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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 10ppb over periods of months, without recalibration. ©2009 IEEE.

Original publication

DOI

10.1109/ICSENS.2009.5398568

Type

Conference paper

Publication Date

01/12/2009

Pages

1099 - 1104