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In 2020 total emissions of atmospheric pollutants across all businesses of Severstal reduced by 9% from 2019. Severstal Russian Steel reduced its emissions mostly through the introduction of combined blowing in Cherepovets Steel Mill converters, more than four-fold reduction in working hours of Sintering Machines 4–9 without the bed layer at Cherepovets Steel Mill Sinter Plant 2 following the completion of maintenance work, and the sale of Balakovo Long Product Mill in 2020. Severstal Resources reduced pollutant emissions of pollutants in 2020 from the previous period, mostly due to greater methane utilisation in Vorkutaugol mine boilers.
Severstal Resources generates 97% of all waste in Severstal. Most of this amount (over 99.9%) is non-hazardous mining waste such as overburden and tailings. Biotesting confirmed that this waste has low impact on the environment and barely disturbs the ecosystem. There is no widespread use of this waste today, and we use some of it internally (production of crushed stone, road maintenance and dam reinforcement). Increased mining led to a slight (+3%) increase in the amount of waste produced by Severstal Resources.
Cherepovets Steel Mill generates 96.9% of the overall waste from Severstal Russian Steel. In 2020, the amount of waste generated in the steel division reduced by 7.4% from the previous period.
We continuously monitor our use of water resources as well as wastewater and natural water quality. Monitoring results are submitted to regulatory authorities on a quarterly and annual basis. Severstal complies with the conditions of water use and discharge permits and its quotas.
Our businesses use a comprehensive approach to water resource protection, gradually moving towards optimum and responsible use of water in production. For example, Cherepovets Steel Mill (our largest consumer of natural water) has negligible impact on water bodies, at 0.052%, down from 0.068% in 2019.
Fresh water intake for production purposes across Severstal in 2020 was 51.49 million cubic metres.
Water intake from surface bodies reduced by 8.5% to 47,270 thousand cubic metres. Water intake from underground sources remained flat at 1,908 thousand cubic metres. Water intake from alternate sources for production needs reduced by 5% to 533 thousand cubic metres. Water intake from Vodokanal municipal utility reduced by 5.4% to 8,311 thousand cubic metres. Total water intake in 2020 reduced by 6.4% to 66,022 thousand cubic metres. The overall reduction in water intake reflects greater use of storm water collectors.
Effluents and water body protection initiatives