The residual fraction is that which includes all the waste that has not been collected in the selective collection fractions and that, therefore, cannot receive quality recycling.
Moving towards a zero waste society means reducing as much as possible the amount of waste collected with the residual fraction.
The residual fraction generation per capita in Catalonia has been reduced by 43% in the period 2000-2022, although it has stagnated at around 300 kg/inhabitant/year since 2010.
The reduction of the generation of the residual fraction is closely related to the increase of selective collection in the territory.