Assessment of Radon in groundwater and associated human risk from Sankarabarani River Sub Basin, Southern India

Rajesh Kanna R,Gopinath S,Ponnumani G,Srinivasamoorthy K,Prakash R

doi:10.34256/ijceae1912

Rajesh Kanna R, Gopinath S + Show 3 more

Open Access

https://doi.org/10.34256/ijceae1912

Copy DOI

Abstract

Radon (222Rn) and associated human risk assessment in groundwater from quaternary shallow aquifers of Sankarabarani River sub basin, Southern India has been attempted by considering 41 groundwater samples and analysed for 222Rn using scintillation Radon monitoring system. The Radon ranges between 0.140±0.01 Bq l-1 to 7.869±0.33 Bq l-1 with an average of 1.797±0.12Bq l-1 and found to be within the maximum contamination level of Environmental Protection Agency (11.1 Bq l-1). The doses of ingestion and inhalation calculated for radon varies between 0.709 µSv y-1 to 39.933µSv y-1 with an average of 9.121µSv y-1which is within the prescribed dose limit of 100µSv y-1 by World Health Organisation. Uranium speciation attempted suggests saturated Haiweeite and Soddyite as sources for uranium/radon into the aquifer systems. The Eh-pH diagram suggests uraninite solubility within the pH ranges 6 to 8 within the groundwater environment.

Highlights

Radon (222Rn) and associated human risk assessment in groundwater from quaternary shallow aquifers of Sankarabarani River sub basin, Southern India has been attempted by considering 41 groundwater samples and analysed for 222Rn using scintillation Radon monitoring system
Radon in groundwater seems to be influenced by radioactivity due to its interaction with aquifer materials that climate, soil type and permeability, aquifer lithology and host minerals enriched with radioactive substances [2, 3]. terrain [9]
The aim of the present study is to evaluate the doses encompasses litho units predominantly of calcareous to population resulting from ingestion and inhalation of sandstone, lenses of clay and shale with limestone bands

Summary

Introduction

Radon (222Rn) and associated human risk assessment in groundwater from quaternary shallow aquifers of Sankarabarani River sub basin, Southern India has been attempted by considering 41 groundwater samples and analysed for 222Rn using scintillation Radon monitoring system. Uranium speciation attempted suggests saturated Haiweeite and Soddyite as sources for uranium/radon into the aquifer systems. The Eh-pH diagram suggests uraninite solubility within the pH ranges 6 to 8 within the groundwater environment. Humans are exposed to ionizing radiation occurring solubility its activity in water is higher in comparison with naturally in soil, water air and food and the most significant other natural radionuclide [3]. Major radioactive elements hosted in aquifers are not limited emanation and diffusion from sedimentary mineral grains to uranium, thorium and actinium, of which the uranium containing uranium and radium [10] and its subsequent series are hazardous to health due to its existence in water as movement along the groundwater flow path.

Objectives

Results

Conclusion