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Abstract: Based on a review of 2012 and 2016 data in the Nordic chemical database, SPIN, this paper is an assessment of the usage of REACH’s Substances of Very High Concern (SVHC) and Denmark’s List over Undesirable Substances (LOUS) chemicals in the building industry in Denmark. The paper is a status update of the 2016 Danish Environmental Agency’s report of the usage of hazardous substances in sustainable buildings, based on 2012 data from SPIN. The analysis focuses on change in tonnage of usage of chemicals found in twelve different construction product categories in SPIN, crosschecked with substances from the SVHC and the LOUS lists. The usage of some hazardous substances in certain usage categories has reduced from 2012 to 2016.

There is an overall trend indicating an increase of undesirable chemical in construction articles and preparations, which poses serious challenges for a functioning circular built environment. Findings indicate which construction categories and which chemicals are of particular concern for the current construction market in Denmark. The results underscore the essential need for transparency in building product content, in order for design professionals and contractors to make decisions that support the future use of the material or building element.

UNEP's new Eco-innovation Building Materials Supplement was created to respond to the building material sector's need for more guidance in building resilient, competitive, and sustainable business models for SMEs. Designed together with Bioregional, pilot implementation support of the National Cleaner Production Centre (NCPC) Sri Lanka and to be read alongside UNEP's Eco-innovation Manual, the supplement provides specific examples, learning case studies, and advice on applying the eco-innovation methodology within the building materials value chain.

This study, commissioned by DG Environment for the European Commission and produced by Wood and Ramboll.  The objective was to assess the use of PFASs and fluorine-free alternatives in textiles, upholstry, carpets, leather and apparel, including specific focus on volumes of use, technical function, and emissions.

Non-fluorine alternatives considered were hydrocarbons, silicones, dendrimers, polyurethane, nanomaterials, and alternative technologies.  The study makes recommendations for policy, including a REACH restriction on the placing on the market and use of these products that contain any PFAS, and a listing under the Stockholm Convention.  It is also recommended in the report that a restriction could be combined with voluntary industry measures and provisions in public procurement to encourage substitution of PFAS before mandatory legislation is introduced.

This case study highlights three main achievements resulting from the EPR pilot that tested potential collection channels, determined local e-waste treatment costs, and promoted environmentally sound e-waste management and gender equality in Nigeria's electronics sector.

1. Setting an EPR financial mechanism by understanding local collection and recycling costs and estimating the EPR fee based on local costs.
2. Reducing the health and environmental risks associated with e-waste management practices by ensuring hazardous materials like mercury and Persistent Organic Pollutants in e-waste are recycled in an environmentally sound manner.
3. Improving the health, security, and safety of waste management workers, including women who face various risks in the sector.

The study concludes with a summary of the next steps and key learnings that emphasize the importance of environ-mentally and socially responsible e-waste management with a focus on gender equality in the sector.

The presence of hazardous chemicals in products makes the transformation to circularity more challenging. This report describes UNDP's interventions on Chemicals and Waste Management which aim to achieve circularity across different industries, inluding construction.

This report provides an overview of the current status and conditions of the Circular Economy in the electronics value chain in the Latin America and the Caribbean (LAC) region, identifies key areas of concern, provides appropriate recommendations, and proposes priority actions to improve circularity of the sector. The recommendations and roadmap focus on the individual life cycle stages of the electronics value chain, as well as on aspects that cut across the value chain. The transition towards a more circular electronics sector in Latin America and the Caribbean (LAC) would require a holistic and coordinated approach to progress toward a more circular electronics value chain in the CEE region.

This publication was prepared under the framework of the Global Environment Facility (GEF) full-sized project 9771: Global best practices on emerging chemical policy issues of concern under the Strategic Approach to International Chemicals Management (SAICM). This project is funded by the GEF, implemented by UNEP and executed by the SAICM Secretariat.

Strengthening legal efforts in Nigeria is crucial for successful implementation of Extended Producer Responsibility (EPR) systems. By having the National Environmental Standards and Regulations Enforcement Agency of Nigeria (NESREA) having the enforcing EPR laws create a more sustainable and accountable e-waste sector.

Developing and updating EPR legistlations helps clarify the different responsibilities and enforce producers to comply with their obligations and responsibility. However, effective EPR implementation will require further law enforcement measures.
The case study outlines two achievements of the "Circular Economy Approaches for The Electronics Sector In Nigeria" project towards establishing a stronger legal system in Nigeria:

• The development and gazette of the EPR Guidance document in 2020: the guidance defines the roles and responsibilities of the key public and private stakeholders, the product categories to be covered by the EPR scheme, and the collection and recycling targets.
• The amendment of the National Environmental (Electrical and Electronic Sector) Regulations in 2022: which legally requires EPR subscriptions and prohibits suboptimal treatment of e-waste.

The study concludes with a summary of key lessons and next steps, emphasizing the importance of enforcing EPR laws, engaging stakeholders, raising public awareness, and collaborating with regional and international partners.

The establishment of an EPR database is critical in operationalising and formalising the management of EPR-related data. The EPR database allows e-waste flow tracking and EPR fee and recovery rate calculation while ensuring producers' information confidentiality and helping prevent counterfeiting activities.

The case study outlines the project’s efforts towards establishing this automation system in Nigeria in the following areas:

• Developing the EPR database: to manage producers’ market share data, calculate and collect the EPR fees.
• Registering Producers and products in the database: To ensure electronic and electrical producers are registered and to oversee the EPR operation.
• Securing the database: Enhancing producers' trust in the database and ensuring its confidentiality.

The study concludes with a summary of next steps and key learnings, emphasizing the importance of law enforcement, database registration, secure systems for producers, and encouraging the participation of producers in the database registration.