Department of Epidemiology 1983-85 Ph.D. School of Public Health

Adjunct Professor – Environmental Occupational Health 2000-present Milken Institute School of Public Health The George Washington University Washington, D.C.

Adjunct Professor 2023-present Department of Pediatrics Georgetown University School of Medicine Washington, D.C.

Reviewer of The New England Journal of Medicine，Journal of Pediatrics，Environmental Health，Environmental Research，Environmental Health Perspectives，Journal of the American Medical Association，Academic Pediatrics，American Journal of Public Health，Pediatrics，  Epidemiologic Reviews，The Journal of Climate Change and Health

Grant Reviewer: NIEHS Environmental Health Sciences Review Committee (ad hoc reviewer) 9-04

Associate Editor: Current Problems in Pediatrics and Adolescent Health Care, 2004- present Associate Editor: Environmental Health, 2019-2021, Deputy Editor, 2021-2023, Editor in-Chief, 2024-present

Editorial Board: Journal of Climate Change and Health, 2021-present

Council on Environmental Health and Climate Change Executive Committee 2023-present

Environment and Child Health International Birth Cohort Group, Coordinator, 2011- 2015, member 2016-present

International Joint Commission, Health Professionals Advisory Board, U.S. member, 2019-present

International Pediatric Association, Committee on Environmental Health, Technical Advisor and Chair, 2003-2017, Strategic Advisory Group on Environmental Health, Chair, 2019-2020, Co-Chair, 2021-2022, Committee on Environmental Health and Climate Change, Co-Chair, 2023-present 

International Society for Children’s Health and the Environment, Needleman Award Committee, Chair, 2023-present 

International Society for Environmental Epidemiology, Board of Councilors 1995-1998, Chair, Ethics and Philosophy Committee 2006-2008, 2019-2023, Past Chair, 2024- present, ISEE 2021 Scientific Committee 2020-2021, ISEE 2023 International Scientific Committee 2022-23, ISEE 2024 International Scientific Committee, 2023-2024, Executive Council 2023-present

World Health Organization-Civil Society Working Group on Climate and Health, 2021 – present, Co-Chair, Capacity Building Subcommittee, 2023 - present.