biostudies-literatureUnknown46(12)Parven AThe University of NewcastleHerbicides are widely recognized as the most cost-effective solution for weed control, but their extensive use in both urban and agricultural settings raise serious concerns about nontarget effects. We assessed the possible hazards associated with pre-emergence herbicides such as dimethenamid-P, metazachlor, and pyroxasulfone, which are frequently applied in both urban and agricultural soils. The dissipation rate constant values (k day^-1: 0.010-0.024) were positively linked to total organic carbon (TOC), silt, clay, soil pH, and Al and Fe oxides, but negatively correlated with sand content. In contrast, half-life values (DT₅₀: 29-69 days) of the herbicides showed negative correlations with TOC, clay, silt, soil pH, and Fe and Al oxides, while sand content showed a posEnvironmental geochemistry and health493https://www.ebi.ac.uk/biostudies/studies/S-EPMC11543765biostudies-literaturePre-emergence herbicides used in urban and agricultural settings: dissipation and ecological implications.PMC11543765Venkateswarlu KMegharaj MMeftaul IMParven AfalsePre-emergence herbicides used in urban and agricultural settings: dissipation and ecological implications.Herbicides are widely recognized as the most cost-effective solution for weed control, but their extensive use in both urban and agricultural settings raise serious concerns about nontarget effects. We assessed the possible hazards associated with pre-emergence herbicides such as dimethenamid-P, metazachlor, and pyroxasulfone, which are frequently applied in both urban and agricultural soils. The dissipation rate constant values (k day^-1: 0.010-0.024) were positively linked to total organic carbon (TOC), silt, clay, soil pH, and Al and Fe oxides, but negatively correlated with sand content. In contrast, half-life values (DT₅₀: 29-69 days) of the herbicides showed negative correlations with TOC, clay, silt, soil pH, and Fe and Al oxides, while sand content showed a pos2024-01-01T00:00:00Z2024 Nov2025-04-26T23:28:03.53Z2025-04-06T17:32:52.527ZS-EPMC115437653950897910.1007/s10653-024-02269-9