EN9(1) In-use Inventory and Releases of Ozone Depleting Substances
| Calendar Year | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 |
| Number of Releases | no data | 1 | 0 | 3 | 2 | 4 | 0 | 1 |
| Mass released (in kg) | no data | 36 | 0 | 254 | 28 | 79.27 | 0 | 32 |
| (in CFC-11 equivalent kg) | no data | 360 | 0 | 2,092.5 | 1.5 | 275.6 | 0 | 318 |
| In-use mass Halon 1301 (in CFC-11 equiv. kg) | 32,940 | 47,658 | no | no | no | no | no | no |
Release of ozone-depleting substances (ODS) in 2003 was due to a single, accidental release of Halon 1301 fire suppressant. Halons have up to 10 times the ozone depleting potential of standard CFC-11 refrigerant. ODS are regulated provincially and federally and will eventually be phased out. While BC Hydro's existing inventory has been decreasing and will continue to decrease in coming years, ODSs are contained in existing air conditioners and chillers as refrigerants (Freons) and in existing fire suppression systems as extinguishing agents (Halons). In-use amounts of Freons not reported. Forecast amounts in italics.
Last Modified: Jun 29, 2004
