Continuous monitoring of outdoor natural gamma absorbed dose rate in air: a long-term study in Kolkata, West Bengal, India

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-10-14 DOI:10.1007/s10967-024-09815-w

Pratip Mitra, Saurabh Srivastava, G. Priyanka Reddy, Saurabh Garg, A. Vinod Kumar

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Abstract

This study contributes to the overarching Indian Environmental Radiation Monitoring Network initiative, concentrating on the continual assessment of the gamma absorbed dose rate in outdoor air attributable to natural gamma radiation in Kolkata, West Bengal, India. Over a span of fourteen years (2011–2024), data were gathered from 32 monitoring sites within the city utilizing permanently installed Geiger-Mueller detector-based environmental radiation monitors. This paper offers an analysis of extensive findings from long-term monitoring efforts. The absorbed gamma dose rate in outdoor air varied among the monitoring sites, ranging from 78 ± 5 to 137 ± 4 nGy h^− 1, with a mean value of 107 ± 12 nGy h^− 1. The estimated mean annual effective dose due to outdoor natural gamma radiation ranged from 0.10 ± 0.01 to 0.17 ± 0.01 mSv y^− 1, with an overall mean of 0.13 ± 0.01 mSv y⁻¹.

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空气中室外自然伽马吸收剂量率的连续监测：印度西孟加拉邦加尔各答的长期研究

这项研究有助于总体印度环境辐射监测网络倡议，其重点是持续评估印度西孟加拉邦加尔各答室外空气中可归因于自然伽马辐射的伽马吸收剂量率。在14年（2011-2024年）的时间里，利用永久安装的盖格-穆勒探测器的环境辐射监测仪，从城市内的32个监测点收集了数据。本文对长期监测工作的广泛发现进行了分析。各监测点室外空气吸收γ剂量率变化范围为78±5 ~ 137±4 nGy h−1，平均值为107±12 nGy h−1。室外自然伽马辐射估计的年平均有效剂量范围为0.10±0.01至0.17±0.01毫西弗·y - 1，总体平均为0.13±0.01毫西弗·y - 1。

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.