Use of stable and unstable isotopes to study the effect of the disposal of fly ash on the pollution of shallow groundwaters: the example of the Koradi and Khaperkheda thermal power plants (Maharashtra, India).

In this work we studied the impact on local water resources of fly ash produced in the Koradi and Khaperkheda thermal power plants (district of Nagpur, Maharashtra - India) where sludge is disposed in three large ponds established in an area where the population of many small villages uses groundwaters for drinking and domestic purposes.