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Objectives: To estimate inhalation and ingestion doses due to radon concentration in rural areas of Shankaraghatta forest environment, India. Methods: In this study, the risk due to radon concentration in underground drinking water samples of the Shankaraghatta region has been estimated using emanometry technique. The 44 drinking water samples were collected from different water sources in sample bottles (500 ml) and were carefully sealed to ensure there is no air gap and were analysed within 24 hours by radon bubbler technique using a Lucas cell. Findings: The radon ( 222 Rn) concentration in underground and surface water samples of the entire region varies from 1.10 ± 0.25 Bq l −1 to 30.67 ± 5.10 Bq l −1 with an average value of 13.10 ± 2.2 Bq l −1 , is higher than the USEPA proposed maximum contamination threshold of 11Bql −1 .The Annual Effective Dose Equivalent (AEDE) ranges from 3.86 µSv y −1 to 83.80 µSv y −1 with an average value of 36.35µSv y −1 , which is slightly higher than the global average value. Novelty: The present work focuses on the public health of the study area where such estimation was not carried out. The estimated annual effective, inhalation and ingestion doses due to radon in underground drinking water samples are found to be substantially below the 100 µSvy −1 recommended by WHO and EC. Hence, public of the study area won't receive any serious health hazard due to radon in drinking water and the water is fit for drinking without any additional treatment.

Hydroxypropyl methylcellulose (HPMC) were extensively known material in packaging, agriculture, medicine, electrolytes in solid state batteries and other areas due to the exceptional biocompatibility and easy production, however shows lower mechanical behaviour. The current investigation was embraced to delineate the effect of potassium iodide (KI) on structural and mechanical properties of biopolymer electrolyte films grounded on Hydroxypropyl methylcellulose (HPMC). The liquidation of the salt into the polymer crowd is done by solution cast technique and the X – Ray diffraction (XRD) analyses were used to fix the structural properties of pristine HPMC and composite HPMC films. The crystallinity (Xc) was calculated, the pristine HPMC films shows high level of crystallinity. However improved amorphous spaces of HPMC polymer crowd were exposed in HPMC composite films. The addition of KI had a considerable impact on break elongation. In HPMC, KI showed good intercalation, and large concentrations of KI resulted in crater-like pits on the film surfaces. Reductions in the tensile strength and elastic modulus along with an increase in elongation were noticed in film integrated with KI.