Current studies on radon gas in Thailand

Indoor radon is a major hazard to human health; it is one of the leading causes of lung cancer. Therefore, radon research in Asia has intensified recently due to the growing awareness of the harm that radon poses. An analysis of the collected literature data showed that in Asia–Oceania, some regions have—or are believed to have—little indoor radon problems due to climate and low Rn ground. It can be concluded that countries have their own approaches, techniques, and protocols. Data were not harmonized within each region; however, measurement techniques were compared by regional intercomparison exercises. The situation differs regarding studies on the usability of radon as a tracer or potential predictor of tectonic phenomena, as some countries are in seismically active zones, such as India, Taiwan, China, Japan, etc. India and Taiwan are global leaders in this research, as well as Italy, which is another seismically affected country. We provide an overview of radon-related surveying and research activities conducted in the western, southern, and eastern Asian regions over the past few years. Additionally, we observed that the number of indoor radon measurements per million inhabitants increases as the human development index (HDI) increases.

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“…Several indoor radon studies were conducted in Thailand, with arithmetic mean values between 16 and 109 Bq m −3 [141,142].…”

Section: Thailand (Iii)mentioning

confidence: 99%

Indoor Radon Research in the Asia-Pacific Region

Janik¹,

Bossew

Hasan

et al. 2023

Atmosphere

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“…As a comparison, this is 2 to 10x lower than tap water in the UK and all measurements are well below US (148 Bq/l) or EU (100 Bq/l) limits. Some hot springs in Thailand however, can have very high level up to 7220 Bq/l (Wanabongse et al, 2005) but these are not used for consumption for various reasons. This paper is a non-peer reviewed draft -currently not submitted to any journal During the burning season, indoor radon increases to 63±33 Bq/m 3 compared to 46±19 Bq/ m 3 outside the haze episode with maximum levels around twice higher (Autsavapromporn et al, 2022).…”

Section: Radioactive Componentsmentioning

confidence: 99%

Comprehensive review of the annual haze episode in Northern Thailand

Pirard,

Charoenpanwutikul

2023

Preprint

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The mountainous part of northern Thailand is subject to an intense haze episode occurring almost every year between January and May. In the last couple of decades, this atmospheric phenomenon has been extensively covered in the media and is now a main concern for the population living in this area. In this review, we synthesized the information available from hundreds of publications on air pollution in Northern Thailand and surrounding regions. The review is tentatively comprehensive, including physical and chemical characteristics of air pollution, their emission sources and meteorological and climatological factors playing in the onset of haze. The effect on human health, the environment and development of agricultural, conservationist and technological practices is also covered. A significant part also focus on the socio-economical causes and solutions that have been brought by successive governments and organizations to solve this issue.

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“…Thailand has been a subject of study on radon and the risk of radon exposure. In Phu Wiang District, Khon Kaen Province; Saraphi District, Chiang Mai Province; and Na Mhom District, Songkhla Province, the indoor radon levels were at 21±70, 21±6 and 52±17 Bq m -3 , respectively; measurements on dissolved radon in 75 natural hot spring samples collected from 22 provinces yielded radon levels of 0.80 to 7,219.70 Bq L -1 (Wanabongse et al, 2005). Thumvijit et al (2020) quantified the indoor radon concentrations and their associated risk in Chiang Mai Province, Thailand.…”

Section: Introductionmentioning

confidence: 97%

Radon Exhalation Rates of Soil Samples from Khon Kaen Province, Thailand

Atyotha,

Thopan,

Fungdet

et al. 2022

MJST

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Radon, which can be also detected in water, forms naturally from the decay of uranium and radium found in different amounts in soil and rock. Radon from soil gases is the main cause of health hazards. Radon exhalation escapes from the ground into the air, where radon and radon progeny decays and produces radioactive particles. When inhaled, they can damage the deoxyribonucleic acid and potentially cause lung cancer. Hence, this study measured the radon exhalation rates in soil samples from 26 districts of Khon Kaen Province, Thailand by the active detector method. The closed-loop measurement system in the active detector was made up of the electronic radon detector and a bulk chamber in a 2.8-L volume. The measurement time for each sample was 24 h. Results showed that the radon concentration in soil samples varied from 5.60 to 67.10 Bq m-3 (average: 21.94±4.55 Bq m-3). The radon mass exhalation rates ranged from 7.34 to 17.51 mBq kg-1 h-1 (average: 11.39±3.38 mBq kg-1 h-1) while the radon surface exhalation rates were in the range of 0.29 to 1.31 mBq m-2 h-1 (average: 0.81±0.90 mBq m-2 h-1). The radon surface exhalation rate of the soil samples was below the average worldwide value of 57,600 mBq m-2 h-1 as set by the United Nations Scientific Committee on the Effects of Atomic Radiation. It was concluded that the soil from the province does not pose any radiological health hazard to the general public.

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Current studies on radon gas in Thailand

Cited by 10 publications

References 0 publications

Indoor Radon Research in the Asia-Pacific Region

Indoor Radon Research in the Asia-Pacific Region

Comprehensive review of the annual haze episode in Northern Thailand

Radon Exhalation Rates of Soil Samples from Khon Kaen Province, Thailand

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