06/13/2023: Sampling Methods For Personal Exposure to Herbicides

Sampling Methods For Personal Exposure to Herbicides

About the webinar:

Many herbicides can exist in the atmosphere as both a droplet and evaporated vapor. Therefore, methods to assess personal exposures to herbicides samplers must be developed to optimize capture of both droplet and vapor phases. This webinar will describe the qualities of two such samplers. Measurements taken in both the lab and field will be presented to demonstrate sampler qualities and to detail the considerations needed to properly assess herbicide exposures.

Learning Objectives

At the completion of this activity, the learner will be able to:

  • Describe the concept of an inhalable sampler

  • Distinguish between two herbicide samplers in terms of their droplet collection efficiency

  • Identify different methods used to spray herbicides, and sprayer exposure concerns

Speaker: Patrick O’Shaughnessy, PhD, CIH, FAIHA

Dr. Patrick O’Shaughnessy joined the faculty at the University of Iowa in 1997, where he holds the rank of Professor in the department of Occupational and Environmental Health. He is a member of the Industrial Hygiene faculty in that department and is the Director of the NIOSH ERC at the University of Iowa, the Heartland Center for Occupational Health and Safety. Dr. O’Shaughnessy is a recognized scholar in the field of aerosol physics, respirator performance, and human exposure assessment applied to occupational and environmental health concerns.


The Center for Occupational and Environmental Health designates this activity for a maximum of 1.0 Contact Hour. Participants should claim only the credit commensurate with the extent of their participation.

Certificates of Completion

Certificates of Completion will be available to webinar participants who are present for the complete, live webinar, and logged in with their registered email address. Call-in attendees are not eligible for certificates at this time - Please download the Zoom app to log in via email on your smartphone whenever possible.

In order to receive your Certificate of Completion, qualified learners must complete the post-webinar evaluation within 7 days of the webinar. A link to the evaluation will be emailed to qualified learners 24 hours after the webinar via no-reply@zoom.us. Qualified learners who submit their evaluation will receive a Certificate of Completion via email, and can also print/save the certificate from their browser after submitting their evaluation.

If you're not able to attend the live presentation, no problem! We record most presentations and will host them on our website provided we have permission to do so. Presentation recordings are not eligible for Certificates of Completion.

Heartland Center for Occupational Health and Safety

About Heartland Center for Occupational Health and Safety:

The Heartland Center for Occupational Health and Safety provides graduate training, continuing education, and outreach in the area of occupational health and safety. Located in the University of Iowa’s College of Public Health, it is a NIOSH-funded Education and Research Center serving Iowa, Kansas, Missouri, and Nebraska.


If you require an accommodation for effective communication (ASL interpreting/CART captioning, alternative media formats, etc.) to fully participate in this event, please contact Michelle Meyer at (510) 642-8365 or mmeyer@berkeley.edu(link sends e-mail) with as much advance notice as possible and at least 7-10 days in advance of the event.