Hot springs are also found at Taftan, especially at over altitude. An analysis of five springs in May 2012 indicated temperatures of and flow rates of . The waters are very acidic due to the formation of H2SO4 from magmatic gases, including the oxidation of H2S. The hot waters around Taftan contain large quantities of boron, probably because the hydrothermal system of Taftan is young and receives input of host rocks containing B