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| Unit of measurement | 2010 | 2011 | 2012 | 2013 | 2014 | |
|---|---|---|---|---|---|---|
| Gross polluting emissions into the atmosphere, including: | ton | 632.82 | 358.60 | 377.34 | 352.98 | 350.85 |
| solid, of them: | ton | 18.15 | 10.66 | 15.17 | 15.01 | 15.74 |
| solid fuel ashes | ton | 0.16 | 0.37 | — | — | — |
| gas and liquid, of them: | ton | 614.67 | 347.94 | 357.17 | 337.97 | 335.11 |
| sulphur dioxide | ton | 38.03 | 21.87 | 22.27 | 27.81 | 28.92 |
| carbon oxide | ton | 197.52 | 127.22 | 131.97 | 113.86 | 121.36 |
| nitrogen oxide (in terms of NO2) | ton | 285.34 | 145.88 | 144.26 | 142.09 | 138.35 |
| hydrocarbons (without volatile organic components) | ton | 44.40 | 4.41 | 5.02 | 3.40 | 1.15 |
| volatile organic components | ton | 45.66 | 43.94 | 47.23 | 45.27 | 45.31 |
| benzapyrene | ton | 0.0002 | 0.00003 | — | 0.000012 | 0.000012 |
| Hazardous substances caught and neutralized, including: | ton | 6.03 | 5.32 | 4.54 | 4.54 | 11.13 |
| solid | ton | 6.03 | 5.32 | 4.54 | 4.54 | 11.13 |
| Collection and extraction of water, including: | thousand m3 | 236.23 | 245.50 | 206.31 | 212.93 | 197.31 |
| from surface sources | thousand m3 | 58.20 | 65.74 | 23.19 | 22.55 | 23.07 |
| from underground sources | thousand m3 | 48.64 | 48.32 | 43.81 | 41.91 | 45.70 |
| from other sources | thousand m3 | 129.39 | 131.43 | 139.31 | 148.46 | 128.53 |
The main amount of pollutant emissions comes from diesel power plants.
The main amount of water is consumed for drinking needs — 70 %, for production needs — 30 %.
| Waste hazard class | 2010 | 2011 | 2012 | 2013 | 2014 |
|---|---|---|---|---|---|
| 1 class | 5.77 | 8.15 | 6.89 | 6.28 | 7.97 |
| 2 class | 7.85 | 17.79 | 19.57 | 8.16 | 12.21 |
| 3 class | 217.69 | 163.41 | 624.30 | 189.49 | 260.57 |
| 4 class | 6,118.43 | 6,363.14 | 7,386.39 | 4,948.99 | 4718.40 |
| 5 class | 6,743.90 | 2,789.16 | 3,117.90 | 2,863.85 | 3347.55 |
| Total | 13,093.64 | 9,341.65 | 11,155.05 | 8,016.77 | 8,346.70 |
The main amount of the formed waste is of the 4th and 5th hazard classes.
In 2014, there was an increase in the amount of waste compared to the previous years, mainly due to 5th hazard class waste.
Measures to protect the environment are developed in the branches of JSC IDGC of the North-West on an annual basis. The activities are focused on the collection and transfer of