Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
CYPRESS POLYPROPYLENE PLANT UNION CARBIDE CORP.
901 PROSPECT AVE PO BOX 518, NORCO, LA, 70079
Parent company: DOW CHEMICAL CO
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 | Propylene | Ethylene | Zinc compounds | Total |
|---|---|---|---|---|
| 2007 | 35,180 | 1,620 | 19 | 36,819 |
| 2006 | 42,100 | 1,632 | 23 | 43,755 |
| 2005 | 40,600 | 1,318 | 24 | 41,942 |
| 2004 | 33,500 | 1,192 | 7 | 34,699 |
| 2003 | 28,200 | 1,293 | 9 | 29,502 |
| 2002 | 177,800 | 2,532 | 7 | 180,339 |
| 2001 | 164,600 | 2,380 | — | 166,980 |
| 2000 | 169,428 | — | 43 | 169,471 |
| 1999 | 216,400 | — | 23 | 216,423 |
| 1998 | 173,101 | 328 | 98 | 173,527 |
| 1997 | 170,077 | 2,162 | 104 | 172,343 |
| 1996 | 445,952 | 7,597 | 135 | 453,684 |