Hydrological forcing reshapes nitrogen partitioning under microplastic amendment in hyporheic zones

Effects of plastispheres and pristine microplastics on sediment microbial communities and nitrogen cycling under global warming

Microplastics can Alter the Nitrogen Cycle in Surface Flow Constructed Wetlands

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Both conventional PVC and biodegradable PLA microplastics disrupted nitrogen cycling in constructed wetlands, with PVC causing ammonium accumulation and PLA acting as a carbon source, while both enhanced biofilm formation and enzyme activities at higher concentrations. These polymer-specific effects on nitrogen dynamics reveal that microplastic contamination poses distinct and complex threats to the water treatment functions of natural and engineered wetlands.

Nanoplastics occurrence, detection methods, and impact on the nitrogen cycle: a review

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Researchers reviewing nanoplastic contamination find these particles are widespread across ecosystems but true concentrations remain unknown due to detection limitations, and laboratory studies show nanoplastics disrupt microbial membranes, induce oxidative stress, and significantly inhibit nitrogen cycling.

Microplastics and Aquatic Limnology: Conception of Biogeochemical Processes

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This study explored how microplastics discharged into freshwater bodies alter natural biogeochemical cycles, including carbon and nutrient cycling, in ways that disrupt aquatic ecosystem function. These chemical disruptions can cascade through aquatic food webs, ultimately affecting the health of organisms—including humans—that depend on freshwater ecosystems.

Hormetic dose-response relationships between polystyrene microplastics and nitrogen elimination decoded by biofilm dynamics in electro-assisted constructed wetlands