• Augmenting Air Quality Monitoring Networks

SPod is a simple sensor. Its job is to protect the fence line by detecting whether VOC emissions are present and providing wind and concentration data to help identify the source and speed repair of emissions if required.

Taking the SPod concept another step forward, EPA researcher Ingrid George is developing the VOC Emissions Tracker (VET), a lower-cost emission measurement system that can be easily deployed in the field to help detect VOC emissions and locate their sources.

The VET combines three advanced VOC measurement technologies:

• the SPod to detect and locate VOC plumes,

• a miniaturized, field-deployable automated gas chromatograph used to monitor a specific VOC pollutant of concern,

• and a canister triggering system that can collect whole air samples when a plume has been detected