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Countrywide monitoring of absorbed dose rate in air due to outdoor natural gamma radiation in India.
Radiat Prot Dosimetry
; 199(12): 1336-1350, 2023 Jul 21.
Artigo
em Inglês
| MEDLINE
| ID: mdl-37366153
RESUMO
The Indian Environmental Radiation Monitoring Network continuously monitors, throughout India, the absorbed dose rate in air due to outdoor natural gamma radiation, by using Geiger-Mueller detector-based standalone environmental radiation monitors. The network consists of 546 monitors spread across 91 monitoring locations distributed all over the country. In this paper, the countrywide long-term monitoring results are summarised. The measured mean dose rate of the monitoring locations followed a log-normal distribution and ranged from 50 to 535 nGy.h-1 with a median value of 91 nGy.h-1. Due to outdoor natural gamma radiation, the average annual effective dose was estimated to be 0.11 mSv.y-1.