Characterization of mass transfer of lower chlorinated benzenes from contaminated sediment into water

► We studied the flux of 1,3-dichlorobenzene (1,3-DCB) from sediments into water. ► 1,3-DCB was studied as an individual contaminant and as part of a mixture. ► Two advection-dispersion models were tested in different flow conditions. ► Tortuosity and related effective diffusivity are good system predictors and descriptors. ► The models can predict 1,3-DCB flux adequately in small streams.