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This study investigated the intrinsic perchlorate (ClO4-)degradation kinetics of sediments and soils from multiple sites in microcosm studies, including the influence of varying nitrate concentration (NO3--N from 1 to 22.8 ppm) and up to 300 ppm sulfate. The first-order degradation rates and lag times of both ClO4- and NO3- degradation were site-specific and dependent on environmental conditions...
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