Online, On-Demand Recording

Course credits: 0.1
Course contact hours: 1.25

Class description

Occupational and environmental health exposures cause thousands of illnesses and injuries each year. This lecture series addresses the evaluation, treatment, and prevention of disease and injuries related to environmental and occupational exposures encountered by physicians and their colleagues in local, regional, and international settings.

On-Demand, Online Recording of Live Lecture from November 1, 2023

OEM Grand Rounds - Fentanyl in Second-Hand Smoke: Public Health, Exposure Science, and Clinical Perspectives


  • Marissa Baker, PhD, Associate Professor, Environmental and Occupational Health Sciences (DEOHS), University of Washington

  • Sophia Chiu, MD, MPH, Assistant Director, Occupational Medicine Rotation Program, National Institute for Occupational Safety and Health (NIOSH)

  • Scott Phillips, MD FACP FACMT FAACT, Executive Director/Medical Director, Washington Poison Center

View the OEM Grand Rounds Lecture Series flyer.

On-demand online recording available NOW through 12/1/25.


The panelists discuss the occupational and public health implications of fentanyl exposure in secondhand smoke as it relates to city workers and metro drivers. Dr. Chiu presents data from several NIOSH Health Hazard Evaluations involving Fentanyl in Secondhand Smoke. Dr. Baker discusses new research findings involving air quality on buses and transit operator exposures to fentanyl in the Pacific Northwest. Dr. Phillips describes the toxicokinetics and toxicodynamics of different formulations of fentanyl on humans, and discusses passive exposure of the public to fentanyl and methamphetamine.


Dr. Sophia Chiu is a Lead Physician in NIOSH’s Health Hazard Evaluations program. Many of her recent projects have involved potential occupational exposures to opioids and illicit drugs among first responders and other worker groups. She received her undergraduate degree from Harvard University and completed medical school at the State University of New York—Stony Brook. As part of residency training in occupational medicine at the University of Iowa, she earned an MPH degree in occupational and environmental health. She also has master’s degrees in statistics and philosophy. She also completed CDC’s Epidemic Intelligence Service fellowship at NIOSH. 

Dr. Marissa Baker is an Assistant Professor in the UW Department of Environmental & Occupational Health Sciences. She also serves as Deputy Director of the Northwest Center for Occupational Health and Safety, housed at DEOHS. She is an affiliate faculty in the Harry Bridges Center for Labor Studies at UW. Trained as an industrial hygienist, Dr. Baker has expertise in workplace exposure assessment, using techniques such as air sampling, biomonitoring and exposure modeling. Dr. Baker led a novel exposure assessment in the Pacific Northwest to characterize airborne and surface concentrations of fentanyl and methamphetamine in trains and buses, working with five transit agencies.

Dr. Scott Phillips is board certified in medical toxicology with over 30 years of patient care. Board certified in both Internal Medicine and Medical Toxicology, Dr. Phillips was the Associate Medical Director and is now the Executive Director/Medical Director of the Washington Poison Center. Dr. Phillips maintains an active practice in Washington State.  As a fellow of the American College of Physicians, the American Academy of Clinical Toxicology and the American College of Medical Toxicology, Dr. Phillips is dedicated to ongoing education and teaching. Focusing on environmental toxicology and health risk assessment, Dr. Phillips has authored over 200 articles, chapters and abstracts as well as several textbooks on medical toxicology.


CDC logoIn support of improving patient care, this activity has been planned and implemented by Centers for Disease Control and Prevention and the Northwest Center for Occupational Health and Sciences, University of Washington Department of Environmental and Occupational Health Sciences. The Centers for Disease Control and Prevention is jointly accredited by the Accreditation Council for Continuing Medical Education (ACCME), the Accreditation Council for Pharmacy Education (ACPE), and the American Nurses Credentialing Center (ANCC), to provide continuing education for the healthcare team.

CME:  The Centers for Disease Control and Prevention designates this enduring activity for a maximum of 1.25 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

AAPA CME: Credit Designation Statement – Enduring Materials

The Centers for Disease Control and Prevention has been authorized by the American Academy of PAs (AAPA) to award AAPA Category 1 CME credit for activities planned in accordance with AAPA CME Criteria. This activity is designated for 1.25 AAPA Category 1 CME credits. Approval is valid until {December 1, 2025}. PAs should only claim credit commensurate with the extent of their participation.

CNE:  The Centers for Disease Control and Prevention designates this activity for 1.25 nursing contact hours.

CEU:  The Centers for Disease Control and Prevention is authorized by IACET to offer 0.1 CEU's for this program.

DISCLOSURE: In compliance with continuing education requirements, all planners and presenters must disclose all financial relationships, in any amount, with ineligible companies during the previous 24 months as well as any use of unlabeled product(s) or products under investigational use.  

CDC, our planners, and content experts wish to disclose they have no financial relationship(s) with ineligible companies whose primary business is producing, marketing, selling, reselling, or distributing healthcare products used by or on patients.

Content will not include any discussion of the unlabeled use of a product or a product under investigational use with the exception of Dr. Jennifer M Zumsteg’s discussion of Traumatic Brain Injury. She will be discussing current treatments for TBI, none which are FDA approved medications for symptom management. Therefore, the information that the treatments are “off-label.”

If CEU only, Joint Provider: The Centers for Disease Control and Prevention and Northwest Center for Occupational Health and Safety are jointly providing the CEUs for this activity.

CDC did not accept financial or in-kind support from ineligible companies for this continuing education activity.