A study of seasonal variation and impact of geology on gamma radiation levels of district Faridabad of State Haryana, India

In the present study, 366 locations were selected from the Faridabad district of Haryana, India, for seasonal gamma radiation measurements in indoor/outdoor environments. It was measured by a radiation monitor PM 1405 (Polimaster instrument/Republic of Belarus). The measured gamma was statistically analysed using the Wilcoxon signed-ranks test, Shapiro–Wilk test, Mann–Whitney test, and ANOVA test. The significance value of the outdoor gamma dose rate in winter (OGDR_W) is found to be less than the significance level (0.05), indicating that the geology has a significant impact on OGDR_W. The estimated annual effective dose was related to the values stated by UNSCEAR and ICRP.