Development of low-cost ozone and nitrogen dioxide measurement instruments suitable for use in an air quality monitoring network

We demonstrate low-cost ozone and nitrogen dioxide measurement instruments suitable for use in an air quality monitoring network. The instruments are based on the gas response of tungstic oxide at elevated temperature. We have shown that with careful attention to detail, small, robust instruments ca...

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Bibliographic Details
Main Authors: Williams, D.E., Salmond, J., Yu Fai Yung, Akaji, J., Wright, B., Wilson, J., Henshaw, G.S., Wells, D.B., Ding, G., Wagner, J., Laing, G.
Format: Conference Proceeding
Language:English
Subjects:
Atmosphere
Atmospheric measurements
Conductivity
Gases
Instruments
Interference
Microstructure
Monitoring
Nitrogen
Pollution measurement
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Summary:We demonstrate low-cost ozone and nitrogen dioxide measurement instruments suitable for use in an air quality monitoring network. The instruments are based on the gas response of tungstic oxide at elevated temperature. We have shown that with careful attention to detail, small, robust instruments can be made, with sensitivity for O 3 and NO 2 less than 10 part-per-billion (ppb), and which track reference analysers in the atmosphere to within 10 ppb over periods of months, without recalibration.
ISSN:1930-0395
2168-9229
DOI:10.1109/ICSENS.2009.5398568