The populations of villages established on the plain and on the alluvial cones and which are close to city
centres have increased greatly. In most of these villages, illegal buildings have been constructed on areas that are
I and II class fertile agricultural land. Fertile alluvial soils have been harmed irreversibly, while both
underground and aboveground water resources have been polluted as a result of a lack of refining plants. This
situation has had a significant ecological impact, but thankfully in the last few years refining plants have begun
to be constructed and put into use.