Iran’s Shushtar Historical Hydraulic System is under threat of excessive amounts of mineral salt and wastewaters that perpetually pass through the southwestern UNESCO World Heritage.
United Nations Educational Scientific and Cultural Organization
![UNESCO director-general Irina Bokova. [unesco.org]](/sites/default/files/styles/d08_traditional/public/im/Egypt/80306603-copie.jpg?itok=Q3R0eyVf "UNESCO director-general Irina Bokova. [unesco.org]")
