Quaternary herbicides retention by the amendment of acid soils with a bentonite-based waste from wineries

Effect of organic matter and iron oxides on quaternary herbicide sorption–desorption in vineyard-devoted soils

“…Since vineyard soils have been identified as the most erodible agricultural soils [36], the transport of organic matter-rich particles by erosion can seriously affect the retention/mobilization of quats in those soils. All this helps to support previous evidence that the major factors governing the sorption of PQ are both the solid state organic fraction [37] and the clay mineral content [38].…”

Combined soil washing and CDEO for the removal of atrazine from soils

“…The capacity of the soil to filter, buffer, degrade, immobilize, and detoxify pesticides is a function or quality of the soil. Pesticide adsorption to soil depends on both the chemical properties of the pesticide (i.e., water solubility, polarity) and properties of the soil (i.e., organic matter and clay contents, pH, surface charge characteristics, permeability) [23][24][25][26][27][28][29]. Pesticides can move off-site contaminating surface and groundwater and causing adverse impacts on aquatic ecosystems.…”

“…Pesticides can move off-site contaminating surface and groundwater and causing adverse impacts on aquatic ecosystems. Pesticide degradation in soil generally results in a reduction in toxicity; however, some pesticides are persistent organic pollutants or these have breakdown products (metabolites) that are more toxic than the parent compound [23][24][25][26]. In this context, several analytical methods for monitoring/degrading pesticides have great attention in the last years [27][28][29].…”

Adsorption of paraquat on soil organic matter: Effect of exchangeable cations and dissolved organic carbon

“…However, the role of organic matter in reducing the mobility of paraquat is somewhat limited, since the dissolved organic matter may interact with the herbicide and thus favor leaching. Although the concentration of dissolved organic carbon (DOC) is usually low in soils, DOC has a high capacity to bind paraquat [9,10], and the herbicide may reach high concentrations in drainage waters, thus influencing its transport through the soil system [11].…”