دورية أكاديمية
Radon ((222)Rn) concentration in indoor air near the coal mining area of Nui Beo, North of Vietnam.
| العنوان: | Radon ((222)Rn) concentration in indoor air near the coal mining area of Nui Beo, North of Vietnam. |
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| المؤلفون: | Nhan DD; Vietnam Atomic Energy Institute, Ha Noi, Viet Nam. dangducnhan50@gmail.com, Fernando CP, Thu Ha NT, Long NQ, Thuan DD, Fonseca H |
| المصدر: | Journal of environmental radioactivity [J Environ Radioact] 2012 Aug; Vol. 110, pp. 98-103. Date of Electronic Publication: 2012 Mar 22. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Applied Science Publishers Country of Publication: England NLM ID: 8508119 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1700 (Electronic) Linking ISSN: 0265931X NLM ISO Abbreviation: J Environ Radioact Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Barking, Essex : Elsevier Applied Science Publishers, |
| مواضيع طبية MeSH: | Coal Mining*, Air Pollution, Indoor/*analysis , Radon/*analysis, Radiation Monitoring ; Vietnam |
| مستخلص: | Concentrations of radioactive radon gas ((222)Rn) were measured using passive monitors based on LR115 solid state track detectors during June-July 2010 in indoor air of dwellings in the Nui Beo coal mining area, mostly in Cam Pha and Ha Long coastal towns, Quang Ninh province, in the North of Vietnam. Global results of (222)Rn concentrations indoors varied from ≤6 to 145 Bq m(-3) averaging 46 ± 26 Bq m(-3) (n = 37), with a median value of 47 Bq m(-3). This was similar to outdoor (222)Rn concentrations in the region, averaging 43 ± 19 Bq m(-3) (n = 10), with a median value of 44 Bq m(-3). Indoor (222)Rn concentrations in the coastal town dwellings only were in average lower although not significantly different from indoor (222)Rn concentrations measured at the coal storage field near the harbor, 67 ± 4 Bq m(-3) (n = 3). Furthermore, there was no significant difference in the average (222)Rn concentration in indoor air measured in the coastal towns region and those at the touristic Tuan Chau Island located about 45 km south of the coal mine, in the Ha Long Bay. The indoor (222)Rn concentration in a floating house at the Bai Tu Long Bay, and assumed as the best estimate of the baseline (222)Rn in surface air, was 27 ± 3 Bq m(-3) (n = 3). Indoor average concentration of (222)Rn in dwellings at the Ha Noi city, inland and outside the coal mining area, was determined at 30 Bq m(-3). These results suggest that (222)Rn exhalation from the ground at the Nui Beo coal mining area may have contributed to generally increase (222)Rn concentration in the surface air of that region up to 1.7 times above the baseline value measured at the Bai Tu Long Bay and Ha Noi. The average indoor concentration of (222)Rn in Cam Pha-Ha Long area is about one-third of the value of the so-called Action Level set up by the US EPA of 148 Bq m(-3). Results suggest that there is no significant public health risk from (222)Rn exposure in the study region. (Copyright © 2012 Elsevier Ltd. All rights reserved.) |
| المشرفين على المادة: | Q74S4N8N1G (Radon) |
| تواريخ الأحداث: | Date Created: 20120327 Date Completed: 20120829 Latest Revision: 20131121 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1016/j.jenvrad.2012.02.008 |
| PMID: | 22445878 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1879-1700 |
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| DOI: | 10.1016/j.jenvrad.2012.02.008 |