Current Science

The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).

If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs.

Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader. To download the PDF, click the Download link above.

Fullscreen Fullscreen Off


A systematic study of background radiation in southeast Haryana, India, i.e. the Jhajjar, Sonipat and Rohtak districts, was initiated to establish reliable baseline data on the background radiation level of the region. Worldwide many areas have been found with high background gamma radiation, leading to several types of disorders in human beings. So the present study was carried out as a precautionary step. There are two natural sources of ionizing radiation – cosmic and ter-restrial. Isotopes of heavy elements and their decay products present in the Earth’s crust are the major sources of terrestrial radiation. A radiation survey meter was used for the analysis of gamma radiation. In total, 50 locations were chosen for the survey. Gamma radiation showed variation from 82 to 184 nSv/h, with the mean value of 131.64 ± 5.56 nSv/h. An independ-ent t-test at a significance level of 5% was applied for comparison. Annual effective dose and excess lifetime cancer risk were computed to determine the number of cancer cases due to outdoor radiation.

Keywords

Annual Effective Dose, Cancer Risk, Cosmic Rays, Gamma Radiation, Heavy Metals
User
Notifications
Font Size