The CHAMACOS Study is a longitudinal birth cohort study examining chemicals and other factors in the environment and children’s health.

In 1999-2000, we enrolled 601 pregnant women living in the agricultural Salinas Valley. We are following their children through age 16 to measure their exposures to pesticides and other chemicals and to determine if this exposure impacts their growth, health, and development.

In 2010-2011 we enrolled 300 additional 9-year-old children into the cohort and will be following them also until age 16.  Learn more about the cohort.

“C.H.A.M.A.C.O.S.” stands for Center for the Health Assessment of Mothers and Children of Salinas, and also means “little children” in Mexican Spanish.

The CHAMACOS Study investigates:

The CHAMACOS Study is a Community-University partnership modeled on the tenets of community-based participatory research.

Community Partners:


CHAMACOS Study in the NEWS:

In Utero and Childhood Polybrominated Diphenyl Ether Exposures and Body Mass at Age 7 Years: The CHAMACOS Study” (DOI:10.1289/ehp.1408417) has been selected by the Children’s Environmental Health Network (CEHN) as its July 2015 Article of the Month. These CEHN summaries discuss the potential policy implications of current children’s environmental health research.

Funded By: Duration: Study Contact:
  • The National Institute for Environmental  Health Sciences (NIEHS)
  • U.S. Environmental Protection Agency (EPA)
  • National Institute for Occupational Safety and Health (NIOSH) 2001-2006
  • Environment Innovation Fund, Passport Foundation
Brenda Eskenazi, PhD
Director of CERCH
Print This Page Print This Page