About the Authors

Paul English

Contributed equally to this work with: Paul English, Ben Blount

penglish@dhs.ca.gov

Affiliation California Environmental Health Tracking Program, California Department of Public Health, Richmond, California, United States of America

Ben Blount

Contributed equally to this work with: Paul English, Ben Blount

Affiliation Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Michelle Wong

Affiliation California Environmental Health Tracking Program, California Department of Public Health, Richmond, California, United States of America

Lori Copan

Affiliation Environmental Health Investigations Branch, California Department of Public Health, Richmond, California, United States of America

Luis Olmedo

Affiliation Comité Cívico del Valle, Brawley, California, United States of America

Sharyle Patton

Affiliation Commonweal, Bolinas, California, United States of America

Robert Haas

Affiliation Food and Drug Laboratory Branch, California Department of Public Health, Richmond, California, United States of America

Ryan Atencio

Affiliation California Department of Toxic Substances and Control, El Centro, California, United States of America

Juhua Xu

Affiliation Food and Drug Laboratory Branch, California Department of Public Health, Richmond, California, United States of America

Liza Valentin-Blasini

Affiliation Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PE BB LC MW SP. Performed the experiments: RA RH JX LV-B BB. Analyzed the data: PE BB LV-B RH JX. Contributed reagents/materials/analysis tools: RH BB. Wrote the manuscript: PE BB LC MW. Conducted participant recruitment and data collection: LO.