Meta-analysis of biosolid effects on persistence of triclosan and triclocarban in soil.

摘要: Biosolids are extensively used in agriculture as fertilizers while offering a practical solution for waste disposal. Many pharmaceutical and personal care products (PPCPs), such triclosan triclocarban, enriched biosolids. Biosolid amendment changes soil physicochemical properties, which may turn alter the persistence of PPCPs hence risk secondary contamination plant uptake. To delineate effect biosolids on persistence, triclocarban were model compounds this study their sorption (Kd) (t1/2) determined different soils before after biosolid amendment. consistently increased soil. The Kd by 3.9-21 times following sandy loam with at 2-10%. both was prolonged, t1/2 increasing from 10 d unamended to 63 d 10%. relationship between further examined through meta-analysis using data all relevant published studies. A significant linear observed (r(2) = 0.69, p < 0.01) (r(2) = 0.38, p < 0.05) biosolid-amended soils. On average, when 1%, prolonged 7.5 d, extended 4.7 d. Therefore, greatly enhances likely due enhanced or decreased chemical bioavailability. This finding highlights importance consider evaluating environmental risks these other biosolid-borne PPCPs.