Development of analytical methods used for the study of 2,4,6-Trinitrotoluene (cas 118-96-7) degradation kinetics in simulated sediment samples from the Baltic Sea

Add time:08/27/2019    Source:sciencedirect.com

Large amounts of ammunition containing 2,4,6-Trinitrotoluene (cas 118-96-7) (TNT) and other substances were dumped in the Baltic Sea after WWII. Considering progressive corrosion processes, studying the transformation of TNT occurring in the environment constitutes an important aspect of a possible associated risk. This study focused on the transformations of TNT in simulated conditions of the Baltic Sea bottom sediment. Methods of analysis of TNT and selected products of its transformations were developed for that purpose. The developed methods allowed for the determination of selected compounds below 1 ng/g. Systematic monitoring of TNT transformations in the environment of the bottom sediment was performed. This allowed for the determination of the kinetics of TNT degradation and identification of degradation reaction products. Based on the obtained results, the TNT decay half-time in conditions present in the Baltic Sea was estimated to be 16.7 years for the abiotic environment and 5.6 for the biotic environment.

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