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Sensors 2016, 16(10), 1698; doi:10.3390/s16101698

Performance Evaluation and Community Application of Low-Cost Sensors for Ozone and Nitrogen Dioxide

1
Office of Research and Development, U.S. Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, USA
2
Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, USA
3
Jacobs Technology Inc., 600 William Northern Boulevard, Tullahoma, TN 37388, USA
4
NASA Langley Research Center, 11 Langley Boulevard, Hampton, VA 23681, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Spas D. Kolev
Received: 25 August 2016 / Revised: 5 October 2016 / Accepted: 7 October 2016 / Published: 13 October 2016
(This article belongs to the Section Chemical Sensors)
View Full-Text   |   Download PDF [3954 KB, uploaded 13 October 2016]   |  

Abstract

This study reports on the performance of electrochemical-based low-cost sensors and their use in a community application. CairClip sensors were collocated with federal reference and equivalent methods and operated in a network of sites by citizen scientists (community members) in Houston, Texas and Denver, Colorado, under the umbrella of the NASA-led DISCOVER-AQ Earth Venture Mission. Measurements were focused on ozone (O3) and nitrogen dioxide (NO2). The performance evaluation showed that the CairClip O3/NO2 sensor provided a consistent measurement response to that of reference monitors (r2 = 0.79 in Houston; r2 = 0.72 in Denver) whereas the CairClip NO2 sensor measurements showed no agreement to reference measurements. The CairClip O3/NO2 sensor data from the citizen science sites compared favorably to measurements at nearby reference monitoring sites. This study provides important information on data quality from low-cost sensor technologies and is one of few studies that reports sensor data collected directly by citizen scientists. View Full-Text
Keywords: nitrogen dioxide; ozone; low-cost sensors; electrochemical sensor; performance evaluation; citizen science nitrogen dioxide; ozone; low-cost sensors; electrochemical sensor; performance evaluation; citizen science
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Duvall, R.M.; Long, R.W.; Beaver, M.R.; Kronmiller, K.G.; Wheeler, M.L.; Szykman, J.J. Performance Evaluation and Community Application of Low-Cost Sensors for Ozone and Nitrogen Dioxide. Sensors 2016, 16, 1698.

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