Articles | Volume 15, issue 8
https://doi.org/10.5194/amt-15-2345-2022
© Author(s) 2022. 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-15-2345-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 Apr 2022
Research article |
| 20 Apr 2022
| 20 Apr 2022
The Aerosol Research Observation Station (AEROS)
Karin Ardon-Dryer
CORRESPONDING AUTHOR
Department of Geosciences, Atmospheric Science Group, Texas Tech
University, Lubbock, TX, USA
Mary C. Kelley
Department of Geosciences, Atmospheric Science Group, Texas Tech
University, Lubbock, TX, USA
Xia Xueting
Department of Geosciences, Atmospheric Science Group, Texas Tech
University, Lubbock, TX, USA
now at: Department of Statistics, Ohio State University, Columbus, OH, USA
Yuval Dryer
Department of Geosciences, Atmospheric Science Group, Texas Tech
University, Lubbock, TX, USA
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On 26 February 2023, New Mexico and West Texas were impacted by a severe dust storm. To analyze this storm, 28 meteorological stations and 19 PM2.5 and PM10 stations were used. Dust particles were in the air for 16 h, and dust storm conditions lasted for up to 120 min. Hourly PM2.5 and PM10 concentrations were up to 518 and 9983 µg m−3, respectively. For Lubbock, Texas, the maximum PM2.5 concentrations were the highest ever recorded.
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Changes in the particle size distribution and particulate matter concentrations during different dust events in West Texas were examined. Analysis based on different timescales showed that current common methods used to evaluate the impact of dust events on air quality will not capture the true impact of short (convective) dust events and, therefore, do not provide an insightful understanding of their impact on the environment and human health.
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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.
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Short summary
The Aerosol Research Observation Station (AEROS) located in West Texas was designed to continuously measure atmospheric particles, including different particulate matter sizes, total particle number concentration, and size distribution. This article provides a description of AEROS as well as an intercomparison of the different instruments using laboratory and atmospheric particles, showing similar concentration as well to distinguish between various pollution events (natural vs. anthropogenic).
The Aerosol Research Observation Station (AEROS) located in West Texas was designed to...
