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There is extensive contamination of sediments by previous instances of persistent organic contaminants, and restoration is frequently required to clear up highly polluted locations. Before and following measurements of pollutant absorption allow for a more accurate evaluation of cleanup success. Nevertheless, a variety of bioavailable measuring techniques were created, making it difficult for professionals to choose one. In this work, the ability to distribute DDT and its degradants in sediments after modeled remediation procedures was assessed using three distinct bioavailable testing techniques: solid-state microextraction (SPME), Tenax, the process of desorption, and the isotopic diffusion technique (IDM). Each of the three techniques effectively predicted similar levels of modifications to bioavailability following amending with carbon dioxide, activated burning charcoal, or sands in relation to the unchanged materials. Observations from several techniques were statistically associated with one another after being normalized over the unaltered control, with coefficients near 1. The identical finding was also found using sea sediment from a Hazardous location. This result indicates that several techniques may be employed to gauge the effectiveness of rehabilitation. But when it came to identifying modifications to accessibility, Tenax adsorption or IDM consistently delivered higher sensitivity than SPME. Findings from this study demonstrate the need to take solubility into account whenever assessing rehabilitation efficacy and offer suggestions for choosing bioavailable measuring techniques for these evaluations.
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