In April 2018, I traveled to Denver for the annual Early Childhood Design conference. A standout presentation was one by Paula Burns McEvoy, from Perkins and Will, who spoke about the hidden toxins in commonly used building materials. She's the force behind the Transparency website, which has an abundance of information on building materials and what they contain.
In early childhood spaces that are licensed by the state, there is an inherent conflict between health policy as determined by the Department of Health (i.e., no germs) and the risk to health by some of the chemicals used to protect us - plastics, disinfectants, foam, flame retardants.
So what to do?