Table 4 Retardation factors and groundwater ubiquity score of QUN in soils.

From: Adsorption–desorption behavior of the endocrine-disrupting chemical quinestrol in soils

Soil site

Soil property

Retardation factor

GUS

Bulk density, ρb

Porositya, θ

Rf = 1 + ρbKf

DT50b

Log(DT50) × [4 − log (KOC)]

BJ

1.36

0.49

36.08

9.44

1.16

NMG

1.65

0.38

17.15

14.72

1.74

YN

1.29

0.51

18.58

13.12

1.42

HLJ

1.48

0.44

69.85

9.92

1.07

GX

1.33

0.50

31.13

9.83

1.23

  1. aSoil porosity = 1 − (soil bulk density/2.65).
  2. bDT50 values from our previous report16.