Urban stormwater is an important way microplastics spread in the environment. The RMP developed conceptual models to understand microplastic sources and how they enter urban stormwater. We identified priorities for research and solutions, supported Bay and statewide microplastics monitoring strategies, and informed management efforts to effectively prevent microplastic pollution.
Latest News
Mon, Jun 30 2025
SFEI Scientist Interviewed on Microplastics for Maven's Notebook
Tue, May 6 2025
"Unique as Snowflakes": Understanding Tire Particles
Sun, Oct 15 2023
Vehicle Tires Threaten Water Quality
Wed, Nov 3 2021
A Synthesis of Microplastic Sources and Pathways to Urban Runoff
Tue, Nov 10 2020
Big problem, small size: Improving methods in microplastics research
Recent Publications
Statewide Plastics Monitoring Strategy and Planning Framework
Plastic pollution is a pervasive threat to California’s aquatic environments, with impacts spanning ecological health, human well-being, and the integrity of natural resources. From visible macroplastics (trash) littering…
Load and concentration based performance outcomes for emerging organic contaminants in bioretention stormwater treatment systems
The performance capabilities of bioretention systems for a range of stormwater constituents remain lightly characterized, particularly for emerging organic contaminants. To address this gap, we evaluated concentration- and…
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