A Quantitative Assessment of Indoor Radon Level and Its Annual Effective Dose in Buildings of Gachin Rural District in Hormozgan Province, Iran
Introduction: Measurement of indoor radon concentration and its determining factors is crucial for improving public health and developing proper methods that can reduce indoor radon concentrations. This study aimed to measure the indoor radon concentration and to examine its variations in relation t...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Mashhad University of Medical Sciences
2021-05-01
|
| Series: | Iranian Journal of Medical Physics |
| Subjects: | |
| Online Access: | https://ijmp.mums.ac.ir/article_16101_64e1d17e81431a88223815f01ef78a76.pdf |
| _version_ | 1830138444519571456 |
|---|---|
| author | ali jamjour Gholamhassan Haddadi Masoud Haghani mohammaad haghparast Mahdieh Afkhami |
| author_facet | ali jamjour Gholamhassan Haddadi Masoud Haghani mohammaad haghparast Mahdieh Afkhami |
| author_sort | ali jamjour |
| collection | DOAJ |
| description | Introduction: Measurement of indoor radon concentration and its determining factors is crucial for improving public health and developing proper methods that can reduce indoor radon concentrations. This study aimed to measure the indoor radon concentration and to examine its variations in relation to variables, such as the construction materials, ventilation, and age of buildings. Material and Methods: Indoor radon concentrations were measured using solid-state nuclear track detectors (SSNTDs) during winter. Each detector was mounted 50-90 cm above the surface flooring of bedrooms and living rooms. After three months of exposure, the detectors were collected and transferred to a laboratory. They were then etched in 6.25 N NaOH solution in a bath at a constant temperature of 90°C for 240 minutes. Next, the detectors were washed with distilled water and dried. The alpha particle tracks were counted using an automatic alpha track counting system. Results: The mean radon concentration was 53.20 Bq/m3,and 94% of the samples had a radon concentration 3, which is the action level proposed by the World Health Organization (WHO). The annual effective dose varied from 0.25 mSvy-1 to 3.05 mSvy-1, with a mean dose of 0.91 mSvy-1. The results showed that the type of constructed materials and ventilation influence the indoor radon concentration in winter. Conclusion: The annual effective dose in the study area was below the global average of 1.15 mSvy-1. Therefore, local residents must be informed about the health risks of high radon concentrations and understand the role of improved ventilation in reducing the indoor radon levels. |
| first_indexed | 2024-12-17T08:26:15Z |
| format | Article |
| id | doaj.art-1df6a40f19884233afd5f236552ede21 |
| institution | Directory Open Access Journal |
| issn | 2345-3672 2345-3672 |
| language | English |
| last_indexed | 2024-12-17T08:26:15Z |
| publishDate | 2021-05-01 |
| publisher | Mashhad University of Medical Sciences |
| record_format | Article |
| series | Iranian Journal of Medical Physics |
| spelling | doaj.art-1df6a40f19884233afd5f236552ede212022-12-21T21:56:46ZengMashhad University of Medical SciencesIranian Journal of Medical Physics2345-36722345-36722021-05-0118317117710.22038/ijmp.2020.45461.170616101A Quantitative Assessment of Indoor Radon Level and Its Annual Effective Dose in Buildings of Gachin Rural District in Hormozgan Province, Iranali jamjour0Gholamhassan Haddadi1Masoud Haghani2mohammaad haghparast3Mahdieh Afkhami41. Radiology Department, Paramedical School, Shiraz University of Medical Sciences, Shiraz, Iran 3. Radiology Department, Paramedical School, Hormozgan University of Medical Science, Bandare-Abbas, Iran.1. Radiology Department, Paramedical School, Shiraz University of Medical Sciences, Shiraz, Iran 2. Ionizing and nonionizing Radiation protection Research center, Shiraz University of Medical Sciences, Shiraz, Iran1. Radiology Department, Paramedical School, Shiraz University of Medical Sciences, Shiraz, Iran 2. Ionizing and nonionizing Radiation protection Research center, Shiraz University of Medical Sciences, Shiraz, Iran3. Radiology Department, Paramedical School, Hormozgan University of Medical Science, Bandare-Abbas, Iran. 4. Medical Physics Department, School of Medicine, Iran University of Medical Science, Tehran, Iran.Radiology Department, Paramedical School, Hormozgan University of Medical Science, Bandare-Abbas, Iran.Introduction: Measurement of indoor radon concentration and its determining factors is crucial