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The Six Classes is a visionary program of the Green Science Policy Institute, whose aim is to reduce the use of harmful chemicals in consumer and other products. It focuses on entire classes or groups of chemicals of concern, rather than phasing out problematic chemicals one at a time.

This approach of tackling entire groups of chemicals is needed because more than 80,000 chemicals are used in the U.S. Many have not been well studied and their impacts on human and environmental health are not understood. Even so, some chemicals known to be harmful are commonly found in consumer products. Moreover, when a harmful chemical is phased out, often after years of research and advocacy, the replacement may be a “chemical cousin” with similar structure and potential for harm.

The Six Classes approach can prevent such “regrettable substitutions” and accelerate reductions in toxics use.

In its work on each of the Six Classes, the Green Science Policy Institute convenes scientific experts, motivates needed studies, and publishes research results in peer-reviewed journals. Its findings are communicated widely, as part of its work for science-based change and for moving towards safer chemicals and/or technologies. A key element of the approach is to bring together scientists and decision-makers from business, government, academia, and nonprofits to develop coordinated strategies for reducing the production and use of chemicals of concern.

Chemicals production and consumption is set to double by 2030, from a $5 trillion industry globally in 2017, with production set to increase, mainly in emerging economies. If chemicals production is doubled, chemical pollution must not double as a consequence – rather we should aim to significantly reduce it from current levels.

Current international attempts at the massive undertaking of addressing chemical pollution are not working. For the world to solve the major environmental and health challenges we face, there must be a sustainable chemicals revolution. We can only achieve this through senior-level engagement with the chemical sciences community through an authoritative, intergovernmental science-policy interface.

The Royal Society of Chemistry engaged with scientists in their community to develop the vision for a chemicals strategy, relevant to any nation in principle.  Four pillars were identified on which any chemicals strategy has to be based: education, innovation, circular economy and regulation. National governments must invest in these areas and create a responsible framework of action for chemicals management.

This guidance document aims to give an overview of potential hazardous substances that might occur in construction products and when appearing as waste need attention during renovation and demolition activities. Focus in this guideline is on hazardous substances regulated by EU or international agreements or national legislation.

Although the present legislation restricts the use of many hazardous substances in new building products, there is a considerable concern for compounds present in old construction products, since their presence in construction and demolition waste may limit the recyclability of the material and potentially cause waste management problems. One group of substances that has recently received attention are persistent organic pollutants (POP substances) such as e.g. some brominated flame retardants.

Important characteristic of the construction and building products is the relatively long life span. Because of long lifespan the restricted substances will enter the waste stream many decades after a ban has been placed on their use and they can therefore be found in renovation or demolition waste for a long time. Many of these substances provide important functionality in a wide range of products, e.g. flame retardants.

Besides hazardous substances also degradation in composition and quality aspects (e.g. mould) of construction products needs to be considered.

This document is part of the pre-demolition overall guidance document developed in the PARADE project.

The National Center for Healthy Housing provides a set of policy resources for municipalities to reduce and avoid chemicals of concern in procurement

Full set of resources from the Healthy Hospitals program which includes:

• Step-by-step resources that will make it simpler for any hospital or health care organization to design, implement, and measure the success of their chemical reduction efforts;
• Guidance on healthier flooring, carpet and interiors products;
• Links to criteria documents and lists of products that meet the HH goals.

Green public procurement specification for general construction and flooring adhesives. The goal of the specification is to set a hierarchy of preferences for connecting materials together and to encourage the use of adhesives that have fewer health and environmental hazards in order to create a healthier indoor environment during both construction and building occupancy.