کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1875832 1532092 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Radon and radium concentrations in drinkable water supplies of the Thu Duc region in Ho Chi Minh City, Vietnam
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Radon and radium concentrations in drinkable water supplies of the Thu Duc region in Ho Chi Minh City, Vietnam
چکیده انگلیسی


• We studied 222Rn and 226Ra levels of drinkable water sources in the Thu Duc, Vietnam.
• 222Rn found in groundwater did not originate from 226Ra compounds soluble in water.
• High levels of 226Ra in groundwater was explained by pH and alkaline conditions.

The results of 222Rn and 226Ra activity measurements in drinkable water supplies of the Thu Duc region in Ho Chi Minh City, Vietnam, are presented in this paper. The measurements were performed using a RAD 7 radon detector manufactured by Durridge Company, Inc. Mean concentrations of 222Rn and 226Ra were found to be 0.11±0.01 Bq l−1 and 0.11±0.02 Bq l−1 in 14 drinking water samples. They are 0.12±0.01 Bq l−1 and 0.10±0.02 Bq l−1 in 15 tap water samples, respectively. The mean 222Rn concentration of 1.40±0.03 Bq l−1 in the 20 groundwater samples of this study is also lower than the WHO advised level of 100 Bq l−1. Fifty percent of groundwater samples analysed have 226Ra levels in excess of the USEPA recommended maximum contaminant level of 0.185 Bq l−1. The occurrence of elevated concentrations of 226Ra in groundwater samples was explained by pH and alkaline conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 105, November 2015, Pages 219–224
نویسندگان
, , , ,