Ambient and indoor air are potential media that can be impacted by contamination.

1,4 Dioxane (14DX-1)
Figure 5-1: Example of a pictorial exposure pathway CSM for risk assessment.
Shows air transport pathway for a contaminant leaching into soil.
Section 6.1 (Remediation Technologies)
Discusses vapor properties of 1,4-Dioxane and potential air remediation strategies.

Per- and Polyfluoroalkyl Substances (PFAS-1)
Fact Sheet: Site Characterization and Media-Specific Occurrence
Discusses occurrence of PFAS contamination in ambient air (Section 3, page 4).

Innovative Methane Detection Technologies (METHANE-1)
Section 1 (Introduction)
Provides an overview of existing and emerging technologies as well as guidance regarding performance characteristics and parameters to consider in methane detection technologies.