Focus Topics – Environmental matters
Resource-efficient production
Impacts, risks, and opportunities
Impacts
Zehnder’s operations, particularly radiator manufacturing, are resource-intensive, relying on materials like aluminium and steel, whose extraction processes generate significant CO2e emissions and pollution. The production also demands substantial energy and water use, involves hazardous substances, and produces waste, wastewater, and air pollutants such as nitrogen oxides (NOx), sulphur oxides (SOx), and volatile organic compounds (VOC).
While Zehnder’s chroming facilities produce wastewater and sludge, proper treatment ensures environmental safety. In contrast, ventilation system production is less resource-intensive, primarily involving assembly. However, both ventilation systems and electric radiators rely heavily on electronics, requiring scarce resources and potentially conflict minerals, underscoring the importance of sustainable sourcing. The company’s focus on durable materials extends product life cycles, reducing overall resource demand.
Risks and opportunities
Zehnder faces risks tied to resource efficiency, including rising operational costs from stricter emissions and water use regulations, as well as reputational risks if pollution and waste are not properly managed. The resource-intensive nature of radiator manufacturing amplifies these challenges.
However, enhancing resource efficiency offers several opportunities. By streamlining production and reducing waste, Zehnder can cut costs and improve regulatory compliance. Product innovations prioritising energy efficiency, durability, and repairability align with the increasing demand for circular economy solutions, bolstering the company’s market competitiveness.
Management approach
Zehnder prioritises resource efficiency through continuous process monitoring and improvements to reduce waste, water use, and emissions while safeguarding biodiversity. Each production site is responsible for implementing measures and providing regular progress updates to the Sustainability Steering Committee. Regular due diligence includes site certifications, with all European radiator production sites certified under ISO 14001 for environmental management.
Protecting biodiversity
Zehnder recognises the indirect impact its activities can have on ecosystems, particularly from land-use changes and pollution. The company adheres strictly to environmental regulations and participates in local biodiversity initiatives where applicable. Tools like the WWF Biodiversity Risk Filter1 are used to assess potential impacts on ecosystems and to prioritise initiatives. Several production sites are located near protected areas, requiring careful management of pollution and wastewater. The target “Assess our main supply chains for materials that are a risk to biodiversity and define measures to improve hot spots” has been reallocated, as we no longer address this topic in isolation but integrate it within our supply chain risk management. This ensures that biodiversity goals remain a priority and are accounted for, particularly where they are relevant along the value chain.
Reducing pollution
Zehnder’s production processes, particularly in radiator manufacturing, are energy-intensive and produce hazardous emissions. To address this, the company is trialling alternative surface treatments to reduce dependence on chroming, which generates wastewater and sludge. Emissions of NOx, SOx, and VOC are tracked, and Zehnder works to reduce them wherever possible, ensuring full compliance with local environmental regulations.
Water use and wastewater treatment
Our approach to water and wastewater management focuses on reducing freshwater withdrawal and ensuring responsible treatment of wastewater to protect local ecosystems and comply with regulatory standards.
Based on the assessment using the Aqueduct Water Risk Atlas2 (conducted in 2023) 14 of our sites are located in areas with “high” or “extremely high” water stress, where water demand exceeds 60% of available renewable resources. Three of these sites – Manisa (Türkiye), Vaux-Andigny (France), and Dachang (China) – are radiator production sites with water-intensive processes like painting, plating, and cutting. However, Dachang ceased radiator production in July this year, and the water-related targets outlined below are now applicable only to the two remaining sites in high water stress areas. The other 11 flagged sites are offices or production sites that do not involve water-intensive processes.
For radiator production, water is sourced from springs or the drinking water network. We have set a target to reduce freshwater use by increasing water reuse, recycling, and conducting regular leak checks. Wastewater from sites in Manisa (Türkiye), Vaux-Andigny (France), Bolesławiec (Poland), Gränichen (Switzerland), and Lahr (Germany) undergoes pre-treatment before being processed by public sewage plants, with efficiency monitored by public authorities. Independent bodies regularly test our wastewater to ensure compliance with legal standards.
Waste management and recycling
Efforts in radiator production include reducing the use of protective films and other packaging materials, with a focus on increasing the use of recycled and recyclable materials. Additionally, initiatives are in place to lower production rejects and reuse primary products, contributing to overall waste reduction.
1The WWF Biodiversity Risk Filter is a tool developed by the World Wide Fund for Nature (WWF) to help companies identify, assess, and manage biodiversity-related risks in their operations and supply chains by using global data to highlight potential impacts on ecosystems and species.
