They collected samples every 5k in the 30k long run before the marathon, see Substrate section in http://athlete.maurten.com/
Not the first time; in 2005 the US report about Nicola Calipari's death in Baghdad was redacted (and unredacted by italian newspapers) in the same way.
I found online the project page in the builder's portfolio; by looking at it from the street level I though it was a much simpler structure https://redesco.it/en/projects/generali-towers-sign-board-in...
They collected samples every 5k in the 30k long run before the marathon, see Substrate section in http://athlete.maurten.com/
Not the first time; in 2005 the US report about Nicola Calipari's death in Baghdad was redacted (and unredacted by italian newspapers) in the same way.
I found online the project page in the builder's portfolio; by looking at it from the street level I though it was a much simpler structure https://redesco.it/en/projects/generali-towers-sign-board-in...