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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Studies on radon in soil, its concentration in the atmosphere and gamma exposure rate around Mysore city, India
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Studies on radon in soil, its concentration in the atmosphere and gamma exposure rate around Mysore city, India

机译：研究印度迈索尔市周围土壤中的ra，大气中的浓度和伽马暴露率

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摘要

Concentrations of radon in soil, rate of its exhalation from the ground surface and its concentration in the atmospheric air have been studied in and around Mysore city (12deg N and 76deg E). Variation of radon concentration in the soil-gas under dry and wet conditions at different depths was also studied. Radon in soil-gas was found to increase with depth and decrease with increase in moisture content of the soil. Radon in soil varies from 0.11 to 11.85 kBq mu-3 with a median of 1.92 kBq mu-3. The annual average values of radon and its progeny concentrations in the atmosphere vary from 15.33 to 47.81 Bq mu-3 with a median value of 24.36 Bqmu-3 and 0.08 to 3.54 mWL with a median value of 0.33 mWL respectively. Good correlations were observed between radon in soil, radon exhalation rate from the ground surface and radon concentration in the atmosphere in these locations. u226Ra in soil at these locations was also estimated using the HPGe detector. The activity of u226Ra varies from 11.3 to 74.2 Bq kgu-1. Radon concentration in soil-gas shows good correlation with the activity of u226Ra in soil. The correlation coefficient was 0.76.
机译：在迈索尔市（北纬12度和东经76度）及其周围地区研究了土壤中in的浓度，从地面呼出的rate的速率以及其在大气中的浓度。还研究了干，湿条件下不同深度下土壤气体中ra浓度的变化。发现土壤气体中的随深度增加而增加，随土壤含水量的增加而减少。土壤中的在0.11至11.85 kBq mu-3之间变化，中位数为1.92 kBq mu-3。大气中and及其子代浓度的年平均值在15.33至47.81 Bq mu-3之间，中位数为24.36 Bqmu-3，在0.08至3.54 mWL之间，中位数为0.33 mWL。在这些位置，土壤中的,、地表的ra呼出率与大气中的concentration浓度之间观察到良好的相关性。还使用HPGe检测器估算了这些位置的土壤中的u226Ra。 u226Ra的活性在11.3至74.2 Bq kgu-1之间变化。土壤气体中的concentration浓度与土壤中u226Ra的活性具有良好的相关性。相关系数为0.76。

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