Molecular probe techniques for the identification of reductants in sediments: evidence for reduction of 2-chloroacetophenone by hydride transfer

Article Abstract:

Researchers investigated the anaerobic facile reduction of industrial organic chemicals within the environment. For the study, soil from both fresh water, and sea water were examined. The two reaction pathways of 2-Chloroacetophenone (2CAP) were studied. Electron transfer and hydride transfer pathway reactions were charted for the four sediment samples chosen. The authors were pleased to find "the direct evidence for the reduction of dissolved organ species by hydride in natural sediment" in fresh water sediment. However, the results were far less impressive for sea water sediment. The research showed that 2CAP is an effective probe molecule.

Environmental aspects, Soil pollution, Organic compounds

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Chlorinated ethenes from groundwater in tree trunks

Article Abstract:

Researchers state that this is possibly the first "investigation demonstrating that headspace analysis of tree cores can be an inexpensive and rapid method to delineate shallow TCE and cDCE groundwater contamination." Using a contaminated flood plain, researchers took core samples from trees and found that some trees absorb the contaminants more readily than others. Additionally, core samples were taken at various levels from a single tree. The tree contained higher concentrations of the contaminants at lower levels. As such, trees are an efficient, and inexpensive means for detecting groundwater pollution, and direction of pollution.

Trees, Groundwater flow, Bioavailability

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In situ stabilization of metal-contaminated groundwater by hydrous ferric oxide: An experimental and modeling investigation

Article Abstract:

An investigation of the use of in-situ emplacements of adsorptive coatings on aquifer matrices to recover groundwater contaminated by metals.

Statistical Data Included, Methods, Illustration, Decontamination (from gases, chemicals, etc.), Decontamination

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