In this video, Dr. Jessica Weiland, a toxicology fellow at the Agency for Toxic Substances and Disease Registry and practicing physician, explains the growing need for including an environmental exposure history when doing a patient assessment and the resources available to support this measure. When encountering a patient who may have toxic environmental exposures in your practice or community, the Pediatric Environmental Health Specialty Units (PEHSU) are available as a resource to advise you.