Related Indicators

Detailed information on metrics and targets related to the topic of climate change.

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  • Biological oxygen demand (BOD) in effluents from industrial operations in mg/L

    Related Material Issues

    Change view:

    • wdt_ID Direct biochemical/biological oxygen demand (BOD) in effluents by unit, in mg/L 2019 2020
      1 Suzano 24.00 28.78
      2 Rio Verde 25.00 25.28
      3 Limeira 9.40 13.00
      4 Jacareí 26.11 21.03
      5 Imperatriz 1.37 3.00
      6 Mucuri 6.56 7.07
      7 Aracruz 28.70 36.07
      8 Belém 45.50 32.39
      9 Maracanaú (Fortaleza) 25.00 27.50
      10 Três Lagoas 22.40 14.80

    Additional information:

    Brazilian environmental legislation establishes as a good practice concentrations in the final effluent below 60 mg BOD/L, while some states, like Maranhão for example (where the Imperatriz Unit is located), establish concentrations in the order of 30 mg BOD/L . All industrial units show positive results.

    In 2020, the gross balance of effluents discharged increase by 5.4% compared with 2019. This reflects the 9.9% increase in production in the same period, mainly concentrated in the Imperatriz, Mucuri and Aracruz Units.

    In specific terms (kg of BOD per ton of product), Suzano achieved a reduction of 4.1%—from 0.47 kg/t in 2019 to 0.44 kg/t in 2020. These numbers are within the baseline range of international standards (between 0.3 and 1.5 kg/t) set out by the IPPC (Integrated Pollution, Prevention and Control 2015 – European Commission).