The University of California San Francisco Pediatric Environmental Health Specialty Unit (UCSF PEHSU) is one of several regional federally funded clinical and educational centers. We provide expert clinical and public health evaluations of children and communities with suspected environmental health problems. In addition, PEHSUs are a source of medical information and advice on environmental conditions that influence children’s health.
PEHSUs are academically based, typically at university medical centers, and are located across the United States, Canada, and Mexico. These PEHSUs form a network that is capable of responding to requests for information throughout North America and offering advice on prevention, diagnosis, management, and treatment of environmentally-related health effects in children.
We have two clinical sites, the University of California, San Francisco and the University of California, Irvine, and serve the geographic area that encompasses Arizona, California, Hawaii, Nevada, the Pacific Islands, and Tribal Nations.
PEHSUs are administered by The Association of Occupational and Environmental Clinics (AOEC).
Read our 2013 Pediatric Environmental Health Speciality Units (PEHSU) Factsheet (pdf).
The UC San Francisco Pediatric Environmental Health Specialty Unit webpages were supported by the Association of Occupational and Environmental Clinics (AOEC) and (in part) by the cooperative agreement award number 1U61TS000118-03 from the Agency for Toxic Substances and Disease Registry (ATSDR).
As an acknowledgment, the U.S. Environmental Protection Agency (EPA) supports the PEHSU by providing funds to ATSDR under Inter-Agency Agreement number DW-75-92301301-0. Neither EPA nor ATSDR endorse the purchase of any commercial products or services mentioned in PEHSU publications.
The contents of this site are for informational purposes only. No content is intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a physician or other qualified health care professional with any questions you may have regarding any medical condition. Never disregard or delay in seeking medical advice based upon something that you have read on this site. If you think you may have a medical emergency, call 911 or a qualified health care professional. Reliance on any information provided on this site is solely at your own risk.
Our Team
Our team includes Pediatricians, Pediatric Clinical Toxicologists, Occupational & Environmental Medicine Physicians, Nurses and Industrial Hygienists and Public Health experts.
Mark Miller MD, MPH
Director of UCSF PEHSU Program,
Assistant Clinical Professor, Pediatrics
John Balmes, MD
Chief of the UCSF Division of
Occupational & Environmental Medicine
Mary Burke, MD
Project Director
Pediatric Mental Health and the Environment
Timur S. Durrani, MD, MPH, MBA
Associate Director
UCSF PEHSU Clinical Services Program
Kent Olson, MD, FACEP, FACMT
Medical Director of the California Poison
Control System, San Francisco Division
Clinical Professor, Medicine & Pharmacy
Patricia Quilan, CIH, MPH
Occupational and Environmental Health Specialist
UCSF Division of Occupational & Environmental Medicine
Christine Zachek, MPH
PEHSU Program Coordinator
Our Partners
UC PEHSU is funded by the US Agency for Toxic Substances Disease Registry and the US Environmental Protection Agency. Funds are administered through the Association of Occupational and Environmental Clinics.
- UCI Department of Pediatrics
- California Poison Control System
- UCSF Department of Pediatrics
- Center for Occupational and Environmental Health at Berkeley, Davis, & UCSF
- UCSF Occupational Medicine Program
- Center for Integrative Research on Childhood Leukemia and the Environment*

