Ingestion/inhalation dose due to intake of ²²² Rn in the water of district Gurugram, Southern Haryana, India, measured by alpha scintillometry technique

Estimation of Inhalation and Ingestion Dose Due to Radon Concentration in Drinking Water Samples of Shankaraghatta Forest Environment, Karnataka, India

“…It is clear from the data (Table 1) that all the water samples of the study area contained radon values of less than 40Bq l −1 . The average measured radon concentration in drinking water samples of the Shankaraghatta region was found to be 13.10 Bq l −1 , which is higher compared to the US Environmental Protection Agency (16) for public protection against radon exposure in drinking water supplies, and lower compared to the WHO's recommended radon in drinking water limit, which advises a 100 Bq l −1 action level for public water supplies (18) . When these data are compared, it is clear that the major source of health risk in the case of water is radon inhalation.…”

“…Figure 5 shows the variation of radon concentration in different sources of drinking water samples, the graph clearly shows that the radon concentration from groundwater samples such as bore well, hand pumps, and open well has shown higher concentrations than the surface water samples. This may be due to the fact that the depth of the bore well and hand pump, greater the depth means it allows water to interact with the aquifers significantly, and also this may be due to the radionuclides present in the soil and rock system (7,10,12,18) . But the radon concentration in the tap water (TP), backwater (BKW), and pond (P) have shown lower radon concentration this may be due to dissolved radon being disrobed and later released along the path water body source and the sample collection point.…”