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Fig. 3. Breakthrough curve of Cl– (+), estradiol (o), and testosterone (
) through columns of conventionally tilled (CT) and no-till (NT) Cecil sandy loam. Each graph possesses two y-axes. The left y axis represents the relative concentration of hormones (C C0–1). The right y axis represents the relative concentration of Cl– (C C0–1). Solid lines indicate the fitted model generated by HYDRUS-1D. A physical nonequilibrium model was fit to the Cl– data and a quasi-combined physical and chemical nonequilibrium model was fit to the hormone data.
