The study aimed to determine the impact of COVID-19 on values of annual effective dose equivalent of the natural gamma dose rate of Balod, Durg and Bemetara districts of Chhattisgarh (India). COVID-19 is a severe problem for many countries and to control and prevent the spread of this problem, the lockdown approach has been implemented in many countries, including India. In this lockdown situation, almost all people stay at home for 24 h. Due to the present status of COVID-19, the Indian government also fixed the 67 days lockdown and one day was already successfully done as Janta Curfew, which worked the same as a lockdown. The value of indoor gamma dose rates was reported to be higher in most places compared to the outdoor gamma dose rate, but in this pandemic situation, occupancy factor values are not applicable as recommended by UNSCEAR for calculation of annual effective dose equivalent (AEDE). Therefore, the present study introduces the new equations, which can measure the extra AEDE value during lockdown for adults, children and infants.

中文翻译：

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COVID-19 大流行期间封锁对自然伽马辐射年有效剂量当量值的影响

该研究旨在确定 COVID-19 对印度恰蒂斯加尔邦 Balod、Durg 和 Bemetara 地区自然伽马剂量率的年有效剂量当量值的影响。COVID-19 对许多国家来说是一个严重的问题，为了控制和防止这一问题的蔓延，包括印度在内的许多国家都实施了封锁措施。在这种封锁的情况下，几乎所有人都呆在家里 24 小时。由于 COVID-19 的现状，印度政府还修复了 67 天的封锁，并且有一天已经成功完成了 Janta Curfew，其工作方式与封锁相同。据报道，与室外伽马剂量率相比，大多数地方的室内伽马剂量率值更高，但在这种大流行情况下，UNSCEAR 推荐的用于计算年有效剂量当量 (AEDE) 的占用因子值不适用。因此，本研究引入了新的方程，可以测量成人、儿童和婴儿在锁定期间的额外 AEDE 值。