1. a Department of Climate, Air and Sustainability , Netherlands Organisation for Applied Scientific Research , TNO , Utrecht , The Netherlands
2. b Centre for Environmental Health , National Institute for Public Health and the Environment (RIVM) , Bilthoven , The Netherlands
3. c Empa, Swiss Federal Laboratories for Materials Science and Technology , Dubendorf , Switzerland
4. d Swedish National Road and Transport Research Institute , Linköping , Sweden
5. e National Centre for Atmospheric Science, Division of Environmental Health and Risk Management, School of Geography, Earth & Environmental Sciences , University of Birmingham , Birmingham , United Kingdom
6. f Department of Environmental Sciences/Center of Excellence in Environmental Studies , King Abdulaziz University , Jeddah , Saudi Arabia
7. g Department of Applied Environmental Science (ITM) , Stockholm University , Stocholm , Sweden
8. h Environment and Health Administration , Stockholm , Sweden
9. i Department of Urban Environment and Safety , Netherlands Organisation for Applied Scientific Research , Utrecht , The Netherlands
10. j Ministry of Infrastructure and Environment Directorate Climate and Air Quality , The Hague , The Netherlands
11. k Aristotle University Thessaloniki, Laboratory of Applied Thermodynamics , Thessaloniki , Greece
12. l Institute for Work and Health , Lausanne , Switzerland
13. m Institute for Risk Assessment Sciences , Utrecht , The Netherlands