Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
BOC INDUSTRIAL GASES
RTE #2 S, CHESTER, WV, 260340247
Parent company: BOC GROUP INC
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 | Dichlorodifluoromethane (CFC-12) | Ammonia | Chlorine | Trichlorofluoromethane (CFC-11) | Total (lbs) | |
| 1992 | 15,923 | 5,000 | — | — | 20,923 | |
| 1991 | 28,000 | 5,240 | 2,650 | 8,000 | 43,890 | |
| 1990 | — | 6,213 | 1,450 | — | 7,663 | |
| 1989 | — | 5,234 | 1,850 | — | 7,084 | |
| 1988 | — | — | 3,450 | — | 3,450 | |
▎ 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.