Perugia
In Perugia there is a mobile laboratory to point out
the carbon monoxide, the
ozone, the sulpur dioxide, powders
and hydrocarbons.
The mobile laboratory has been used in different parts of the town, but it was kept in Fontivegge for a certain time.
In Pietrafitta, in the surroundings of the E.N.E.L.
thermo-electrical plant, the presence of carbon monoxide, ozone, sulphur dioxide,
hydrocarbons and suspended particles has been checked in 1993/1994 and 1995/1996.