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SPod Progress Summary Slides
Citation:
Thoma, E. SPod Progress Summary Slides. Presented at EPA SPod Share Site, RTP, NC, June 08, 2016.
Impact/Purpose:
These slides summarize the SPod design, purpose, and progress as of June, 2016. These slides will be posted on the EPA SPod Share Site along with design information and other materials that communicate the project to internal and external collaborators.
Description:
This presentation describes the draft “open source” design package for the SPod fenceline sensor. The SPod is a low cost, solar-powered system that combines wind field and air pollutant concentration measurements to detect emission plumes and help locate the source of emissions. The current design works only in “near-fenceline” applications where localized source emission plumes may be present. The SPod uses data analysis software (described elsewhere) to separate baseline drift from the plume signal of interest. This software is necessary for proper operation of the SPod. Because the SPod is designed to detect source emissions plumes, it is not useful for ambient applications large distances away from sources. The current SPod detects a subset of air pollutants that can be ionized with a 10.6 eV photoionization detector (PID). In the future, other air pollutant sensors may be used. The purpose of this presentation and related postings is to advance design concepts in the low-cost fenceline sensor area with any interested parties. The SPod is a work in progress with continued advances incorporated on an ongoing basis. This document is posted on an EPA share drive along with other information that describes the use operation and limitations of the SPod.