2The Aqueduct Water Risk Atlas developed by the World Resources Institute is an online global database of local-level water risk indicators and a global standard for measuring and reporting geographic water risk.
Implementation and outlook
To implement the above management approach and policies, we formulated two ambitions which are supported by one or more targets and monitored via specific KPIs.
Targets
Ambition: Significantly reduce our energy consumption, waste generation, use of hazardous substances, polluting air emissions and water consumption
Target: Increase waste recycling
- Status: In 2024, the percentage of waste directed to recycling or recovery decreased to 77%, compared to 84% in 2023. The decline is attributed to improved data accuracy, which provided a clearer picture of waste management practices. While there were slight improvements in actual performance, these have not yet resulted in the significant progress required to meet our target. Despite the decrease, site-specific initiatives demonstrate our commitment. For example, at our production site in Bolesławiec (Poland) we introduced fully cardboard packaging to replace the previously used C-profiles1 and shrink-foil. Additionally, at Filtech, we invested in a slitter rewinder, which not only minimises waste but also optimises inventory by precisely cutting media to the exact dimensions required for filter production.
- Outlook: By 2025, we aim to recover and recycle over 90% of waste from all production sites, diverting it from incineration and landfills. However, as we realised in 2024, this target will be highly challenging to achieve for all production sites due to constraints in materials used for products. This is why we are striving for a group-wide average recycling rate of 90% instead. In the medium term, we are committed to eliminating landfill waste by 2028, with the goal of achieving our first waste-free production site by 2030.
Target: Introduce circular business models including refurbishment to leverage product returns
- Status: Building on 2023 insights, where the absence of coordinated processes limited the potential for product returns to be resold, Zehnder has focused on advancing circular business models. Initial projects for product and component refurbishment in the Comfosystem and Radiator segments have been delivered. The original target of reducing product returns has evolved to include circular business models to encompass the full life cycle and value chain of the portfolio. Additionally, the company continues to explore various return streams, such as products returned due to incorrect sizing, minor damage, or similar issues.
- Outlook: We plan to refine and finalise these business cases by obtaining feedback from our markets and establishing efficient processes for refurbishing and reselling returned products, focusing on feasibility of the proposed solutions and identifying the most viable return streams.
Target: Replace hazardous substances with non-hazardous substances
- Status: In 2024, we began compiling a list of all our hazardous substances used by our radiator production plants in Europe and North America. Challenges emerged at some sites, where existing lists were incomplete, lacked substance numbers, or were only available in local languages. This resulted in a delayed proper assessment in the reporting year. Identifying hazardous substances remains challenging, as they are often embedded within complex chemical compounds. Current efforts are focused on the most impactful areas, prioritising initiatives with the highest potential for improvement.
We also initiated various trials for physical vapour deposition (PVD) coating as a replacement for traditional chrome plating. While PVD coating has become standard for small components, its application to larger parts, such as towel radiators, remains highly complex and resource intensive. Trials are ongoing in collaboration with different manufacturers and suppliers. - Outlook: We will continue gathering detailed information on hazardous substances, evaluating their replaceability, and implementing replacements wherever feasible. While achieving the original target of replacing 30% of replaceable hazardous substances with non-hazardous alternatives by 2025 remains challenging, we are committed to replacing 100% of the technically replaceable substances by 2030.
Target: Reduce polluting air emissions
- Status: Building on our commitment to address non-GHG air emissions – including nitrogen oxides (NOx), sulphur oxides (SOx), persistent organic pollutants (POP), volatile organic compounds (VOC), hazardous air pollutants (HAP), particulate matter (PM), and others – we acknowledge that while specific measures were not actively pursued this year, reductions are anticipated to align naturally with our ongoing efforts to lower CO₂e emissions.
- Outlook: We aim to progress toward our goals of reducing non-GHG air emissions by 20% by 2025 (compared to 2023) and achieving further significant reductions by 2030. It will be essential to establish a robust tracking system next year in line with ESRS requirements, providing insights into our progress and areas for further improvement.
