Radium Content of Some River Waters of India

The radium content of river waters collected from eighteen different Indian rivers has been measured. The river water can usually be classified into two categories: limpid and turbid. The radium content of limpid waters has been found to be lower (∼10^-16g/ml) than that of its turbid Partner (∼10^-15g/ml). In the latter case, the radium contents both of the filtered component and the sediment have been separately measured. The sediment invariably exhibits a higher value.