The Pediatric Environmental Health Specialty Unit (PEHSU) at the University of California, Irvine, closed September 2015.

The Region 9 - Western PEHSU program will continue at the University of California, San Francisco. You may call the UCSF PEHSU's toll free number, 866-827-3470, or visit the PEHSU website,, for information regarding children's environmental health.

If you need immediate assistance regarding an exposure, please call the POISON CONTROL CENTERS toll free at 800-222-1222 or contact your local emergency room.


Western PEHSU Program
(toll free)

Poison Control System
(toll free)





This UC PEHSU website was supported by the Association of Occupational and Environmental Clinics (AOEC) and funded (in part) by the cooperative agreement award number 1U61TS000118-03 from the Agency for Toxic Substances and Disease Registry (ATSDR).

Acknowledgement: 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.