Articles | Volume 13, issue 10
Atmos. Meas. Tech., 13, 5441–5458, 2020
https://doi.org/10.5194/amt-13-5441-2020
Atmos. Meas. Tech., 13, 5441–5458, 2020
https://doi.org/10.5194/amt-13-5441-2020

Research article 13 Oct 2020

Research article | 13 Oct 2020

Measurements of PM2.5 with PurpleAir under atmospheric conditions

Karin Ardon-Dryer et al.

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Latest update: 15 May 2021
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Short summary
The PurpleAir PA-II is a low-cost sensor for monitoring changes in the concentrations of particulate matter of various sizes. This study examined the behaviour of multiple PA-II units in four locations in the USA under atmospheric conditions when exposed to a variety of pollutants and different PM2.5 concentrations. The PA-II unit is a promising tool for measuring PM2.5 concentrations and identifying relative concentration changes, as long as the PA-II PM2.5 values can be corrected.