Using low-cost portable air quality (AQ) monitoring devices is a growing trend in personal exposure studies, enabling a higher spatio-temporal resolution and identifying acute exposure to high concentrations. Comprehension of the results by participants is not guaranteed in exposure studies. However, information on personal exposure is multiplex, which calls for participant involvement in information design to maximise communication output and comprehension. This study describes and proposes a model of a user-centred design (UCD) approach for preparing a final report for participants involved in a multi-sensor personal exposure monitoring study performed in seven cities within the EU Horizon 2020 ICARUS project. Using a combination of human-centred design (HCD), human-information interaction (HII) and design thinking approaches, we iteratively included participants in the framing and design of the final report. User needs were mapped using a survey (n = 82), and feedback on the draft report was obtained from a focus group (n = 5). User requirements were assessed and validated using a post-campaign survey (n = 31). The UCD research was conducted amongst participants in Ljubljana, Slovenia, and the results report was distributed among the participating cities across Europe. The feedback made it clear that the final report was well-received and helped participants better understand the influence of individual behaviours on personal exposure to air pollution.

Atmospheric Chemistry and Innovative Technologies Laboratory NCSR Demokritos 15310 Athens Greece

Department of Environmental Sciences Jožef Stefan Institute 1000 Ljubljana Slovenia

Department of Science Technology and Society University School for Advanced Study IUSS 27100 Pavia Italy

Environmental Engineering Laboratory Department of Chemical Engineering Aristotle University of Thessaloniki 54124 Thessaloniki Greece

EUCENTRE European Centre for Training and Research in Earthquake Engineering 27100 Pavia Italy

HERACLES Research Center on the Exposome and Health Center for Interdisciplinary Research and Innovation 57001 Thessaloniki Greece

Institute of Health Carlos 3 National Environmental Health Centre Department of Atmospheric Pollution 28220 Madrid Spain

Jožef Stefan International Postgraduate School 1000 Ljubljana Slovenia

Laboratory of Chemistry and Environment Aix Marseille University 13003 Marseille France

RECETOX Faculty of Science Masaryk University 62500 Brno Czech Republic

Swiss Tropical and Public Health Institute CH 4051 Basel Switzerland

University of Basel CH 4001 Basel Switzerland

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Harmonization and Visualization of Data from a Transnational Multi-Sensor Personal Exposure Campaign