Fig. 3. Sorption–desorption isotherms for CL-20 in nonsterile Sassafras sandy loam (SSL); sandy agricultural topsoil from Varennes, QC, Canada (VT); sandy forest soil from Boucherville, QC, Canada (FSB); sandy garden soil obtained from a local supplier (GS); and sandy forest soil provided by a local supplier (FS) at ambient temperature. Sorption is denoted by filled symbols and solid lines; desorption by hollow symbols and dashed lines. For clarity, data obtained with soils having a high affinity for CL-20 (top) are presented separately from data obtained with soils having a low affinity for CL-20 (bottom).