Microplastics as Emerging Contaminants and Novel Sediments
Judd Mahan, Senior Scientist
Tetra-Tech
PCPG will circulate a PDH certificate documenting registrant’s participation time, not to exceed 60 minutes, within 72 hours of the conclusion of the webinar.
Level: The topic is explored from several perspectives at a basic technical level and touches on several intermediate level issues such as microplastics effect on nutrient cycles and occurrence in groundwater.
Webinar Overview: Microplastics are garnering attention as emerging contaminants by researchers, the regulatory community, and the media. This presentation provides an overview of the topic in terms of environmental distribution, human health and ecological effects, and current regulations. A brief case study is presented to illustrate environmental distribution. As particles that are novel to ecosystems, microplastics could have a range of effects. Potential effects on nutrient cycles are discussed with examples from recent research on microplastics and the nitrogen cycle in estuarine systems.
Projected Outcomes: As geologists, we are often developing conceptual site models (CSMs)—this presentation provides information to help understand how microplastics might impact our projects.
Who should attend: Anyone interested in the science behind microplastics, and their potential environmental effects would benefit from this presentation. Folks involved with surface water, groundwater, wastewater projects will see information relevant to project experience.
About our presenter: Judd Mahan is a licensed geologist in North and South Carolina and has been working in the environmental consulting industry for 25 years. He serves on the Interstate Technology and Regulatory Council (ITRC) Microplastics and Emerging Contaminants teams. His educational background includes bachelor’s degrees in Geology and History from Auburn University and an MBA from the University of North Carolina at Pembroke. Current projects include soil and groundwater assessments in the Carolinas, environmental permitting for Coast Guard construction projects and support for microplastics studies in the Chesapeake Bay area.
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