Why are there so much yellow dust on the balconies of Milan?

A thin layer of yellow dust on the tiles of the balconies, on the window sills and on the cars. It happens in Milan and in the hinterland of the city. A widespread phenomenon that is creating a real debate.

The answer is simple or almost trivial. It is pollen. More precisely, pollen from Cedar of Lebanon (Cedrus Libani), a species belonging to the Pinaceae family. The tree has a late flowering compared to other plants (it blooms between September and November).

The pollen produced…