Frontiers in Assessing the Role of Chemical Speciation and Natural Attenuation on the Bioavailability of Contaminants in the Terrestrial Environment

Frontiers in Assessing the Role of Chemical Speciation and Natural Attenuation on the Bioavailability of Contaminants in the Terrestrial Environment

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  • November 20, 2018
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This chapter provides an overview of the current state-of-the-art for assessing speciation and attenuation of contaminants in the terrestrial environment. Given that speciation and attenuation influence chemical bioavailability, the chapter discusses application of isotopic dilution techniques to bioavailability assessment. A series of case studies is provided that exemplify cutting-edge techniques and methodologies for assessing the role of chemical speciation and natural attenuation on the bioavailability of contaminants in the terrestrial environment. A summary is presented of the findings of the techniques and case studies presented to reinforce the strength of the techniques described. The strength of synchrotron-based spectroscopic techniques is explained. Through the application of XANES, it is demonstrated that Cr is present in ambient particulate matter in a wide variety of forms that probably …

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