Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
ZOLTEK CORP
11 MISSOURI RESEARCH PARK, SAINT CHARLES, MO, 63304
Parent company: ZOLTEK COS INC.
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Ammonia | Cyanide compounds | Hydrogen cyanide | Total |
|---|---|---|---|---|
| 2014 | 9,947 | — | 19 | 9,966 |
| 2013 | 5,627 | — | 250 | 5,877 |
| 2012 | 5,058 | — | 306 | 5,364 |
| 2011 | 4,843 | — | 302 | 5,145 |
| 2010 | 4,547 | — | 500 | 5,047 |
| 2009 | 4,507 | — | 500 | 5,007 |
| 2008 | 7,431 | — | 1,291 | 8,722 |
| 2007 | 10,008 | — | 2,309 | 12,317 |
| 2006 | 3,947 | — | 1,057 | 5,004 |
| 2005 | 2,375 | 625 | — | 3,000 |
| 2004 | 2,219 | 716 | — | 2,935 |
| 2003 | 2,939 | 446 | — | 3,385 |
| 2002 | 2,365 | 848 | — | 3,213 |
| 2001 | 3,479 | 468 | — | 3,947 |
| 2000 | 4,923 | 940 | — | 5,863 |
| 1999 | 8,021 | 1,610 | — | 9,631 |
| 1998 | 13,480 | 2,602 | — | 16,082 |