Anoxic conditions refer to an environment that lacks oxygen, which can significantly impact chemical processes, particularly those related to redox reactions. In the context of aquifers, these conditions play a crucial role in the transformation of contaminants as they influence the types of chemical reactions that can occur, including the reduction of metals and organic compounds. Anoxic environments are typically found in saturated soils or sediments where oxygen is depleted, leading to unique microbial processes and chemical transformations.
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