Summary
This 2023 study investigates the potential for select persistent organic contaminants—specifically PFAS, pharmaceuticals, and hormones—to leach through agricultural soils following amendment with composted biosolids. The work addresses environmental and soil health concerns relevant to land application of biosolids as a soil amendment practice. As suggested by the experimental design, the findings likely quantify contaminant mobility under conditions representative of amended arable soils.
UK applicability
Biosolids application to agricultural land is regulated in the United Kingdom under the Quality Protocol and PAS 100, with increasingly stringent contaminant limits. These findings would be relevant to UK regulatory frameworks and evidence bases for PFAS and emerging contaminant limits in biosolids-derived amendments.
Key measures
Concentration and leaching rates of PFAS, selected pharmaceuticals, and hormones in soil pore water; soil amendment composition and properties
Outcomes reported
The study examined the movement of per-/poly-fluoroalkyl substances (PFAS), pharmaceuticals, and hormones through soil columns amended with composted biosolids, as suggested by the title. Leaching rates and contaminant transport under controlled conditions were measured.
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