Dataset associated with "Laboratory Evaluation of Low-cost PurpleAir PM Monitors and In-field Correction using Co-located Portable Filter Samplers"
Raw data recorded by a tapered element oscillating microbalance (TEOM) during the two laboratory evaluations (18.97Kb)
Raw data recorded by the PurpleAir monitors during the two laboratory evaluations and the field deployment (96.51Mb)
Summary of the average PM2.5 concentrations measured using the PurpleAir monitors, ASPEN boxes, and conventional filter samplers at each field site during each 72-hour sample period (59.00Kb)
Summary of the time-averaged concentrations reported by the PurpleAir monitors and the TEOM during the discrete concentration steps that comprised each laboratory evaluation (44.52Kb)
Low-cost aerosol monitors can provide more spatially- and temporally-resolved data on ambient fine particulate matter (PM2.5) concentrations than are typically available from regulatory monitoring networks; however, low-cost monitors—which do not measure PM2.5 mass directly and tend to be sensitive to variations in particle size and refractive index—sometimes produce inaccurate concentration estimates. We investigated laboratory- and field-based approaches for calibrating low-cost PurpleAir monitors against gravimetric filter samples. First, we investigated the linearity of the PurpleAir response ...
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