About the Authors

Jeff Wagner

Roles Conceptualization, Investigation, Methodology, Project administration, Supervision, Visualization, Writing – original draft, Writing – review & editing

jeff.wagner@cdph.ca.gov

Affiliation Outdoor Air Quality Section, Environmental Health Laboratory Branch, California Department of Public Health, Richmond, California, United States of America

Wenhao Chen

Roles Methodology, Writing – review & editing

Affiliation Indoor Air Quality Section, Environmental Health Laboratory Branch, California Department of Public Health, Richmond, California, United States of America

Gordon Vrdoljak

Roles Methodology, Writing – review & editing

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

Competing Interests

The authors have declared that no competing interests exist.