On Wednesday at Greenbuild in Boston, architecture and design firm Perkins+Will unveiled a revamped Precautionary List. First launched in 2008, the list is a compilation of those chemicals found in building materials that are known or suspected to have an adverse impact on human and environmental health. The aim of the project is to help designers and others make more informed decisions about specifying, maintaining, and disposing of the products in their buildings. With this overhaul, the firm and its partners—the environment advocacy nonprofit, the Healthy Building Network, and the real estate departments of Google and Harvard University—hope to make the resource, which is available for anyone to use at no charge, more accessible. “We wanted to develop a site that works for everyone, not just Perkins+Will,” said Mary Dickinson, a firm senior associate at a reception and panel discussion held at the firm’s Boston offices.  

At the event, the collaborators walked guests through the new site. It relays sobering facts such as the number of chemicals in use in the U.S.—more than 82,000—stating that only about 200 of these have been tested for threats to human health and safety. “We are legally allowed to poison ourselves in the U.S.,” said Heather Ann Henriksen, director of Harvard’s office of sustainability.