Report of laboratory and in-situ validation of micro-sensor for monitoring ambient air - Ozone micro-sensors, αSense, model B4 O3 sensors

The aim of this report was to evaluate and validate O3-B4 sensors of αSense Inc. (UK) with laboratory and field tests under ambient air conditions corresponding to a specific micro-environment: background station, rural areas. This report presents the evaluation of the performances and determination of the laboratory measurement uncertainty of the sensor values, compared to uncertainties fixed by the Data Quality Objective (DQO) of the European Air Quality Directive for indicative methods.