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UP: Fachverband Umweltphysik

UP 4: Atmospheric Chemistry 1

UP 4.2: Vortrag

Dienstag, 17. März 2020, 15:20–15:40, HSZ 105

Individual air pollution exposure assessment using a newly developed smart handheld monitoring device — •Sheng Ye and Mark Wenig — Meteorologisches Institut, Ludwig Maximilians University, Theresienstr. 37, 80333 Munich, Germany

NO2 pollutant in the atmosphere is attracting more and more public attention. People are interested in not only the ambient NO2 levels but also the individual exposure. We developed a sensor-based handheld Air Quality Inspection Box (Airquix) for individual exposure measurements for different pollutants. The Airquix is a portable air monitoring instrument, which is equipped with electrical chemical NO2, O3, NO sensors, NDIR CO2 sensor, OPC PM sensor, environment parameters (T, RH, P), GPS, and a raspberry pi for data logging and display. We use stationary instruments to calibrate the Airquix before and after mobile measurements and achieve a relatively high accuracy, e.g. +/- 5 ppb 5 seconds time resolution for the NO2 measurements. We use several Airquixes to capture different daily activities of different people simultaneously. We distinguish different commutes, in- and outdoor activities and compare the influence of different habits on the personal pollution exposure. The resulting data set can be used for the assessment of health impacts.