compounds (EDCs) in the environment. Sorption by soils may play a major role in the
environmental fate of manure-borne EDCs, including 17α-and 17β-estradiol (17α-E2 and
17β-E2), estrone (E1), melengestrol acetate (MGA), 17α-and 17β-trenbolone (17α-TB and
17β-TB), trendione (TND), and zeranol (α-ZAL). As a measure of sorption behavior, the
organic carbon-normalized partition coefficients (K OC) of 17β-E2, E1, MGA, and α-ZAL …