Search

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 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.

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.

Characterizing the degradation behavior of chemicals in the environment is a key component of chemical hazard and risk assessment. Persistence has been successfully characterized for readily and for slowly degradable chemicals using standardized tests, but for the third group of chemicals with intermediate degradability (“middle group”), the assessment is less straightforward. Whether chemicals of this group behave as persistent or not in a given environment depends on environmental factors such as the presence of sorbents that can limit the bioavailability of chemicals.