Environmental Statistics
Symbols and Conventions Used
Percentages
Percentage figures are shown in italics.
Symbols
| The following symbols have been used throughout the publication | ||
| Symbol | Description | |
| . . | = | not available |
| 0 | = | nil |
| - | = | negligible (less than half the final digit shown) |
| r | = | revised since last publication |
| p | = | provisional |
| * | = | multiplied by |
| > | = | greater than |
| >= | = | greater than or equal to |
| < | = | less than |
| <= | = | less than or equal to |
| ppm/b | = | parts per million/billion |
| kg | = | kilogram |
| g | = | gram |
| mg | = | milligram |
| µg | = | microgram |
| ng | = | nanogram |
| km | = | kilometre |
| m | = | metre |
| cm | = | centimetre |
| µm | = | micrometre |
| km² | = | square kilometre |
| ha | = | hectare |
| m² | = | square metre |
| m³ | = | cubic metre |
| l | = | litre |
| ml | = | millilitre |
| Ml | = | megalitre |
| pH | = | measure of acidity/alkalinity |
| TBq | = | terabecquerel |
| GBq | = | gigabecquerel |
| MBq | = | megabecquerel |
| Bq | = | becquerel |
| Gy | = | gray |
| Sv | = | sievert |
| mSv | = | millisievert |
| nSv | = | 10-6 millisieverts |
| µSv | = | microsievert |
Conversion factors
| The following Conversion factors have been used throughout the publication | ||
| Factor | Equivalent | |
| All the above conversion factors are exact. | ||
| 1 tonne | = | 1,000 kilograms |
| 1 hectare | = | 10,000 square metres |
| 1 square kilometre | = | 100 hectares |
| 1 litre | = | 0.001 cubic metres |
| 1 terabecquerel | = | 1012 becquerels |
| 1 gigabecquerel | = | 109 becquerels |
| 1 megabecquerel | = | 106 becquerels |
| 1 nanogram | = | 10-9 grams |
Further Information:
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Page last modified: 16 September 2003
Page published: 10 September 2003