Articles | Volume 14, issue 6
https://doi.org/10.5194/amt-14-4617-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-14-4617-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Development and application of a United States-wide correction for PM2.5 data collected with the PurpleAir sensor
Karoline K. Barkjohn
CORRESPONDING AUTHOR
Office of Research and Development, US Environmental Protection
Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, USA
Brett Gantt
Office of Air Quality Planning and Standards, US Environmental
Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, USA
Andrea L. Clements
Office of Research and Development, US Environmental Protection
Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, USA
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Cited
144 citations as recorded by crossref.
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140 citations as recorded by crossref.
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- Quantifying air quality co-benefits to industrial decarbonization: the local Air Emissions Tracking Atlas A. Jordan et al. 10.3389/fpubh.2024.1394678
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- Towards a hygroscopic growth calibration for low-cost PM2.5 sensors M. Patel et al. 10.5194/amt-17-1051-2024
- Evaluation of Cairpol and Aeroqual Air Sensors in Biomass Burning Plumes A. Whitehill et al. 10.3390/atmos13060877
- Air quality and health impacts of the 2020 wildfires in California M. Carreras-Sospedra et al. 10.1186/s42408-023-00234-y
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Discussed (final revised paper)
Latest update: 13 Dec 2024
Short summary
Although widely used, air sensor measurements are often biased. In this work we develop a correction with a relative humidity term that reduces the bias and improves consistency between different United States regions. This correction equation, along with proposed data cleaning criteria, has been applied to PurpleAir PM2.5 measurements across the US on the AirNow Fire and Smoke Map and has the potential to be successfully used in other air quality and public health applications.
Although widely used, air sensor measurements are often biased. In this work we develop a...