Role of a non-ionic surfactant and carboxylic acids on the leaching of aged DDT residues in undisturbed soil columns

Purpose Irrigation or flooding events with riverine waters containing compounds such as surfactants, colloids, and dissolved organic carbon and plant growth will modify pesticide availability and leaching. This work studies the effect of a non-ionic surfactant (Tween 80: polyethylene glycol sorbitan monooleate, Tw-80), carboxylic acids (CA), and the role of dissolved organic matter on the lixiviation, availability, and degradation of aged DDT (p,p′-DDT, p,p′-DDE and p,p′-DDD) residues in soil.