Fate and Transport of 17β-Estradiol in Soil−Water Systems

Abstract

Over the past several years, there has been an increase in concern regarding reproductive hormones in the environment To date, there exists limited research on the fate and transport of these chemicals in the environment. In this study, a series of laboratory batch sorption and miscible-displacement experiments were done using radiolabeled [14C]17beta-estradiol. The 17beta-estradiol concentrations that were used were similar to those found in manures that are applied to field soils. Equilibrium batch experiments indicated high sorption affinity with correlations to mineral particle size and organic matter content. The sorption affinity appeared to be associated with the surface area and/or the cation-exchange capacity of the soil. The miscible-displacement breakthrough curves indicated chemical nonequilibrium transport, and a single highly polar metabolite was present in the column effluent along with sporadic and trace detections of estriol. Sorbed to the soil within the column were found 17beta-estradiol, estrone, and trace and sporadic detections of estriol. Two chemical nonequilibrium, miscible-displacement models were used to describe the column breakthrough curves; one without transformations and the other with transformations. Both models resulted in excellent descriptions of the data, which indicated nonunique solutions and less confidence in the parameter estimates. Nonetheless, the modeling and experimental results implied that degradation/transformation occurred in the sorbed phase and was rapid. Also, both models indicated that sorption was fully kinetic.

Acute and chronic effects of testosterone and 4-hydroxyandrostenedione to the crustacean Daphnia magna

“…Testosterone binds strongly to the organic phase of soil particles and seems more mobile in soils (Lee et al, 2003;Finlay-Moore et al, 2000;Casey et al, 2003Casey et al, , 2004Stumpe and Marschner, 2007) and is less resistant against microbial degradation (Stumpe and Marschner, 2007;Horinouchi et al, 2001); the degradation pathway and persistence in natural soils are poorly understood (Fan et al, 2007;Stumpe and Marschner, 2007). Although it was found that testosterone degraded rapidly, it appeared to have a greater potential to migrate to depths in the soil where biodegradation rates are reduced (Finlay-Moore et al, 2000) than the potential for subsurface water contamination to increase.…”

Validation of the exposure assessment for veterinary medicinal products

“…For example, the sorption of oestradiol-17 is associated with the surface area and/or the cation exchange capacity of the soil, with high correlation to particle size (clay) and organic matter. K F values for this substance were in the range of 86-6670 l kg −1 , with K om values of 1800-72500 l kg −1 (median 2600 l kg −1 ) (Casey et al, 2003). In soil column leaching studies performed with oestradiol-17 , K om values ranging from 950 to 1700 l kg −1 were determined.…”

Accumulation of steroid hormones in soil and its adjacent aquatic environment from a typical intensive vegetable cultivation of North China

“…3), which suggests that they had higher mobility in greenhouse soil. In particular, TS is more mobile in soil than estrogen and is more likely to be leached from the soil and reach the groundwater (Casey et al, 2003;Lee et al, 2003). Estrogens and androgens have been found in groundwater samples adjacent to operating swine and beef cattle facilities in previous studies (Arnon et al, 2008;Bartelt-Hunt et al, 2011).…”