| Site | Plutonium kg 1 |
HEU kg 235U 2 |
LEU tU 3 |
Natural U tU 3 |
Depleted U tU 3 |
|---|---|---|---|---|---|
| Dounreay | +0.361 | +1.100 | +0.001 | NIL | <-0.001 |
| Harwell | +0.003 | +0.004 | NIL | NIL | NIL |
| Winfrith | NIL | NIL | NIL | NIL | NIL |
| Sellafield(4) | -25.200 | <-0.001 | -0.050 | <+0.001 | -13.433 |
| Springfields | NIL | NIL | -1.133 | +3.843 | +0.203 |
| URENCO Capenhurst (5) |
N/A | N/A | <------------- -0.355 ----------> | ||
+ apparent increase
- apparent decrease
- the figures for plutonium are the total amount of all plutonium isotopes.
- the figures for highly enriched uranium (HEU) are for the uranium235 content of uranium enriched to above 20% of that isotope.
- low enriched uranium (LEU), natural uranium and depleted uranium cannot be used to make explosive devices. The published figures include these grades for the sake of completeness.
- Includes Windscale figure for which Sellafield Ltd became the site licensee on 1 April 2008.
- the figure for Urenco Capenhurst is a consolidated figure for Urenco UK Ltd and Urenco Nuclear Stewardship Ltd