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Recommendation: Superabsorbent polymers in soil: The new microplastics? — R1/PR7
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Researchers examined whether superabsorbent polymers including polyacrylates and polyacrylamides, widely used in agriculture and personal care products, should be classified as a new category of microplastics given that soil weathering may fundamentally alter their chemical properties and environmental behavior.
The extensive use of synthetic polymers in our everyday lives has resulted in significant plastic pollution. Superabsorbent polymers (SAPs) are yet another class of anthropogenic materials with uncertain environmental implications. SAPs, like polyacrylates (PAA) or polyacrylamides (PAM), find applications in personal care products, construction, wastewater treatment, agriculture and soil remediation. However, when SAPs enter the soil, weathering may change their intended properties, potentially forming plastic-like solid residues over time. This review aims to evaluate the current scientific understanding of the application and environmental fate of SAPs in soil, focusing on the processes driving their potential transformation into solid residues. We explore analytical techniques for the qualitative and quantitative characterization of SAPs and solid SAP residues. Our research provides first insights into the potential mechanisms and conditions governing SAP aging and transformation, advancing our understanding of the fate of SAPs in soil and their impact on soil properties and functioning. There are specific knowledge gaps regarding the influence of climate change on the application and transformation of SAPs in soil. To facilitate future research, we suggest scrutinizing relevant processes of SAP transformation in the field, critically (re)evaluating SAP application to the soil and establishing robust monitoring methods.
More Papers Like This
Decision: Superabsorbent polymers in soil: The new microplastics? — R1/PR8
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Researchers examined superabsorbent polymers such as polyacrylates and polyacrylamides as a potentially overlooked class of soil plastic pollutants, investigating how weathering in soil changes their intended properties and whether they should be considered a new category of microplastics.
Recommendation: Superabsorbent polymers in soil: The new microplastics? — R0/PR4
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This peer review recommendation evaluates a study on whether superabsorbent polymers in agricultural soil constitute a new category of microplastics. The review process reflects ongoing scientific debate about how to classify and regulate these widely used synthetic polymer materials.
Author comment: Superabsorbent polymers in soil: The new microplastics? — R1/PR6
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This peer review comment examines whether superabsorbent polymers (SAPs) like polyacrylates and polyacrylamides — widely used in agriculture and hygiene products — should be classified as a new category of microplastics given their uncertain environmental fate. The debate highlights significant gaps in understanding how these synthetic polymers break down and accumulate in soil.
Review: Superabsorbent polymers in soil: The new microplastics? — R0/PR2
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This paper asks whether superabsorbent polymers used in agriculture and personal care products could be the next microplastic concern. Like conventional microplastics, synthetic superabsorbent polymers can persist in soils, affect plant and soil organism health, and may need regulatory attention.
Superabsorbent polymers in soil: The new microplastics?
AI summary Read the abstract
This review examines whether superabsorbent polymers used in agriculture, personal care products, and construction could become a new form of microplastic pollution in soil. Researchers found that weathering may transform these polymers into solid plastic-like residues over time, though the specific conditions driving this transformation are not yet well understood. The study suggests more research is needed to determine the long-term environmental fate of these widely used materials.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.