The proportion of putrescibles for the two cities varies from 76.5% to 90.4% for the low ranking area which
includes peripheral residential area, and from 73.4% to 83.8% for the medium ranking area characterized by the
existence of collective and individual housing, public equipment and shops. Concerning the high ranking area its
results are varying from 66.9% to 76.3%. This area includes the city centre, which represents the core of the city
textile trade and hotels, etc. These latter results show that the factors of the area of study have significant effects on
the surroundings and the intimate interactions between climate and diet, as for instance the highest rates of pulses
and pasta consumption in this region.