Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NORTEL NORTHERN TELECOM
4001 E CHAPELL HILL NELSON HWY, RESEARCH TRIANGLE PARK, NC, 27709
Parent company: NORTHERN TELECOM LTD
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 | Freon 113 (CFC-113) | 1,2-Dichloroethylene | Methanol | 1,1,1-Trichloroethane | Lead | Total (lbs) |
| 1998 | — | — | — | — | — | 3 |
| 1997 | — | — | — | — | 3 | 3 |
| 1996 | — | — | — | — | 3 | 3 |
| 1995 | — | — | — | — | 1 | 1 |
| 1993 | — | — | 8,800 | — | 3 | 8,803 |
| 1992 | — | — | 12,200 | — | — | 12,200 |
| 1990 | 182,650 | 68,800 | 12,123 | — | — | 263,573 |
| 1989 | 264,500 | 95,830 | 18,660 | — | — | 378,990 |
| 1988 | 410,000 | — | 25,500 | 9,740 | — | 445,240 |
| 1987 | 510,000 | — | — | — | — | 510,000 |
▎ 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.