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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.

Per- and polyfluoroalkyl substances (PFAS) are a large class of thousands of synthetic chemicals that are used throughout society. However, they are increasingly detected as environmental pollutants and some are linked to negative effects on human health.

This page from the European Chemicals Agency provides background on PFAS chemicals and their use in a number of products, including construction materials, paints and chrome plating.

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.

The Green Science Policy Institute's page on building materials, linking to background information on issues with PFAS, and halogenated flame retardants in insulation.

Legislation is not in place in every country to manage chemicals of concern.  The OECD Compare your Country Interactive mapping tool shows where legislation is in place and in development to manage industrial and consumer chemicals. 

The tool also includes a series of country profiles, providing details of legislation, the year of adoption and the approximate number of industrial chemicals assessed per year.

Safer States is an alliance of diverse environmental health organizations and coalitions from across the United States committed to building a healthier world.  The website features an interactive map showing chemical-related policies, including those related to building materials.  A Bill Tracker provides further detail of the action taken by individual states to regulate chemicals, covering PFAS, toxic flame retardants, heavy metals, BPA and phthalates.

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.

This study aims to predict human exposure to pollutants and heating load in buildings by developing a numerical model coupling heat and chemical transfers in the building envelope. The study characterizes the effect of temperature and air renewal rate on chemical emissions from building materials and human exposure. The results show that increasing indoor temperature by 10°C doubles the maximum indoor air concentration of volatile and semi-volatile organic compounds, leading to increased human exposure. The study also finds that higher air renewal rates lead to smaller intake fractions of pollutants from building materials. The study highlights the need to guide early design choices towards a good compromise between human indoor exposure and heating load, especially with the increasing emphasis on energy-efficient building design.

This is a pre-print manuscript pending publication in open access scientific journals.

This document has been developed within the framework of the Global Environment Facility (GEF) project ID: 9771 on Global Best Practices on Emerging Chemical Policy Issues of Concern under the Strategic Approach to International Chemicals Management (SAICM).