Target: Decrease water withdrawal in production sites located in areas with water stress
- Status: Following the 2023 study to optimise water-intensive processes and assess the financial implications of increased water recycling, we continued to address water withdrawal challenges at our water-stressed sites. In 2024, water withdrawal in water-stressed areas rose by 0.8%, driven mainly by increased production at our site in Manisa (Türkiye), which accounts for the highest water use. Water consumption grew by 38% due to a temporary leakage at this site. However, this site achieved a 14% reduction in water withdrawal per unit produced, despite a 20% production increase. Meanwhile, our site at Vaux-Andigny (France) reduced water withdrawal by 8%, remaining on track as usage is not directly tied to output. Our Dachang (China) site completed the majority of a multi-year project to outsource water-intensive production processes, removing it from the scope of water-relevant reporting, as the remaining activities no longer require significant water use.
- Outlook: Our target remains to reduce water withdrawal by 10% at our facilities in Manisa (Türkiye) and Vaux-Andigny (France) by 2025, using 2023 as the baseline. We are also focused on achieving a 20% reduction in water withdrawal of the entire group by 2028, through increased recycling and efficiency measures.
1C-profiles are C-shaped protective profiles typically made of plastic that safeguard product edges during transport.
Metrics
GRI 303: Water and Effluents 2018
Disclosure 303-3 Water withdrawal
Disclosure 303-3a Total water withdrawal from all areas
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Surface freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | 0.15 | - | n/a | ||
Other surface water withdrawal (> 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Total surface water | ML | 0.15 | - | n/a | ||
Groundwater freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | 9.48 | 9.45 | 0.3 | % | |
Other groundwater withdrawal (> 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Total groundwater | ML | 9.48 | 9.45 | 0.3 | % | |
Seawater freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Other seawater withdrawal (> 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Total seawater | ML | - | - | - | ||
Produced freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | - | 0.33 | –100.0 | % | |
Other produced water withdrawal (> 1,000 mg/L total dissolved solids) | ML | 0.03 | 0.03 | - | ||
Total produced water | ML | 0.03 | 0.36 | –91.1 | % | |
Third-party freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | 68.25 | 76.54 | –10.8 | % | |
Other third-party water withdrawal (> 1,000 mg/L total dissolved solids) | ML | 70.62 | 64.80 | 9.0 | % | |
Total third-party water | ML | 138.86 | 141.34 | –1.8 | % | |
Total freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | 77.87 | 86.32 | –9.8 | % | |
Total other water withdrawal (> 1,000 mg/L total dissolved solids) | ML | 70.65 | 64.83 | 9.0 | % | |
Total water withdrawal | ML | 148.52 | 151.15 | –1.7 | % | |
The unit of measure ML is used as an abbreviation for megalitre and is equal to 1 million litres.
Water withdrawal was measured in most business units, with some exceptions of very small offices where water withdrawal has been calculated based on instructions provided by the Group.
GRI 303: Water and Effluents 2018
Disclosure 303-3 Water withdrawal
Disclosure 303-3b Total water withdrawal from all areas with water stress
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Surface freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Other surface water withdrawal (> 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Total surface water | ML | - | - | - | ||
Groundwater freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | 8.55 | 8.15 | 4.9 | % | |
Other groundwater withdrawal (> 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Total groundwater | ML | 8.55 | 8.15 | 4.9 | % | |
Seawater freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Surface freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Total seawater | ML | - | - | - | ||
Produced freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | - | 0.33 | –100.0 | % | |
Other produced water withdrawal (> 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Total produced water | ML | - | 0.33 | –100.0 | % | |
Third-party freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | 23.36 | 28.41 | –17.8 | % | |
Other third-party water withdrawal (> 1,000 mg/L total dissolved solids) | ML | 70.62 | 64.80 | 9.0 | % | |
Total third-party water | ML | 93.98 | 93.21 | 0.8 | % | |
Total freshwater withdrawal (≤ 1,000 mg/L total dissolved solids) | ML | 31.91 | 36.89 | –13.5 | % | |
Total other water withdrawal (> 1,000 mg/L total dissolved solids) | ML | 70.62 | 64.80 | 9.0 | % | |
Total water withdrawal | ML | 102.53 | 101.69 | 0.8 | % | |
The unit of measure ML is used as an abbreviation for megalitre and is equal to 1 million litres.
Water withdrawal was measured in all business units at locations with water stress.
