Member, Health Effects Institute Energy Research Committee

SOT Exposure Specialty Section, founding member

Mentor, International Society of Exposure Science

Editorial Board, Journal of Toxicology and Environmental Health

Editorial Board, Environment International

Editorial Board, Journal of Environmental Exposure Assessment

Editorial Board, International Journal of Environmental Research and Public Health

International Society of Exposure Science Ethics Committee

Society of Toxicology, Junior Councilor, SOT Exposure Specialty Section

Member, Maryland Department of Health and Mental Hygiene (DHMH) Cancer Cluster Advisory Committee.

Member, NIH Working Group – Risk Of Bias In Non-randomized Studies of Exposures

HESI RISK21 Science Advisory Board

President, International Society of Exposure Science

World Health Organization Survey Coordinating Committee for the WHO Global Survey of Human Milk for Persistent Organic Pollutants (POPs)

Co-Chair (with Dr. Benjamin Blount, CDC), 2015 Annual Meeting, International Society of Exposure Science

Councilor, International Society of Exposure Science

Board Member, National Swimming Pool Foundation

Associate Editor, Journal of Exposure Science and Environmental Epidemiology

Organizing Committee, Conference on Uncertainty in Risk Analysis

Maryland Pesticide Reporting and Information Workgroup

Maryland’s Children’s Environmental Health and Protection Advisory Council

Maryland Lead Poisoning Prevention Commission

Institute of Medicine Committee on Blue Water Navy Vietnam Veterans and Agent Orange Exposure

US Environmental Protection Agency Science Advisory Board Panel on Perchlorate – Approaches for Deriving Maximum Contaminant Level Goals for Drinking Water

Member of Board of Directors, Advisory Board, and past President: Baltimore Coalition Against Childhood Lead Poisoning, Inc., Coalition for a Lead Safe Environment