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| 2019 | 2018
| 2017
| 2016
| 2015 |
---|
Materials |
Total material usage (t) | 84 081
| 103 332 | 73 738
| 84 913 | 100 767
|
Metals (t) | 67 123
| 85 820 | 55 416
| 59 898 | 73 285 |
Sand (t) | 11 957
| 13 055
| 13 493
| 18 399 | 20 915 |
Chemicals (t) | 1 520
| 1 422 | 1 575
| 1 831*
| 5 025 |
Others (t) | 3 482
| 3 035 | 3 255
| 3 601
| 1 542 |
Energy |
Total energy consumption (TJ) | 1 404
| 1 538
| 1 477
| 1 471
| 1 539 |
Electricity consumption (MWh) | 124 843
| 132 572
| 131 960
| 139 363
| 142 819 |
Purchased electricity (MWh) | 119 092
| 128 878
| 128 176
| 132 771
| 131 501 |
Generated electricity (MWh) | 5 751
| 3 694
| 3 784
| 6 592
| 11 318 |
Sold electricity (MWh) | 32 812
| 32 019
| 28 066
| 23 620
| 21 834 |
Heat consumption (MWh) | 31 429
| 32 937
| 36 890
| 33 542
| 30 161 |
Light fuel oil (t) | 6 089
| 6 223
| 4 327
| 3 918
| 4 801 |
Heavy fuel oils (t) | 3 343
| 3 381 | 3 798
| 3 647
| 3 675 |
Natural gas (t) | 8 064
| 9 783 | 8 393
| 8 614
| 9 750 |
Other fuels (t) | 1 329
| 1 238
| 2 811
| 3 209
| 2 834 |
Water |
Total water consumption (1 000 m³) | 11 268
| 12 607 | 12 749
| 8 444
| 6 971 |
Consumption of domestic water (1 000 m³) | 648
| 652 | 631
| 613
| 703
|
Consumption of cooling water (1 000 m³) | 10 621
| 11 954 | 12 118
| 7 831
| 6 268
|
Emissions |
Emissions of nitrogen oxides (t) | 544
| 545 | 534
| 500
| 553
|
Emissions of carbon dioxide (t) (direct) | 56 568
| 59 949
| 57 998
| 57 355
| 63 441 |
Emissions of carbon dioxide (t) (indirect) | 40 911 | 47 347
| 56 002
| 59 697
| 60 317
|
Emissions of carbon dioxide (t) (indirect - flights) | 164 550
| 208 330 | 155 537**
| 168 571 ** | 39 033
|
Emissions of sulphur oxides (t) | 51 | 55 | 62
| 59
| 63
|
Emissions of total hydrocarbons (t) | 139 | 164 | 131
| 116
| 145
|
Particulates (t) | 7 | 7 | 8 | 9
| 9
|
Emissions of VOC (t) | 37 | 45 | 36
| 30
| 40
|
Waste |
Total waste (t) | 30 287
| 36 025
| 32 580
| 50 020 | 52 037 |
Non-hazardous waste (t) | 26 439
| 31 240 | 28 928
| 42 663 | 44 864 |
Hazardous waste (t) | 3 847
| 4 785
| 3 651
| 7 357 | 7 173
|
208 330
* A substantial error in reporting classifications was corrected in 2016, meaning that the figure is not directly comparable to earlier years.
** Includes indirect emissions from materials, energy, and flights from 2016. Pre-2016 figures
only include emissions from flights.