Variation in calcium and magnesium ratio with increasing electrical conductivity of groundwater from shallow basaltic aquifers of Maharashtra (India).
The hydrochemical investigations of 523 groundwater samples from shallow basaltic aquifers of Maharashtra (India) have shown that the Ca/Mg ratio decreases gradually in the groundwater with increasing EC. The ratio was found high for the groundwater having EC less than 500 microS/cm representing a typical water from the basaltic aquifer having more Ca than Mg. The ratio decreases beyond EC of 500 microS/cm showing an increase in concentration of Mg as compared to Ca. The Mg concentration reaches maximum in the groundwater having EC greater than 2000 microS/cm. This decrease in Ca/Mg ratio with increase in mineralisation is possibly due to the percolation of domestic sewage and animal waste to groundwater.
Central Ground Water Board (CGWB), Central Region, Civil Lines, Nagpur-440 001, Maharashtra, India.
Arun N
AN
Tiwari
Vijay P
VP
Nawale
Jivesh A
JA
Tambe
Y
Y
Satyakumar
D000383:Agriculture; D002118:Calcium / Q000032:analysis*; D002712:Chlorides / Q000032:analysis; D004553:Electric Conductivity; D004784:Environmental Monitoring; D060587:Groundwater / Q000032:analysis*; D007194:India; D008274:Magnesium / Q000032:analysis*; D009566:Nitrates / Q000032:analysis; D012722:Sewage; D017640:Silicates; D014874:Water Pollutants, Chemical / Q000032:analysis
D002712:Chlorides; D009566:Nitrates; D012722:Sewage; D017640:Silicates; D014874:Water Pollutants, Chemical; C060346:basalt; D008274:Magnesium; D002118:Calcium