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|Images of indicator installed on the Copenhagen City Hall, measuring the air quality on the street below
Download sign and explanation of levels here (.pdf)
View from City Hall towards H.C. Andersens Boulevard
Seen from the street
The sign on the street with information on the different levels.
Seen from within, the acentuator that moves the window is connected to a PC that collects the data from the Internet and is updated 4 times a day.
View towards Tivoli.