Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
PENNZOIL-QUAKER STATE CO DBA SOPUS PRODUCTS-PORTLAND
440 N COLUMBIA BLVD, PORTLAND, OR, 97217
Parent company: SHELL OIL 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 | Zinc compounds | Total |
|---|---|---|
| 2008 | 2 | 2 |
| 1994 | 1 | 1 |
| 1993 | 10 | 10 |
| 1992 | 5 | 5 |
| 1989 | 1 | 1 |
| 1988 | 1 | 1 |