The doctoral students from the 1st UWI cohort elaborated seven common topics based on their experience and in discussion with their supervisors. These common topic were:

• Urban soil – atmosphere interface [1]
• Interfaces in urban surface waters [2]
• Surface water – groundwater interactions [3]
• Interfaces in sewer systems [4]
• Micropollutants [5]
• Biogeochemical processes [6]
• Modelling [7]