Authors: Lalnunpuia, Remlalsiama, Lalmuanawma Chhangte
Abstract: Radon gas concentration at different depth beneath the ground surface is studied at different oil exploration areas of Mizoram, India. The oil exploration areas of Thenzawl(TZ) in Serchhip district, is studied. The main instrument utilized for the study was RnDuo machine devised to survey Radon 222 (222Rn). The other instrument is a soil probe of 1mtr long to be baptised at different depth. The study was conducted at four different depths namely 10cm, 30cm, 50cm and 70cm. For each oil exploration areas, an in-situ measurement of soil gas was carried out at three different spots to cover the oil fields. The minimum value of radon gas concentration is observed at TZ-2 spots at 10cm deep; and the maximum concentration is recorded at TZ-2 spot at 70cm deep. The radon gas concentration beneath the soil, within the study area ranges from 0.14 kBq/m3 to 1.37 kBq/m3. The Radon gas concentration obtained in these areas are below the worldwide average of 35-40 kBq/m3.(UNSCEAR 2000).
DOI: http://doi.org/10.5281/zenodo.20948158
