Description

This technical reference illustrates the abiotic and biotic degradation pathways for chlorinated volatile organic compounds (CVOCs), linking contaminant fate and transport to applicable in situ remediation and bioremediation technologies.

This handout provides a consolidated technical overview of the abiotic and biotic transformation pathways for chlorinated volatile organic compounds (CVOCs), including chlorinated ethenes, chlorinated ethanes, and chlorinated methanes. The pathway diagram illustrates key degradation mechanisms such as reductive dechlorination, dichloroelimination, hydrogenolysis, and abiotic reduction, along with the associated microorganisms and enzymes where applicable.

The reference also links common CVOCs to in situ remediation and bioremediation approaches, helping practitioners evaluate technology fit based on contaminant type, aqueous solubility, and degradation behavior. This makes the handout a practical tool for conceptual site model (CSM) development, remedy selection, and communication with regulators and project stakeholders.

Adapted from peer-reviewed literature and industry guidance, this document is intended for use by environmental consultants, regulators, and remediation practitioners involved in the investigation and treatment of chlorinated solvent impacts in soil and groundwater.

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