GRI 303: Water and Effluents 2018
Disclosure 303-4 Water discharge
Disclosure 303-4a Total water discharge to all areas
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Surface freshwater water discharge (≤ 1,000 mg/L total dissolved solids) | ML | 0.13 | - | n/a | ||
Other surface water discharge (> 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Groundwater freshwater discharge (≤ 1,000 mg/L total dissolved solids) | ML | 6.84 | - | n/a | ||
Other groundwater discharge (> 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Seawater freshwater discharge (≤ 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Other seawater discharge (> 1,000 mg/L total dissolved solids) | ML | - | - | - | ||
Third-party freshwater discharge (≤ 1,000 mg/L total dissolved solids) | ML | 49.31 | 47.05 | 4.8 | % | |
Other third-party discharge (> 1,000 mg/L total dissolved solids) | ML | 55.91 | 69.45 | –19.5 | % | |
Total freshwater discharge (≤ 1,000 mg/L total dissolved solids) | ML | 56.28 | 47.05 | 19.6 | % | |
Total other water discharge (> 1,000 mg/L total dissolved solids) | ML | 55.91 | 69.45 | –19.5 | % | |
Total water discharge | ML | 112.19 | 116.50 | –3.7 | % | |
The unit of measure ML is used as an abbreviation for megalitre and is equal to 1 million litres.
Water discharge was often not measured and has thus been calculated by the business units, based on clear instructions provided by the Group.
GRI 303: Water and Effluents 2018
Disclosure 303-4 Water discharge
Disclosure 303-4c Total water discharge to all areas with water stress
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Total freshwater discharge (≤ 1,000 mg/L total dissolved solids) | ML | 20.22 | 11.99 | 68.6 | % | |
Total other water discharge (> 1,000 mg/L total dissolved solids) | ML | 54.47 | 67.09 | –18.8 | % | |
Total water discharge | ML | 74.69 | 79.08 | –5.6 | % | |
The unit of measure ML is used as an abbreviation for megalitre and is equal to 1 million litres.
Water discharge was often not measured and has thus been calculated by the business units, based on clear instructions provided by the Group.
GRI 303: Water and Effluents 2018
Disclosure 303-5 Water consumption
Disclosure 303-5a Total water consumption from all areas
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Total water consumption | ML | 36.33 | 34.65 | 4.8 | % | |
The unit of measure ML is used as an abbreviation for megalitre and is equal to 1 million litres.
Water consumption was always calculated by the business units, based on clear instructions provided by the Group. The assumption was that all business units consume water in some way.
GRI 303: Water and Effluents 2018
Disclosure 303-5 Water consumption
Disclosure 303-5b Total water consumption from all areas with water stress
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Total water consumption | ML | 27.84 | 22.61 | 23.1 | % | |
The unit of measure ML is used as an abbreviation for megalitre and is equal to 1 million litres.
Water consumption was always calculated by the business units, based on clear instructions provided by the Group. The assumption was that all business units consume water in some way.
GRI 305: Emissions 2016
Disclosure 305-7 Nitrogen oxides (NOx), sulphur oxides (SOx), and other significant air emissions
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | |
Significant air emissions of nitrogen oxides (NOx) | kg | 18,660 | 21,279 | –12.3 | % |
Significant air emissions of sulphur oxides (SOx) | kg | 439 | 450 | –2.3 | % |
Significant air emissions of persistent organic pollutants (POP) | kg | 0 | 0 | - | |
Significant air emissions of volatile organic compounds (VOC) | kg | 4,106 | 4,152 | –1.1 | % |
Significant air emissions of hazardous air pollutants (HAP) | kg | 1 | 1 | - | |
Significant air emissions of particulate matter (PM) | kg | 712 | 897 | –20.7 | % |
Significant air emissions of other standard categories of air emissions identified in relevant regulations: carbon monoxide (CO) | kg | 35,104 | 35,210 | –0.3 | % |
Emission factors for GRI 305-7 are taken from the EMEP/EEA air pollutant emission inventory guidebook 2019.
Emissions were calculated in Zehnder’s Hyperion Financial Management system (consolidation tool) and aggregated in Microsoft Excel.
The 2023 figures have been restated due to a calculation error. The original reported figures for 2023 were 25,946 kg NOx, 16,845 kg SOx, 16,355 kg POP, 9,368 kg VOC, 16,360 kg HAP, 3,694 kg PM and 81,408 kg CO.
