The emission limits imposed on TRM by the AIA currently in force are, for several parameters among those monitored, more stringent than those established in the Legislative Decree 152/06, with the goal to maximise the environmental performance of the plant as well as environmental protection.

During the first 24 months following the start-up of the plant, a period established to allow the plant to reach full operating conditions (the so-called “start-up phase”), the limits imposed by AIA for the parameters continuously measured were in line with those established by the national legislation and periodic measurements were carried out quarterly. Since 2015, new limits both for the continuous and periodic measurements of parameters – still in force – have gradually taken over, and the frequency of self-checks is every four months.