Science Inventory

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Despite converting to green and electric sources of power, motorized transportation remains dependent upon conventional synthetic rubber tires for operation. Global dependence upon tires produced from natural rubber and petroleum-based compounds, including plastics, represents a ...

Microplastics (MP) are found in marine sediments across the globe, but we are just beginning to understand their spatial distribution and assemblages. In this study, we quantified MP in Gulf of Maine, USA sediments. MP were extracted from 20 sediment samples, followed by polymer ...

Plastic particles are now found ubiquitously in the environment. As the abundance of plastic increases in marine systems, the magnitude of adverse biological and ecological effects of plastics of various size classes (macro-, micro-, nano-) need to be evaluated for potential risk...

This is a requested presentation for the Association of Clean Water Administrators (ACWA) that discusses how ORD is the research arm of the EPA and provides the scientific foundation for EPA to execute its mandate to protect human health and the environment. An overview of the 6 ...

This outreach classroom presentation covers the the role toxicity plays in the USEPA's regulations, discusses the history of toxicology and briefly  summarizes the definition and issues surrounding microplastics. 

As production of plastic production and consumption continues to grow so too does environmental plastic pollution. Plastic pollution occurs in several sizes including macroplastics, nanoplastics, and microplastics. The detection and characterization of microplastics is essential ...

The Office of Research and Development is conducting research on plastic material flows and recycling.  This effort represents a progress update, showing the research on the recycling system and the material flow analysis on one slide.  The recycling system consists of collection...

The Bayesian network (BN) session at the SETAC North America 44th Annual Meeting was conducted for the sixth consecutive year. Since its inception in 2018 during the SETAC North America annual meeting in Sacramento, the BN session has grown into a multi-faceted platform for the p...

This presentation is intended for the UC Berkeley, Environmental Health Science Division, Justin Remais lab group. It provides an overview of current projects and collaborations, which depend on PESD molecular research leadership, genomics data collection and bioinformatics analy...

Plastic particles are ubiquitous in marine systems and fragment into smaller pieces, such as nanoplastics (NPs). The effects of NPs on marine organisms are of growing concern but are not well understood. Marine sediments act as a sink for many contaminants, like microplastics, an...

Plastic particles are found ubiquitously in the environment, and as plastic abundance increases in marine systems, the adverse biological and ecological effects of plastics of various size classes (macro-, micro-, nano-) needs to be evaluated for potential risks. Marine sediments...

Sediments are a major sink for microplastics (MP) and while methods for extracting and identifying MP in sediment have improved in recent years, these methods continue to be time and cost intensive and scientifically rigorous. The cost of specialized identification instrumentatio...

The Interstate Technology and Regulatory Council (ITRC) is a state-led environmental coalition working to create innovative solutions and best management practices (BMPs) for the environmental sector. ITRC produces guidance documents and trainings that broaden and deepen technica...

This presentation is a brief overview of US Federal and State activities for microplastics. It includes a summary of plastics legislation in the US and highlights federal and state governmental response to legislative mandates. It focuses on the activities of the US Interagency N...

This presentation will focus on how to understand and address contaminant sources from road wear particles.

This presentation is intended for the Regional-ORD Community of Science Networking Program (ROCS-Net) 2023 participants at the meetings hosted by PESD. It provides an overview of current projects and collaborations, which depend on PESD molecular research leadership, genomics dat...

There is an increasing volume of nano-enabled materials in the market. Once composites containing nano-additives are disposed of, weathering could deteriorate their structures, releasing nanoparticles and risking exposure of humans and aquatic organisms. Composite degradation due...

These workshops will be platform to present recent research at EPA as it relates to best practices in site characterization, sample analysis, and suitable treatment technologies for mining, persistent organic pollutants, and microplastics. The first presentation will be expanding...

Plastic pollution is ubiquitous worldwide. Smaller pieces of plastic (<5 mm) denominated as microplastics (MPs) are of particular concern because they can be easily transported throughout the environment. As they travel, MPs can adsorb chemicals or nutrients, and develop a biofil...

The objective of the USEPA&rsquo;s Microplastic (MP) research has been to standardize and develop methods to extract MP from environmental matrices particularly for sediments.&nbsp; Analysis of MP is complicated due to their heterogeneous nature and three order magnitude size ran...

A common method for characterizing microplastics (MPs) involves capturing the plastic particles on a filter after extraction and isolation from the sediment particles. Microplastics captured on the filter are then scanned with&nbsp;Raman spectroscopy&nbsp;for polymer identificati...

Previous studies have evaluated method performance for quantifying and characterizing microplastics in clean water, but little is known about the efficacy of procedures used to extract microplastics from complex matrices. Here we provided 15 laboratories with samples representing...

The objective of the USEPA&rsquo;s Microplastic (MP) research has been to standardize and develop methods to extract MP from environmental matrices.&nbsp; Analysis of microplastics (MP) is complicated due to the heterogeneous nature of polymers, high concentrations of additives, ...

This paper reviews the currently used pretreatment methods for microplastics (MPs) analysis in soil and freshwater sediments, primarily sample processing, pretreatment, and characterization methods for MPs analysis. In addition, analytical tools (e.g., lab instruments), MPs chara...

Microplastics (MPs) are an emerging class of pollutants in air, soil, and, especially, in all aquatic environments.&nbsp; Secondary MPs are generated in the environment during fragmentation of especially photo-oxidized plastic litter. Photo-oxidation is mediated primarily by sola...