Propanil rapidly degraded in aerobic soil, degradation proceeded via hydrolysis to yield 3,4-DCA. Oxidation of the amine group occurred to form 3,4 dichloronitrobenzene and 3,3′,4,4′-tetrachloroazobenzene and other minor products. Degradates were incorporated into the soil organic matter (bound residues) and subsequently mineralised to CO2.In Pavia soil, 3.4 DCA and DCNB, were found at least at 2 subsequent time points at level (>10%), thus they are both relevant. DCA max at 2d (65.2%), it is found at 7% at 30d; DCNB max 18.1% at17d , it is found at 17.4% at 30 d.