2007 Environmental Performance Indicators

 Definitions and Commentary on our Environmental Performance Indicators can be found in the tabs above.
The figures are also available as Pdf and Excel files below:

Indicator Units 1998
Reference
Year		 2003 2004 2005 2006 2007 % Change
2006-2007		 % Change
2003-2007		 % Change
1998-2007
Production tonnage 106 tonnes product per year 23.40 33.37 33.30 36.36 38.24 41.07 7.4% 23.1% 75.5%
Inputs
Total water withdrawal 106 m3 per year 218 193 175 159 155 157 1.4% -18.6% -28.0%
  m3 per tonne product 9.32 5.78 5.27 4.37 4.05 3.82 -5.7% -33.9% -59.0%
Energy consumption 1015 Joules (PJ) per year 91.0 94.4 90.8 88.0 84.4 85.3 4.1% -6.9% -3.4%
  109 Joules (GJ) per tonne product 3.89 2.83 2.73 2.42 2.21 2.08 -3.1% -24.3% -44.9%
Outputs
Total water discharge 106 m3 per year 165 145 142 123 118 101 -14.4% -30.4% -38.7%
  m3 per tonne product 7.11 4.36 4.26 3.38 3.09 2.46 -20.4% -43.5% -65.4%
Greenhouse gases 106 tonnes CO2 per year 4.90 4.74 4.41 4.31 4.05 4.13 -3.2% -17.3% -20.0%
  kg CO2 per tonne product 212 142 133 118 106 101 -10.3% -33.1% -55.2%
Air acidification potential 103 tonnes SOx equivalents per year 30.8 23.4 21.6 18.4 19.0 21.4 12.2% -8.6% -30.6%
  kg SOx equiv. per tonne product 1.34 0.70 0.65 0.51 0.50 0.52 4.4% -25.7% -61.2%
Ozone depletion potential tonnes R-11 equivalents per year 64.60 9.94 9.58 10.19 8.93 8.82 -1.2% -11.2% -86.3%
  g R-11 equiv. per tonne product 2.76 0.30 0.29 0.28 0.23 0.21 -10.1% -29.5% -92.4%
By-products 106 tonnes per 1.46 1.41 1.47 1.48 1.20 1.07 -11.0% -24.3% -26.8%
  kg per tonne product 62.7 42.3 44.2 40.7 31.4 26.0 -17.1% -38.5% -58.5%
Waste (for disposal) 106 tonne per year 0.51 0.36 0.44 0.44 0.40 0.37 -7.0% 4.7% -27.1%
  kg per tonne product 21.8 10.6 13.2 12.0 10.5 9.1 -13.7% -14.9% -58.4%

 


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