Geoscience Reference
In-Depth Information
The area, which TDS content in groundwater system may be more than
4,000 mg/l is likely to be doubled within the next two decades from
the present size in between river and town towards north and west of
Dindigul town.
The Scenario-II (Fig. 3) has shown that that at the end of a 10-year
period (2010) TDS concentration “
C
” will be same of Scenario-I, but may
still be quite high at some locations. Scenario-III (Fig. 4) can be seen that at
the end of a 20-year period (2020) TDS concentration “
C
” will be reduced
but may still be quite high at some places. At the centre of the tannery
cluster TDS concentration is reduced but in the northern side it is increasing
order due to movement of the pollutant in advection nature. Prognosis using
the model confirms that the polluted area as well as the concentration of
pollutants in the groundwater will continue to increase in future. The study
also indicated that even if the pollutant sources were reduced to 50% of the
present level, the TDS concentration level in the groundwater, even after
two decades, would not be reduced below 50% TDS of 2001.
Fig. 3.
Predicted TDS concentration (mg/l, January 2010).