for improving public health and developing proper methods that can reduce indoor radon concentrations. This study aimed to measure the indoor radon concentration and to examine its variations in relation to variables, such as the construction materials, ventilation, and age of buildings. Material and Methods: Indoor radon concentrations were measured using solid-state nuclear track detectors (SSNTDs) during winter. Each detector was mounted 50-90 cm above the surface flooring of bedrooms and living rooms. After three months of exposure, the detectors were collected and transferred to a laboratory. They were then etched in 6.25 N NaOH solution in a bath at a constant temperature of 90°C for 240 minutes. Next, the detectors were washed with distilled water and dried. The alpha particle tracks were counted using an automatic alpha track counting system. Results: The mean radon concentration was 53.20 Bq/m3,and 94% of the samples had a radon concentration 3, which is the action level proposed by the World Health Organization (WHO). The annual effective dose varied from 0.25 mSvy-1 to 3.05 mSvy-1, with a mean dose of 0.91 mSvy-1. The results showed that the type of constructed materials and ventilation influence the indoor radon concentration in winter. Conclusion: The annual effective dose in the study area was below the global average of 1.15 mSvy-1. Therefore, local residents must be informed about the health risks of high radon concentrations and understand the role of improved ventilation in reducing the indoor radon levels.https://ijmp.mums.ac.ir/article_16101_64e1d17e81431a88223815f01ef78a76.pdfconstruction materialsdosimetryventilationradongachin |
| spellingShingle | ali jamjour Gholamhassan Haddadi Masoud Haghani mohammaad haghparast Mahdieh Afkhami A Quantitative Assessment of Indoor Radon Level and Its Annual Effective Dose in Buildings of Gachin Rural District in Hormozgan Province, Iran Iranian Journal of Medical Physics construction materials dosimetry ventilation radon gachin |
| title | A Quantitative Assessment of Indoor Radon Level and Its Annual Effective Dose in Buildings of Gachin Rural District in Hormozgan Province, Iran |
| title_full | A Quantitative Assessment of Indoor Radon Level and Its Annual Effective Dose in Buildings of Gachin Rural District in Hormozgan Province, Iran |
| title_fullStr | A Quantitative Assessment of Indoor Radon Level and Its Annual Effective Dose in Buildings of Gachin Rural District in Hormozgan Province, Iran |
| title_full_unstemmed | A Quantitative Assessment of Indoor Radon Level and Its Annual Effective Dose in Buildings of Gachin Rural District in Hormozgan Province, Iran |
| title_short | A Quantitative Assessment of Indoor Radon Level and Its Annual Effective Dose in Buildings of Gachin Rural District in Hormozgan Province, Iran |
| title_sort | quantitative assessment of indoor radon level and its annual effective dose in buildings of gachin rural district in hormozgan province iran |
| topic | construction materials dosimetry ventilation radon gachin |
| url | https://ijmp.mums.ac.ir/article_16101_64e1d17e81431a88223815f01ef78a76.pdf |
| work_keys_str_mv | AT alijamjour aquantitativeassessmentofindoorradonlevelanditsannualeffectivedoseinbuildingsofgachinruraldistrictinhormozganprovinceiran AT gholamhassanhaddadi aquantitativeassessmentofindoorradonlevelanditsannualeffectivedoseinbuildingsofgachinruraldistrictinhormozganprovinceiran AT masoudhaghani aquantitativeassessmentofindoorradonlevelanditsannualeffectivedoseinbuildingsofgachinruraldistrictinhormozganprovinceiran AT mohammaadhaghparast aquantitativeassessmentofindoorradonlevelanditsannualeffectivedoseinbuildingsofgachinruraldistrictinhormozganprovinceiran AT mahdiehafkhami aquantitativeassessmentofindoorradonlevelanditsannualeffectivedoseinbuildingsofgachinruraldistrictinhormozganprovinceiran AT alijamjour quantitativeassessmentofindoorradonlevelanditsannualeffectivedoseinbuildingsofgachinruraldistrictinhormozganprovinceiran AT gholamhassanhaddadi quantitativeassessmentofindoorradonlevelanditsannualeffectivedoseinbuildingsofgachinruraldistrictinhormozganprovinceiran AT masoudhaghani quantitativeassessmentofindoorradonlevelanditsannualeffectivedoseinbuildingsofgachinruraldistrictinhormozganprovinceiran AT mohammaadhaghparast quantitativeassessmentofindoorradonlevelanditsannualeffectivedoseinbuildingsofgachinruraldistrictinhormozganprovinceiran AT mahdiehafkhami quantitativeassessmentofindoorradonlevelanditsannualeffectivedoseinbuildingsofgachinruraldistrictinhormozganprovinceiran |