D4: The Mission of WMATA to Understand Tunnel Dust

Chrisy Walsh, MS, CIH, CSP Moderator
Colden Corporation
New Orleans, LA 
USA
 
Douglas Fallon, CIH, CSP Presenter
WMATA
Washington, DC 
USA
 
Trenell Boggans, MSPH, CIH, CSP Co-Presenter
Washington Metropolitan Area Transit Authority
Silver Spring, MD 
USA
 
Mon, 6/1: 3:15 PM - 4:15 PM CDT
Education Sessions 
Ernest N. Morial New Orleans Convention Center 
Room: 284 
CM Credit Hours:

Description

Tunnel dust is a prevalent environmental concern within subway systems, comprising a complex blend of materials originating from rail infrastructure, train components, maintenance operations, and other natural and man-made sources. Recognizing the potential implications for worker health and safety, the Washington Metropolitan Area Transit Authority (WMATA) undertook a multi-year study to thoroughly characterize the composition of tunnel dust and assess associated exposure risks.

This session will highlight key findings from the investigation, including detailed analyses of dust composition, identification of potential contributing sources, and results from exposure assessments. Attendees will gain valuable insights into the nature of tunnel dust and its relevance to occupational hygiene and transit system operations.

Learning Outcomes

Upon completion, the participant will be able to:
• Describe the composition of tunnel dust in subway environments and its various natural and man-made sources contributing to its presence.
• Explain the methodology used by WMATA to conduct the study on tunnel dust, including sampling techniques and analytical approaches.
• Anticipate the potential health and safety risks associated with worker exposure to tunnel dust in transit systems.
• Discuss strategies for mitigating exposure risks and improving air quality and safety for transit workers.
• Evaluate the relevance of tunnel dust findings to broader transit system operations and maintenance planning.
 

Content Level

Intermediate

Core Competencies

Chemical Hazards
Risk Assessment
Work Environments, Occupations, and Industrial Processes

Keywords

Aerosol and airborne particulate monitoring
Asbestos, lead, and dust
Exposure Assessment
Hazard Communication
Risk assessment and management

Session Availability

In-person
OnDemand

Targeted Audience

Professional

Transfer of Knowledge

Case Studies
Live Polling