Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
EXXONMOBIL OIL CORP PORTLAND TERMINAL
9420 NW ST HELENS RD, PORTLAND, OR, 97231
Parent company: MOBIL OIL CORP
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 | n-Hexane | Toluene | Benzene | Xylene (mixed isomers) | Ethylbenzene | Total (lbs) |
| 2001 | 1,981 | 1,609 | 1,114 | 619 | 124 | 5,586 |
| 2000 | 2,103 | 1,709 | 1,183 | 657 | 131 | 5,783 |
| 1999 | 3,884 | 3,552 | 2,237 | 1,966 | 443 | 12,082 |
| 1998 | 2,964 | 2,712 | 1,707 | 1,501 | 338 | 9,222 |
▎ 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.