Northern Territory Consolidated Acts Northern Territory Consolidated ActsSCHEDULE 1
Sections 3, 19 and 23
MAXIMUM PERMISSIBLE CONCENTRATION FOR DISCHARGE OF RADIOACTIVE SUBSTANCES IN AIR AND WATER
| First Column | Second Column | Third Column |
| Radioactive substance | Microcuries per millilitre of air | Microcuries per millilitre of water |
| A41 | 5x10-7 | 5x10-4 |
| Ag105 |
1x10-5 | 2 |
| Ag111 | 3x10-5 | 4 |
| Am241 | 3x10-11 | 1x10-4 |
| As76 | 2x10-6 |
0.2 |
| At211 | 3x10-10 | 2x10-6 |
| Au198 | 1x10-7 | 3x10-3 |
| Au199 | 2.5x10-7 | 7x10-3 |
| Ba140+La140 | 6x10-8 | 2x10-3 |
| Be7 | 4x10-6 | 1 |
| C14 | 5x10-7 |
3x10-3 |
| Ca45 | 3x10-8 | 5x10-4 |
| Cd109+Ag109m | 7x10-8 | 7x10-2 |
|
Cel144+Pr144 | 7x10-9 | 4x10-2 |
| C1 36 | 4x10-7 | 9x10-4 |
| Cm242 | 2x10-10 |
9x10-4 |
| Co60 | 1x10-6 | 2x10-2 |
| Cr51 | 8x10-6 | 0.5 |
| Cs137+Ba137m |
2x10-7 | 1.5x10-3 |
| Cu64 | 6x10-6 | 8x10-2 |
| Eu154 | 6x10-9 | 3x10-2 |
| F18 |
1x10-4 | 0.9 |
| Fe55 | 6x10-7 | 4x10-3 |
| Fe59 | 1.5x10-8 | 1x10-4 |
| Ga72 |
3x10-6 | 9 |
| Ge71 | 4x10-5 | 9 |
| H3(HTO or T20) | 2x10-5 | 0.2 |
| Ho166 |
3x10-6 | 23 |
| I131 | 5x10-9 | 3x10-5 |
| Ir190 | 7x10-7 | 1x10-2 |
| Ir192 |
5x10-8 | 9x10-4 |
| K42 | 2x10-6 | 1x10-2 |
| La140 | 1x10-6 | 1 |
| Lu177 |
5x10-6 | 24 |
| Mn56 | 3x10-6 | 0.15 |
| Mo99 | 2x10-3 | 14 |
| Na24 | 2x10-6 |
8x10-3 |
| Nb95 | 4x10-7 | 4x10-3 |
| Ni59 | 2x10-5 | 0.25 |
| P32 | 1x10-7 |
2x10-4 |
| Pb203 | 6.5x10-6 | 0.1 |
| Pd103+Rh103 | 7x10-7 | 1x10-2 |
| Pm147 |
2x10-7 | 1 |
| Po210 (soluble) | 2x10-10 | 3x10-5 |
| Po210 (insoluble) |
7x10-11 | - |
| Pr143 | 7.5x10-7 | 0.4 |
| Pu239 (soluble) | 2x10-12 | 1.5x10-6 |
Pu239 (insoluble) | 2x10-12 | - |
| Ra226+½dr | 8x10-12 | 4x10-8 |
| Rb86 |
4x10-7 | 3x10-3 |
| Re183 | 8x10-6 | 8x10-2 |
| Rh105 | 1x10-6 | 1.5x10-2 |
|
Rn222+dr | 1x10-7 | 2x10-6 |
| Ru106+Rh106 | 3x10-8 | 0.1 |
| S35 | 1x10-6 |
5x10-3 |
| Sc46 | 7x10-8 | 0.4 |
| Sm151 | 1x10-8 | 0.2 |
| Sn113 | 6x10-7 | 0.2 |
Sr89 | 2x10-8 | 7x10-5 |
| Sr90+Y90 | 2x10-10 | 8x10-7 |
| Tc96 | 3x10-6 |
3x10-2 |
| Te127 | 1x10-7 | 3x10-2 |
| Te129 | 4x10-8 | 1x10-2 |
| Th234 | 6x10-7 | 3 |
| Th-natural (insoluble) | 3x10-11 | - |
| Th-natural | 3x10-11 | 4x10-7 |
|
Tm170 | 5x10-8 | 0.25 |
| U233 (soluble) | 1x10-10 | 1.5x10-4 |
| U233 (insoluble) | 1.6x10-11 | - |
| U-natural (soluble) | 1.7x10-11 | 7x10-5 |
|
U-natural (insoluble) | 1.7x10-11 | - |
| V48 | 1x10-6 | 0.5 |
| Xe133 | 4x10-6 |
4x10-3 |
| Xe135 | 2x10-6 | 1x10-3 |
| Y91 | 4x10-8 | 0.2 |
| Zn65 | 2x10-6 |
6x10-2 |
| All other emitters of beta or gamma radiation |
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All other emitters of alpha radiation |
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