Abstract
The leaching behavior of aldicarb among the complex pollutionsystem composed of aldicarb and surfactant – sodiumdodecylbenzenesulfonate (SDBS) was studied by soil column.Distilled water was used to simulate rain in order to obtain therainfall of 235 mm for each time. Three simulations were carriedout successively to give 705 mm rainfall in all. The results ofmulti-step leaching experiment showed that compared with controlcolumn, SDBS can increase the vertical distance of aldicarbmoving and accelerate the leaching. As the concentration of SDBSincreased from 250 to 500 mg kg-1 of soil, not only theleaching depth of aldicarb increased by 20 cm, but also below10 cm depth in soil column the concentration of aldicarb at thesame depth increased obviously. This will enhance the danger ofgroundwater pollution. SDBS affected the leaching behaviour ofaldicarb in soil by influencing its water solubility, adsorptioncapacity and degradation process. The mechanism of this complexeffect has been discussed in this article.
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Dai, S., Liu, G. & Liu, Q. The Leaching Behavior of Aldicar Among Complex Pollution System Composed of Surfactant SDBS and Aldicarb. Water, Air, & Soil Pollution 131, 119–133 (2001). https://doi.org/10.1023/A:1011982503015
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DOI: https://doi.org/10.1023/A:1011982503015