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

Sensors

Keith G. Kronmiller¹  Michael L. Wheeler¹  Melinda R. Beaver²  Rachelle M. Duvall³  Russell W. Long³  James J. Szykman³ 

[1] Jacobs Technology Inc., 600 William Northern Boulevard, Tullahoma, TN 37388, USA;Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, USA;Office of Research and Development, U.S. Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, USA;

关键词: nitrogen dioxide;    ozone;    low-cost sensors;    electrochemical sensor;    performance evaluation;    citizen science;   

DOI  :  10.3390/s16101698

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown