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The Effect of Uncertainty and Variability on the Economic Appraisal of the Nura Clean up Project in Central Kazakhstan

Alan Ingham, Lyudmila Yakovleva, Mikhail Ilyushchenko


The River Nura is typical internal steppe river of Kazakhstan. It is concluded by a system of closed lakes of the Tengiz-Kurgaldzhinskaya depression which includes wetlands, an important site for wildlife and internationally significant one for ornithology. The river is subjected to natural cyclic process of variation of its annual flow causing variation of both Lake Tengiz salinity and the area of wetland. In the past, large amounts of mercury were discharged into the River Nura at Temirtau resulting in contamination and prohibited use of the river.

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