Fig. 1. Experimental correlation between octanol–water partition coefficient (K_ow) of some chlorinated organic compounds and their partition coefficients (K_p) for sewage sludge (based on weight of organic matter in the sludge solid phase). Vertical dotted lines indicate the boundary for sorption tendency of organic compounds on the sludge solid phase (data adopted from Dobbs et al., 1989; Rogers, 1996, with permission).