TOLL FREE (877) 33 PEHSU or (877) 337-3478

Pediatric Environmental Health Specialty Units (PEHSUs) are located in 10 US regions to provide education and consultation for health professionals, public health professionals, family members and others about children's environmental health.
PEHSUs were formed as part of its ongoing cooperative agreements with the Agency for Toxic Substances and Disease Registry (ATSDR) and the U.S. Environmental Protection Agency (EPA).

Improve the health of children in our region with respect to environmental exposures

Inform families, communities, and health care providers in our region regarding environmental hazards, their effects, and practical ways to protect our children's health.

Education and Training


To achieve these goals, we provide the following services:
  • Provide technical assistance to agencies, health care providers, and concerned individuals
  • Health education (e.g. speaking engagements)
  • Provide clinical pediatric environmental health services
  • Support and participate in research
  • Develop educational materials


The Pediatric Environmental Health Specialty Units (PEHSU) form a respected network of experts in children's environmental health. The PEHSU were created to ensure that children and communities have access to, usually at no cost, special medical knowledge and resources for children faced with a health risk due to a natural or human-made environmental hazard. Read more about the Pediatric Environmental Health Specialty Units.

Located throughout the U.S., Canada, and Mexico, PEHSU professionals provide quality medical consultation for health professionals, parents, caregivers, and patients. The PEHSU are also dedicated to increasing environmental medicine knowledge among healthcare professionals around children’s environmental health by providing consultation and training. Finally, the PEHSU provide information and resources to school and community groups to help increase the public’s understanding of children's environmental health


  Alabama        Florida         Georgia         Kentucky         Mississippi
  North Carolina        South Carolina         Tennesse


pehsu We have a diverse team. Our core experts include specialists in developmental pediatrics, medical toxicology, and environmental epidemiology. Our administrator is skilled and experienced in pediatric referrals, especially when children have complex problems that need multidisciplinary evaluation and care. Our partners at Emory span all the pediatric and medical research specialties.
Robert J. Geller, MD, Pediatrician and toxicologist
Emory University School of Medicine

Leslie Rubin, MD, Developmental pediatrician,
Morehouse School of Medicine and Innovative Solutions for Disadvantage and Disability

Claire D. Coles, PhD, Clinical and developmental psychologist,
Emory University, Department of Psychiatry and Behavioral Sciences

Nathan Mutic, MS, MAT, MEd
Emory University, Nell Hodgson Woodruff School of Nursing

Abby Mutic, BS, BSN, MSN
Certified Nurse Midwife and a current doctoral student in the school of nursing at Emory University


Robert Geller currently serves as the Chief of the Emory Pediatrics Service at the Grady Health System/Children's Healthcare of Atlanta at Hughes Spalding campus, as Medical Director of the Georgia Poison Center, and as Director of the Emory Southeast Pediatric Environmental Health Specialty Unit (PEHSU).

Dr. Geller was graduated in 1979 from Boston University School of Medicine. He then pursued his residency and Chief Residency in Pediatrics at the Medical College of Virginia in Richmond, followed by a fellowship in Clinical Pharmacology and Toxicology at the University of Virginia in Charlottesville. He is a fellow of the American Academy of Pediatrics, the American College of Medical Toxicology, and the American Academy of Clinical Toxicology. He has been a member of the Southeast PEHSU since its formation in 2001. He is the author of more than 50 publications, and is one of the editors of the text, Safe and Healthy School Environments. He is the author or co-author of numerous community information sheets and has met with community members at many sites of children’s environmental health concern throughout the Southeastern United States


Leslie Rubin is Research Associate Professor in the Department of Pediatrics at Morehouse School of Medicine, Co-Director of the Southeast Pediatric Environmental Health Specialty Unit at Emory, President and Founder of Innovative Solutions for Disadvantage and Disability, and Principal Investigator of the Healthy Tomorrows Partnership Project – Healthcare Without Walls, a project to create a medical home for homeless children.

He launched the first Break the Cycle Program in 2004-2005. He is dedicated to improving awareness and understanding of the relationship between social and economic disadvantage and disabilities in children.

Since 2000, he has been a Co-Director with the Southeast Pediatric Environmental Health Specialty Unit at Emory University, where he focuses on raising awareness of environmental health disparities and promoting health equity for children - particularly those who are most vulnerable from exposure to adverse environmental factors. In 2012, the American Academy of Pediatrics (AAP) presented Dr. Rubin with the Calvin C. J. Sia Community Pediatrics Medical Home Leadership and Advocacy Award. This award honors pediatricians who have advanced the medical home through practice and advocacy, especially for children with special health care needs. On behalf of ISDD, he received the 21st Annual Community Service Award from Emory University Rollins School of Public Health and The Goizueta Business School of Emory University.


Claire D. Coles, Ph.D., is Professor of Psychiatry and Behavioral Sciences and Pediatrics at Emory University School of Medicine, Atlanta, Georgia, and Director of the Center for Maternal Substance Abuse and Child Development (MSACD). Dr. Coles’ research on the developmental and behavioral effects of prenatal exposure to drugs and alcohol and on the interaction of these effects with the postnatal environment began in 1980 and was among the first to describe many behavioral effects of prenatal exposure in infants, young children and adolescents as well as the effects on brain in young adults. She was also among the first to investigate effects of cocaine exposure on child development. In 1995, Dr. Coles established the only multidisciplinary clinic in the Southeastern United States providing specialized services to individuals prenatally exposed to drugs and alcohol. Currently the Emory Neurobehavior and Exposure Clinic (ENEC) serves more than 200 new patients a year, providing differential diagnosis and behavior evaluation, referral, psychotherapy and educational services. In the addition to training of professionals in the care of children with prenatal exposure as well as environmental stress, MSACD carries out Clinical Research to design and improve interventions for affected individuals and their families, including the MILE (Math Interactive Learning Experience) program and the GoFAR intervention that supports self –regulation and adaptive functioning for children 3 to 9 years. Dr. Coles work has received national and international attention through the publication of numerous articles and books on these topics.

Dr. Coles is the Director of MothertoBaby.Georgia, a Teratology Information Service associated with the National Organization of Teratology Information Specialists that provides free counseling to pregnant and breastfeeding women, their families and the professionals who care for them about the implications of exposure to drugs, alcohol, prescription medications and environmental exposures and a member of the South Eastern Pediatric Environmental Health Specialty Unit (PESHU).

Abby Mutic, BS, BSN, MSN

Abby Mutic is a Certified Nurse Midwife and a current doctoral student in the school of nursing at Emory University. She has years of experience working with women and their families in clinic and hospital settings. Abby is currently studying environmental toxicants that disrupt normal gut bacteria and negatively influence maternal and fetal health. Endocrine disrupting chemicals are harmful in pregnancy, causing lifelong changes to a woman’s microbiome and neurological damage to the fetus. Abby focuses her work with the medical community in this area by investigating environmental health exposures to the fetus during pregnancy and the link to future poor health outcomes.