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

Author

Williams, David E. ; Salmond, Jennifer ; Yung, Yu Fai ; Akaji, Jin ; Wright, Bryon ; Wilson, Jarod ; Henshaw, Geoffrey S. ; Wells, D. Brett ; Ding, George ; Wagner, John ; Laing, Greer

Author_Institution

Dept. of Chem., Univ. of Auckland, Auckland, New Zealand

fYear

2009

fDate

25-28 Oct. 2009

Firstpage

1099

Lastpage

1104

Abstract

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 O₃ and NO₂ 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.

Keywords

atmospheric techniques; gas sensors; nitrogen compounds; ozone; NO₂; O₃; WO₃; air quality monitoring network; low-cost nitrogen dioxide measurement instruments; low-cost ozone measurement instruments; track reference analysers; tungstic oxide response; Atmosphere; Atmospheric measurements; Conductivity; Gases; Instruments; Interference; Microstructure; Monitoring; Nitrogen; Pollution measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2009 IEEE

Conference_Location

Christchurch

ISSN

1930-0395

Print_ISBN

978-1-4244-4548-6

Electronic_ISBN

1930-0395

Type

conf

DOI

10.1109/ICSENS.2009.5398568

Filename

5398568