Environmental Studies and Forestry

Higher concentrations of microplastics in runoff from biosolid-amended croplands than manure-amended croplands

N. N. Beni, S. Karimifard, et al.

This study conducted by Nasrin Naderi Beni and colleagues reveals that biosolid-amended croplands contribute significantly to microplastic contamination in US surface waters. With higher concentrations in runoff compared to manure-amended plots, this research uncovers a critical nonpoint source pollution pathway, highlighting a pressing environmental concern.

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Abstract

This study investigates the transport of microplastics (MPs) from biosolid-amended and manure-amended croplands via runoff. Higher MP concentrations were found in runoff from biosolid-amended plots compared to manure-amended and control plots. Fibers and fragments were the most prevalent MP morphologies in runoff, correlating with their smoother surfaces. The study quantifies the potential contribution of biosolids to MP contamination of US surface waters, highlighting a significant nonpoint source pollution pathway.

Publisher

Communications Earth & Environment

Published On

Feb 20, 2023

Authors

Nasrin Naderi Beni, Shahab Karimifard, John Gilley, Tiffany Messer, Amy Schmidt, Shannon Bartelt-Hunt

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