Andy Rezendes, Alpha Analytical Labs

MADEP Guidance-SamplingIndoor Airwww.alphalab.com• Outdoor air sample recommended• Can limit investigation to COCs, refer to MassDEP RiskCharacterization Guidance (sect. 2)• Should be sampled simultaneously or at a similar time assubslab/soil vapor samples• Other collection devices allowed in App. 3 (vials, bags,passive monitors, tubes), no MCP methodology for thesedevices