Vitsanusat Atyotha

@rmuti.ac.th

Department of Applied Physics, Faculty of Engineering
Rajamangala University of Technology Isan, Khon Kaen Campus

Vitsanusat Atyotha


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https://researchid.co/vitsanusat.at

RESEARCH, TEACHING, or OTHER INTERESTS

Radiation, Geophysics, Public Health, Environmental and Occupational Health, Health, Toxicology and Mutagenesis
12

Scopus Publications

41

Scholar Citations

3

Scholar h-index

1

Scholar i10-index

Scopus Publications

  • Low-Cost Activated Carbon from Cassava Rhizome Waste via Hydrothermal Method for Methylene Blue and Community Wastewater Treatment: Isotherm and Kinetic Studies
    Natkrita Prasoetsopha, Witawat Singsang, Prasit Thongbai, Atiwat Wiriya-Amornchai, Vitsanusat Atyotha, et al.
    Trends in Sciences, 2026
    Current pollution of natural water sources led to the utilization of agricultural waste, such as cassava rhizome, for conversion into activated carbon in order to reduce waste, promote a circular economy, and enhance the absorption of pollutants, particularly dyes, in wastewater treatment. In this study, the activated carbon was prepared through a hydrothermal process and potassium hydroxide (KOH) activation at 1:1, 1:2, and 1:3 ratios. The resulting activated carbon exhibited increased porosity, smaller pore sizes, and a higher surface area compared to cassava rhizome biochar, especially at a KOH 1:2 ratio. The surface area reached 42.68 m²/g. In the methylene blue adsorption test, the activated carbon showed better adsorption efficiency than cassava rhizome biochar, achieving a maximum removal percentage of 98.35%. Moreover, the results were consistent with the Langmuir adsorption model, with maximum adsorption capacities of 16.08, 81.97, 100, and 96.15 mg/g for biochar and activated carbon prepared with KOH at the respective ratios of 1:1, 1:2, and 1:3, respectively. The kinetic adsorption study aligned with pseudo-second-order kinetic modeling, suggesting that chemisorption may contribute to the adsorption process. In addition, when activated carbon and cassava rhizome biochar are used for natural wastewater treatment, the oxidation-reduction potential (ORP) and dissolved oxygen (DO) are enhanced, which suggests activated carbon and cassava rhizome biochar could effectively be used in real-world applications. HIGHLIGHTS Preparation of Activated Carbon from cassava rhizome, an agricultural waste for minimization of waste and effective treatment of wastewater. The hydrothermal activation method with a KOH ratio of 1:2 is most effective; the surface area of 68 m²/g was 8.82 times higher than that of cassava rhizome biochar. The activated carbon with a KOH ratio of 1:2 is capable of adsorbing 35% of methylene blue at initial concentration is 30 mg/L. Adsorption followed the Langmuir adsorption model with Qmax = 100 mg/g and KL= 33 L/mg and pseudo-second-order kinetic model with k2 = 0.0006 g/mg·min, R² = 0.9961, and h = 2.7 mg/g·min. Both cassava rhizome biochar and activated carbon show potential for natural wastewater treatment. GRAPHICAL ABSTRACT
  • Development of a Low-Cost Real-Time Monitoring System for CO2 and CH4 Emissions from Agricultural Soil
    Kittikun Pituprompan, Teerasak Malasri, Nattapong Miyapan, Onnicha Khainunlai, Vitsanusat Atyotha
    Agriengineering, 2026
    Agricultural soils are a major source of greenhouse gas (GHG) emissions, particularly carbon dioxide (CO2) and methane (CH4), highlighting the need for cost-effective and field-applicable monitoring solutions. This study developed and evaluated a low-cost real-time monitoring system for soil CO2 and CH4 emissions by integrating surface emission chambers, low-cost gas sensors, a solar-powered energy supply, and IoT-based wireless communication. Three acrylic chambers with different heights (40, 60, and 80 cm) were fabricated to investigate the influence of chamber geometry on measurement performance. System performance was assessed through simultaneous measurements against a Biogas 5000 analyzer under simulated conditions and during field deployment in a sugarcane cultivation area in Khon Kaen Province, Thailand. Relative agreement was used to compare the developed system with the reference instrument. The results showed that relative agreement varied with chamber height for both gases. Under simulated conditions, the 80 cm chamber achieved the highest overall relative agreement for CO2 and CH4, underscoring the importance of sufficient headspace volume in chamber-based measurements. Field experiments confirmed the system’s capability for continuous CO2 monitoring in an agricultural environment. However, CH4 emissions were not detected during the study period, likely due to drought-induced, well-aerated soil conditions. The developed system demonstrated stable autonomous operation, low energy consumption, and ease of installation, making it suitable for long-term field applications. Overall, the proposed platform provides a practical and scalable approach for real-time soil GHG monitoring and offers strong potential for integration into precision agriculture and climate-smart farming systems to support GHG mitigation strategies.
