Module 4 – Exposure Pathway Evaluation

Training overview

Training objectives

After completing Module 4, you will be able to:

1. Describe the importance of the exposure evaluation.
2. Define what it means to be exposed.
3. Name the five elements of an exposure pathway.
4. List the factors to evaluate the elements of an exposure pathway.
5. Identify the different categories of an exposure pathway.
6. Apply tips to conduct the exposure evaluation.
7. Evaluate the exposure pathways of the case study known as the Gala Lumber Company.

Target audience

Public health professionals involved or interested in the ATSDR PHA process, including:

• Environmental Health Specialists, Toxicologists, and Epidemiologists
• Community Involvement Specialists, Health Communicators, and Health Educators
• Medical Officers and Registered Nurses
• Program Managers

Continuing education units

Instructions for Obtaining Continuing Education (CE)

To receive CE for Public Health Assessment Training Module 4: Exposure Pathway Evaluation, please visit CDC TRAIN and search for the course in the Course Catalog using WB4809. Follow the steps below by 04/09/2026.

1. Register for and complete the course.
2. Pass the post-assessment at 70%.
3. Complete the evaluation.
4. Visit Your Learning to access your certificates and transcript.

Prerequisites

There are no prerequisites to complete Module 4.

Faculty/Credentials

• David Mellard PhD, Associate Director for Science, Agency for Toxic Substances and Disease Registry
• Gregory (Greg) Zarus MS MS BS BS, Director of Office of Innovation and Analytics, Agency for Toxic Substances and Disease Registry
• Sandra M. López-Carreras MS BS, Health Scientist, Agency for Toxic Substances and Disease Registry

Content Experts

This course was developed by ATSDR, Office of Capacity Development and Applied Prevention Science, in collaboration with:

ATSDR's Office of Community Health and Hazard Assessment

Eastern Research Group, Inc.

Tetra Tech, Inc.

National Center for Environmental Health/Agency for Toxic Substances and Disease Registry Office of Communications

CDC Create-IT Services

Accreditation Statements

CEU: The Centers for Disease Control and Prevention is authorized by IACET to offer 0.2 CEU's for this program.

CECH: Sponsored by the Centers for Disease Control and Prevention, a designated provider of continuing education contact hours (CECH) in health education by the National Commission for Health Education Credentialing, Inc. This program is designated for Certified Health Education Specialists (CHES^®) and/or Master Certified Health Education Specialists (MCHES^®) to receive up to 1.5 total Category I continuing education contact hours. Maximum advanced level continuing education contact hours available are 1.5. Continuing Competency credits available are 1.5 CDC provider number 98614.

For Certified Public Health Professionals (CPH)
The Centers for Disease Control and Prevention is a preapproved provider of Certified in Public Health (CPH) recertification credits and is authorized to offer 2.0 CPH recertification credits 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 relationships 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.

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