GRI 306: Waste 2020
Disclosure 306-3 Waste generated
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Total waste – heavy metals | t/year | - | 0.05 | –100.0 | % | |
Total waste – batteries | t/year | 2.16 | 1.57 | 37.4 | % | |
Total waste – electronics | t/year | 21.06 | 10.02 | 110.1 | % | |
Total waste – fluorescent lamps | t/year | 0.34 | 0.71 | –52.7 | % | |
Total waste – used oil & emulsions | t/year | 37.66 | 53.63 | –29.8 | % | |
Total waste – solvents & chemicals | t/year | 31.29 | 46.32 | –32.5 | % | |
Total waste – printing ink/toners | t/year | 2.08 | 1.52 | 37.0 | % | |
Total waste – quartz sand/powder | t/year | 31.29 | 41.22 | –24.1 | % | |
Total waste – hazardous sludge | t/year | 84.35 | 89.25 | –5.49 | % | |
Total waste – other hazardous waste | t/year | 169.56 | 67.77 | 150.2 | % | |
Total hazardous waste | t/year | 379.79 | 312.06 | 21.7 | % | |
Total waste – metals | t/year | 3,863.81 | 4,082.73 | –5.4 | % | |
Total waste – plastics | t/year | 409.89 | 733.40 | –44.1 | % | |
Total waste – paper & cardboard | t/year | 751.28 | 1,668.26 | –55.0 | % | |
Total waste – glass | t/year | 1.75 | 0.23 | 676.1 | % | |
Total waste – wood treated | t/year | 343.61 | 370.19 | –7.2 | % | |
Total waste – wood untreated | t/year | 190.80 | 231.47 | –17.6 | % | |
Total waste – residual non-hazardous waste | t/year | 1,020.42 | 1,110.63 | –8.1 | % | |
Total non-hazardous waste | t/year | 6,581.57 | 8,196.90 | –19.7 | % | |
Total weight of waste | t/year | 6,961.36 | 8,508.96 | –18.2 | % | |
GRI 306: Waste 2020
Disclosure 306-4 Waste diverted from disposal
Disclosure 306-4a Total weight of waste diverted from disposal
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Total waste diverted from disposal – heavy metals | t/year | - | - | - | ||
Total waste diverted from disposal – batteries | t/year | 1.94 | 1.45 | 34.0 | % | |
Total waste diverted from disposal – electronics | t/year | 11.97 | 9.85 | 21.5 | % | |
Total waste diverted from disposal – fluorescent lamps | t/year | 0.26 | 0.44 | –40.9 | % | |
Total waste diverted from disposal – used oil & emulsions | t/year | 8.60 | 26.29 | –67.3 | % | |
Total waste diverted from disposal – solvents and chemicals | t/year | 10.74 | 12.12 | –11.4 | % | |
Total waste diverted from disposal – printing ink/toners | t/year | 1.87 | 1.31 | 42.9 | % | |
Total waste diverted from disposal – quartz sand/powder | t/year | 1.12 | 27.77 | –96.0 | % | |
Total waste diverted from disposal – hazardous sludge | t/year | 25.95 | 25.02 | 3.7 | % | |
Total waste diverted from disposal – other hazardous waste | t/year | 14.21 | 13.21 | 7.5 | % | |
Total hazardous waste diverted from disposal | t/year | 76.66 | 117.47 | –34.7 | % | |
Total waste diverted from disposal – metals | t/year | 3,861.38 | 4,082.73 | –5.4 | % | |
Total waste diverted from disposal – plastics | t/year | 317.49 | 704.49 | –54.9 | % | |
Total waste diverted from disposal – paper & cardboard | t/year | 743.93 | 1,635.99 | –54.5 | % | |
Total waste diverted from disposal – glass | t/year | 1.55 | 0.03 | 5,978.4 | % | |
Total waste diverted from disposal – wood treated | t/year | 96.37 | 155.04 | –37.8 | % | |
Total waste diverted from disposal – wood untreated | t/year | 164.22 | 205.33 | –20.0 | % | |
Total waste diverted from disposal – residual non-hazardous waste | t/year | 121.22 | 273.68 | –55.7 | % | |
Total non-hazardous waste diverted from disposal | t/year | 5,306.16 | 7,057.28 | –24.8 | % | |
Total weight of waste diverted from disposal | t/year | 5,382.83 | 7,174.75 | –25.0 | % | |
Total waste diverted from disposal vs. total waste | % | 77.32 | 84.32 | –7.0 | pp | |
GRI 306: Waste 2020
Disclosure 306-4 Waste diverted from disposal
Disclosure 306-4b Total weight of hazardous waste diverted from disposal
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Hazardous waste prepared for reuse | t/year | 4.68 | 11.26 | –58.4 | % | |
Hazardous waste recycled | t/year | 46.02 | 79.71 | –42.3 | % | |
