Vol. 2, Issue 7, Part G (2016)

Abstract
Radon contributes more than half of the global effective dose. There has been reported some health problems in people near the dwellings of the Sisdol Landfill Site (SLS). In this study, Radon concentration in the dwellings near SLS has been measured by using LR-115 type II plastic track detector based on SSNTD Technique. In addition, radon concentration in these dwellings and Kathmandu city has been compared. Radon concentration varied from 7114 Bq/m3 to 2026344 Bq/m3 and annual effective dose varied from 1.3 to 34.99 mSv/yr. Since Radon concentration in some of the dwellings is extremely higher than the ICRP maximum exposure limit, further study and implementation of safety guidelines in these area is necessary.