Cairsens NO2: A Miniature Device Dedicated to the Indicative Measurement of Nitrogen Dioxide in Ambient Air

Abstract

This paper reports the study of data quality of Cairsens NO2 environmental sensors. In order to evaluate sensors performances, the investigation was performed through: a prospective follow-up of short-term and long terms drifts, the evaluation of the effects of environmental conditions upon sensors measurements as well as the evaluation of the ozone-filter lifetime. In this purpose, a dedicated test bench has been developed to expose sensors to a fixed concentration of ozone while recording sensors response.

Keywords

• low-cost gas sensor
• indicative measurement
• Air Quality Directive
• ambient air pollution
• nitrogen dioxyde