Hazardous waste treated with other recovery operations | t/year | 25.96 | 26.50 | –2.0 | % | |
Total hazardous waste diverted from disposal | t/year | 76.66 | 117.47 | –34.7 | % | |
GRI 306: Waste 2020
Disclosure 306-4 Waste diverted from disposal
Disclosure 306-4c Total weight of non-hazardous waste diverted from disposal
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Non-hazardous waste prepared for reuse | t/year | 316.41 | 481.94 | –34.3 | % | |
Non-hazardous waste recycled | t/year | 4,914.33 | 6,283.70 | –21.8 | % | |
Non-hazardous waste treated with other recovery operations | t/year | 75.42 | 291.63 | –74.1 | % | |
Total non-hazardous waste diverted from disposal | t/year | 5,306.16 | 7,057.28 | –24.8 | % | |
GRI 306: Waste 2020
Disclosure 306-5 Waste directed to disposal
Disclosure 306-5a Total weight of waste directed to disposal
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Total waste directed to disposal – heavy metals | t/year | - | 0.05 | –100.0 | % | |
Total waste directed to disposal – batteries | t/year | 0.22 | 0.12 | 77.9 | % | |
Total waste directed to disposal – electronics | t/year | 9.09 | 0.17 | 5,152.9 | % | |
Total waste directed to disposal – fluorescent lamps | t/year | 0.08 | 0.27 | –72.0 | % | |
Total waste directed to disposal – used oil & emulsions | t/year | 29.06 | 27.34 | 6.3 | % | |
Total waste directed to disposal – solvents & chemicals | t/year | 20.55 | 34.21 | –39.9 | % | |
Total waste directed to disposal – printing ink/toners | t/year | 0.21 | 0.21 | - | ||
Total waste directed to disposal – quartz sand/powder | t/year | 30.17 | 13.44 | 124.4 | % | |
Total waste directed to disposal – hazardous sludge | t/year | 58.40 | 64.22 | –9.1 | % | |
Total waste directed to disposal – other hazardous waste | t/year | 155.35 | 54.56 | 184.8 | % | |
Total hazardous waste directed to disposal | t/year | 303.13 | 194.59 | 55.8 | % | |
Total waste directed to disposal – metals | t/year | 2.43 | - | n/a | ||
Total waste directed to disposal – plastics | t/year | 92.39 | 28.91 | 219.6 | % | |
Total waste directed to disposal – paper & cardboard | t/year | 7.35 | 32.27 | –77.2 | % | |
Total waste directed to disposal – glass | t/year | 0.20 | 0.20 | - | ||
Total waste directed to disposal – wood treated | t/year | 247.24 | 215.15 | 14.9 | % | |
Total waste directed to disposal – wood untreated | t/year | 26.58 | 26.14 | 1.7 | % | |
Total waste directed to disposal – residual non-hazardous waste | t/year | 899.20 | 836.95 | 7.4 | % | |
Total non-hazardous waste directed to disposal | t/year | 1,275.40 | 1,139.62 | 11.9 | % | |
Total weight of waste directed to disposal | t/year | 1,578.53 | 1,334.21 | 18.3 | % | |
GRI 306: Waste 2020
Disclosure 306-5 Waste directed to disposal
Disclosure 306-5b Total weight of hazardous waste directed to disposal
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Hazardous waste incinerated (with energy recovery) | t/year | 143.58 | 98.36 | 46.0 | % | |
Hazardous waste incinerated (without energy recovery) | t/year | 23.41 | 2.60 | 800.3 | % | |
Hazardous waste disposed of in a landfill | t/year | 17.84 | 46.66 | –61.8 | % | |
Hazardous waste disposed of in other disposal operations | t/year | 118.30 | 46.97 | 151.9 | % | |
Total hazardous waste directed to disposal | t/year | 303.13 | 194.59 | 55.8 | % | |
GRI 306: Waste 2020
Disclosure 306-5 Waste directed to disposal
Disclosure 306-5c Total weight of non-hazardous waste directed to disposal
Indicator description | Unit of measure | 2024 | 2023 | Change from prior year | ||
Non-hazardous waste incinerated (with energy recovery) | t/year | 729.89 | 612.19 | 19.2 | % | |
Non-hazardous waste incinerated (without energy recovery) | t/year | 69.84 | 49.10 | 42.2 | % | |
Non-hazardous waste disposed of in a landfill | t/year | 429.35 | 470.31 | –8.7 | % | |
Non-hazardous waste disposed of in other disposal operations | t/year | 46.33 | 8.03 | 477.1 | % | |
Total non-hazardous waste directed to disposal | t/year | 1,275.40 | 1,139.62 | 11.9 | % | |