Urine enhances the leaching and persistence of estrogens in soils

摘要: Abstract The release of endocrine disrupting chemicals (EDCs) into the environment is concern due to their potential deleterious effects on freshwater ecosystems and human health. Estrogen losses from agricultural land have been implicated as a diffuse source EDC pollution, however, uncertainty exists about magnitude this flux in comparison other point sources (e.g. sewage treatment plants). Recent reviews all highlighted need for more mechanistic studies hormone behaviour soil environments. aim study was investigate influence aqueous matrix leaching, sorption persistence two naturally occurring hormones, estrone 17β-estradiol three grassland soils. hormones were applied surface solvents, distilled water natural sheep urine. Rainfall subsequently top columns leachate collected. In water, presence urine both enhanced prolonged amount estrogen leaching soil. We hypothesized that rate migration changes either or microbial activity. While did not greatly affect ( K d  = 4–16) it significantly reduce mineralization. Overall, our shows vertical movement rapid, type dependent regulated by which are contained. terms risk assessment environmental fate modelling, we conclude previous performed using contained artificial matrices water) may underestimated dissipation environment.