Performance assessment of NOVA SDS011 low-cost PM sensor in various microenvironments

Over the last 10 years, as a possible alternative to the conventional approach to air quality monitoring, real-time monitoring systems that use low-cost sensors and sensor platforms have been frequently applied. Generally, the long-term characteristics of low-cost PM sensors and monitoring have not...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2022-09, Vol.194 (9), p.595-595, Article 595
Main Authors: Božilov, Aca, Tasić, Viša, Živković, Nenad, Lazović, Ivan, Blagojević, Milan, Mišić, Nikola, Topalović, Dušan
Format: Article
Language:English
Subjects:
Air
Air monitoring
Air quality
Atmospheric Protection/Air Quality Control/Air Pollution
Earth and Environmental Science
Ecology
Ecotoxicology
Environment
Environmental Management
Environmental monitoring
Environmental science
Indoor air pollution
Indoor environments
Instrumentation
Linearity
Low cost
Microenvironments
Monitoring systems
Monitoring/Environmental Analysis
Monitors
Particulate matter
Performance assessment
Performance testing
Sensors
Work platforms
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Summary:Over the last 10 years, as a possible alternative to the conventional approach to air quality monitoring, real-time monitoring systems that use low-cost sensors and sensor platforms have been frequently applied. Generally, the long-term characteristics of low-cost PM sensors and monitoring have not been thoroughly documented except for a few widely used sensors and monitors. This article addresses the laboratory and field validation of three low-cost PM monitors of the same type that use the NOVA SDS011 PM sensor module over a 1-year period. In outdoor environments, we co-located low-cost PM monitors with GRIMM EDM180 monitors at the National Air Quality Monitoring stations. In indoor environments, we co-located them with a Turnkey Osiris PM monitor. Several performance aspects of the PM monitors were examined: operational data coverage, linearity of response, accuracy, precision, and inter-sensor variability. The obtained results show that inter-monitor R values were typically higher than 0.95 regardless of the environment. The tested monitors demonstrate high linearity in comparison with PM 10 and PM 2.5 concentrations measured in outdoor air with reference-equivalent instrumentation with R 2 values ranging from 0.52 up to 0.83. In addition, very good agreement (R 2 values ranging from 0.93 up to 0.97) with the gravimetric PM 10 and PM 2.5 method is obtained in the indoor environment (30 
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-022-10290-7