**7. Acknowledgement**

The Common Scents project is a concerted effort between the Research Studio iSPACE, the MIT SENSEable City Lab, the City of Cambridge's Public Health Department and the Harvard University School of Engineering and Applied Sciences. We would like to thank all internal and external collaborators for making this project happen.

Several technical parts of this research have been funded through the European Commission in the course of the FP7 GENESIS project. Furthermore, the Austrian Ministry of Science and Research (BMWF) funded pieces of the efforts in the Research Studio iSPACE.

The research described in this project by one of the authors (REB) was funded in part by the Singapore National Research Foundation (NRF) through the Singapore-MIT Alliance for Research and Technology (SMART) Center for Environmental Sensing and Monitoring (CENSAM).

The Copenhagen Wheel team from the SENSEable City Laboratory, MIT is composed of Christine Outram (Project Leader), Rex Britter, Andrea Cassi, Xiaoji Chen, Jennifer Dunnam, Paula Echeverri, Myshkin Ingawale, Ari Kardasis, E Roon Kang, Sey Min, Assaf Biderman and Carlo Ratti The courier cyclists were organized by Signe Gaarde in Copenhagen.
