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Drivers of microplastic accumulation in urban agricultural soils: A data-driven source apportionment of plastic mulch and mixed land use
npj Emerging Contaminants
2026
Lei Su,
Jiawei Kang,
Weimin Yao,
Nicholas J. Craig,
Maria Pogojeva,
Jie Li
Summary
This study used an interpretable machine-learning framework across 45 urban-agricultural soil sites to show that microplastic accumulation is primarily driven by plastic mulch aging, with urban land cover contributing a secondary linear effect, providing a quantitative source-apportionment model for mixed land-use landscapes.