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How effectively do filters reduce the release of microplastics into Oregon (USA) waters?

IWRA World Water Congress 2025 Marrakech Morocco
Water Quality and One Health Opportunities
Author(s): Kervelle Baird - Portland State University

Kervelle Baird Portland State University

Co-authors:

Dr. Elise Granek: Portland State University

Dr. Susanne Brander: Oregon State University

Dr. Cara Poor: University of Portland

Dr. Tala Navab – Daneshmand: Oregon State University


Oral: PDF

Abstract

Background


• Weathering and runoff release MPs (Andrady, 2011).
• Wind & water transport microplastics (MPs) across ecosystems (Thompson et al., 2024).
• Wastewater treatment plants release plastic microfibers (Kapp and Miller, 2020).
• Humans ingest and inhale MPs (found in various organs) (Thompson et al., 2024).
• MPs stunt growth, hinder reproduction, and cause death (Chartres et al.,
2024).
• ~ 5 MPs/L of stormwater sampled in North Portland (Wolfand et al.,2023).
• Seasonal variation in MP concentrations (Talbot et al., 2022)