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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.

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.

Global registry of construction products and materials with an Environmental Product Declaration (EPD). Also contains information from country specifc, regional and worldwide digital EPD databases.

This site is a useful introduction to chemicals in building products. It lists the most commonly found hazardous chemicals in certain building products and the associated health risks.

Bedford Green House is a 118-unit, 13-storey affordable housing development in New York City, with sustainable design and resident health at its heart. The development used HomeFree to inform the selection of building materials, considering human health impacts. This included using solid core doors with a NAUF (No Added Urea Formaldehyde) core and hardwood plywood cabinets which use less binder (and therefore less formaldehyde) than particleboard and MDF.