclohexane | Total (lbs) |
| 2024 | 659 | 544 | 375 | — | — | 1,585 |
| 2023 | 713 | 650 | 279 | — | — | 1,644 |
| 2022 | 835 | 525 | — | — | — | 1,359 |
| 2021 | 686 | 512 | — | — | — | 1,198 |
| 2020 | 634 | 514 | — | — | — | 1,147 |
| 2019 | 500 | 500 | — | — | — | 1,000 |
| 2018 | 640 | 500 | — | — | — | 1,140 |
| 2017 | 497 | 498 | — | — | — | 994 |
| 2016 | 640 | 518 | — | — | — | 1,158 |
| 2015 | 693 | 508 | — | — | — | 1,201 |
| 2014 | 1,304 | 520 | — | — | — | 1,824 |
| 2013 | 8,721 | 500 | 500 | — | — | 9,721 |
| 2012 | 7,145 | 388 | 678 | — | — | 8,210 |
| 2011 | 8,405 | 517 | 692 | — | — | 9,614 |
| 2010 | 8,761 | 658 | 482 | — | — | 9,901 |
| 2009 | 8,800 | 618 | 700 | — | — | 10,118 |
| 2008 | 12,632 | — | 1,740 | — | — | 14,372 |
| 2007 | 17,011 | — | — | — | — | 17,011 |
| 2006 | 3,375 | — | — | — | — | 3,375 |
| 2005 | 13,585 | — | — | — | — | 13,585 |
| 2004 | 13,888 | — | — | — | — | 13,888 |
| 2003 | 13,888 | — | — | — | — | 13,888 |
| 2002 | 13,888 | — | — | — | — | 13,888 |
| 2001 | 20,255 | — | — | — | 255 | 20,510 |
| 2000 | 20,255 | — | — | — | 255 | 20,510 |
| 1999 | 20,255 | — | — | — | — | 20,255 |
| 1998 | 20,255 | — | — | — | — | 20,255 |
| 1997 | 18,255 | — | — | — | — | 18,255 |
| 1996 | 18,255 | — | — | — | — | 18,255 |
| 1995 | 17,166 | — | — | — | — | 17,166 |
| 1994 | 26,655 | — | — | 1,005 | — | 27,660 |
| 1993 | 56,255 | — | — | 1,005 | — | 57,260 |
| 1992 | 45,750 | — | — | 1,050 | — | 46,800 |
| 1991 | 33,250 | — | — | 1,050 | — | 34,300 |
| 1990 | 23,250 | — | — | — | — | 23,250 |
| 1989 | 1,000 | — | — | — | — | 1,000 |
▎ 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.