Environmental data

    2011 2010 2009 2008 2007
Materials          
  Total material usage (t) 98 142 100 896 129 320 113 772  
  Metals (t) 65 263 69 194 85 351 94 431  
  Sand (t) 23 072 20 739 27 157 12 515  
  Chemicals (t) 7 963 8 500 12 932 4 551  
  Others (t) 1 844 2 462 3 880 2 275  
Energy          
  Total energy consumption (TJ) 1 735 1 916 2 194 2 383 2 595
  Electricity consumption (MWh) 145 078 149 047 164 022 151 169 134 543
  Purchased electricity (MWh) 129 885 131 562 148 780 136 491 122 372
  Generated electricity (MWh) 15 109 17 485 15 242 14 678 12 171
  Sold electricity (MWh) 36 893 39 958 60 881 91 025 77 410
  Heat consumption (MWh) 31 805 41 401 37 060 50 193 40 085
  Light fuel oil (t) 3 409 3 623 5 662 5 432 5 816
  Heavy fuel oils (t) 7 652 9 020 15 652 22 145 16 237
  Natural gas (t) 10 486 12 347 11 792 11 160 22 379
  Other fuels (t) 4 173 3 729 3 326 1 711 1 380
Water          
  Total water consumption (1 000 m³) 9 775 10 292 8 128 11 712 11 160
  Consumption of domestic water (1 000 m³) 830 840 808 622 634
  Consumption of cooling water (1 000 m³) 8 945 9 452 7 320 11 090 10 526
Emissions          
  Emissions of nitrogen oxides (t) 765 826 1 290 1 633 1 348
  Emissions of carbon dioxide (t) (direct) 68 897 80 234 96 749 122 669 101 705
  Emissions of carbon dioxide (t) (indirect) 56 610 58 002 62 211 54 112  
  Emissions of carbon dioxide (t) (indirect - flights) 37 459 35 060 37 882 45 014  
  Emissions of sulphur oxides (t) 265 277 595 840 471
  Emissions of total hydrocarbons (t) 166 211 230 174 294
  Particulates (t) 20 19 28 65 30
  Emissions of VOC (t) 58 61 170 152 79
Waste          
  Total waste (t) 85 153 43 566 55 803 40 209 39 614
  Non-hazardous waste (t) 42 865 38 391 49 946 35 055 32 142
  Hazardous waste (t) 42 288 5 175 5 857 5 154 7 472
  Waste for landfills (t) 27 808 21 682 20 752 6 807 7 749
  Waste for recycling (t) 12 444 14 221 26 332 25 133 21 520
  Waste for incineration (t) 2 614 2 542 2 862 3 115 2 873
  Hazardous waste for landfills (t) 38 054 1 127 852 694 520
  Hazardous waste for recycling (t) 2 082 2 161 2 305 2 220 2 733
  Hazardous waste for incineration (t) 2 152 1 887 2 699 2 240 4 219
Compliance with legislation          
  Disturbances 6 8 8 3 8
  Non-compliance 6 3 0 8 10
  Complaints 5 5 7 15 6
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