Environmental issues in Egypt dam 98% of that sediment fell under the dam. Environmentally, the Aswan Dam has contributed to numerous issues for Egyptians. The expansion of desert areas since the Aswan High Dam's construction in 1970 has increased in soil salinity which allowed for waterborne diseases to emerge. In 1994, 28% of Egypt's soils were damaged by significant levels of salinity. The importance of water resources for Egyptians has contributed to the creation of agencies, such as the Egyptian Ministry of State for Environmental Affairs, that promote and protect Egypt's natural resources. Environmental issues in Egypt Egypt's environmental problems include water scarcity, air
Aswan Dam year. The annual crop consumptive use of water is about . Hence, the overall irrigation efficiency is 38/46 = 0.82 or 82%. This is a relatively-high irrigation efficiency. The field irrigation efficiencies are much less, but the losses are reused downstream. This continuous reuse accounts for the high overall efficiency. The following table shows that the equal distribution of irrigation water over the branch canals taking off from the one main irrigation canal, the Mansuriya Canal near Giza, leaves much to be desired: The salt concentration of the water in the Aswan reservoir is about , a very low salinity