Environmental performance

All Boliden sites work preventively with environmental risk assessments and clear action plans. We invest considerable resources in efficient systems, advanced technology, and stable processes throughout our operations. The mitigation hierarchy is used to prevent pollution, manage releases and waste and address potential impacts on human health and the environment.


No significant ­environmental incidents occurred during the year, which is in line with our target.


Boliden’s environmental performance is also presented in the Boliden Annual and Sustainability Report.



Current target to 2030, with base year 2012:

  • Decrease CO2 intensity by 40%.

New targets to 2030, with base year 2021:

  • Reduce absolute CO2 Scope 1&2 emissions by 40%.
  • Reduce absolute CO2 Scope 3 emissions by 30%.
  • 100% copper production on average lower than our Low-Carbon Copper (1.5 t CO2e/t Cu).
  • 100% zinc production on average lower than our Low-Carbon Zinc (1.0 t CO2e/t Zn).

Air pollution

  • No increase of the amount of metals emitted to air.
  • Reduce sulfur dioxide to air.


  • All sites shall have a water management plan by 2025.
  • No increase of the amount of discharged metals to water or N-tot to water.


  • Contribute to increased biodiversity in the areas where Boliden operates by 2030.

Environmental compliance

  • No significant environmental incidents should occur.
  • No permit value deviations or violations should occur.

Waste & resource usage

  • Each sites shall have tailings/slag management in line with GISTM by August 2023 for high-risk dams and August 2025 for all other dams within the scope.

The table shows our main environmental performance indicators that are followed up on a monthly, quarterly or annual basis.

*Global Industry Standard for Tailings Management

Silhouette of Boliden's smelter Kokkola, Europe's second biggest zinc producer.