  • Age-specific assessment of annual effective dose and excess lifetime cancer risk from radon in tap water of Mueang Ubon Ratchathani, Thailand
    Ing-orn Sittitanadol, Khanuengnij Prakhammin, Junthara Somtua, Vitsanusat Atyotha
    Applied Radiation and Isotopes, 2026
  • RADON CONCENTRATION MEASUREMENT AND EFFECTIVE DOSE ASSESSMENT IN TAP WATER OF TOURIST LOCATIONS FROM KHAO KHO, PHETCHABUN PROVINCE, THAILAND
    Vitsanusat ATYOTHA, Phachirarat SOLA, Atirarj SUKSAWAD, Ing-orn SITTITANADOL, and
    Carpathian Journal of Earth and Environmental Sciences, 2026
    Radon content in tap water at well-known tourist destinations in Khao Kho, Phetchabun Province, Thailand, was measured using a RAD7 radon gas detector. The average radon content in tap water from 19 samples in the Khao Kho Sub-district was 0.30 ± 0.27 Bq/L, with values ranging from 0.04 to 1.01 Bq/L. For the 20 samples collected from the Campson Sub-district, radon content ranged from 0.04 to 2.22 Bq/L, with an average of 0.56 ± 0.60 Bq/L. The health risks evaluated included the total annual effective dose (Dtotal), the annual effective dose from inhalation (Dinh) and ingestion (Ding), and the annual effective dose to specific organs, such as the lungs (Dlung) and stomach (Dstomach). The radon content in all tap water samples was below the United States Environmental Protection Agency's permissible standard of 11.1 Bq/L, and the total average annual effective dose (D), calculated from the radon content in tap water, was below the 100 µSv/y recommended by the World Health Organization’s regulatory level. Therefore, the tap water in these study areas does not pose a significant health risk based on current international guidelines.
  • Urine Radon Levels among Various Cancers Other than Lung Cancer: A Cross-sectional Study
    Vitsanusat Atyotha
    Journal of the Medical Association of Thailand, 2025
  • Continuous Monitoring of Radon Contamination Levels in Lower Nam Phong River, Khon Kaen Province, Thailand
    Vitsanusat Atyotha, Khanuengnij Prakhammin, Benjawan Rattanawong, Rachan Udomkham, Junthara Somtua
    Asean Journal of Scientific and Technological Reports, 2024
    In this research, radon concentrations in surface water samples were measured at 8 stations and along 8 boat survey routes in the lower Nam Phong River, Khon Kaen Province, Thailand, using the RAD 7 Radon Detector and RAD AQUA accessories. The results of radon concentration at the 8 stations along the Nam Phong River ranged from 0.16 to 4.87 Bq/L, with an average of 1.17 Bq/L. For the boat survey routes along the Nam Phong River, radon concentrations ranged from 0.04247 to 0.12342 Bq/L, with an average of 0.07422 Bq/L. These results were lower than the maximum contaminant level of radon in water (MCL), 11.1 Bq/L, as the United States Environmental Protection Agency recommended. Finally, the results were used to assess various health risks to people in this research area, contributing to determining the public safety of radon exposure in the lower Nam Phong River.
  • Effects of Micro/Nano Bubble-Aeration Time on Removal of Rn-222 Contamination in Tap Water
    Science and Technology Asia, 2023
  • Assessment of radon concentration of vegetables and fruits in local markets in Muang Nakhon Phanom Municipality, Thailand
    Y Pookamnerd, V Atyotha, P Thopan, W Poochada
    Journal of Physics Conference Series, 2023
    Aim of this research is a hazards assessment of radon concentration and effective radium content were estimated in 24 vegetables and 9 fruits samples that were collected randomly from local markets in Muang Nakhon Phanom Municipality, Thailand by active detecting method (RAD 7). The results showed that radon concentrations in vegetables were in the range of 6.27 – 45.11 Bq/m3, the mean was 21.32±2.36 Bq/m3and radon concentrations in fruits were in the range of 12.11 – 53.19 Bq/m3, the mean was 27.47±2.81 Bq/m3, respectively. All values of radon concentrations for vegetable and fruits in these study were found to be well below than the international standard level of radon concentration 190 Bq/m3recommended by the EPA. These results were also used to calculate the average effective dose equivalent (EDE) of radium from vegetables and fruits, calculation was 0.034 µSv/y, this is lower than the effective dose equivalent for the standard value of 1.3 mSv/y recommended by the EPA. This study show that vegetables and fruits were found to be safe from radon contamination.
  • Assessment of annual effective dose due to inhalation and ingestion of radon from groundwater at Kantharawichai District, Maha Sarakham Province
    V Atyotha, A Boonkhuang, P Sola, J Somtua
    Journal of Physics Conference Series, 2023
    Assessment of annual effective dose due to inhalation (Dinh) and ingestion (Ding) of radon from 43 groundwater samples at Kantharawichai District, Maha Sarakham Province using Radon Gas Monitor ATMOS 12 DPX. The results were as follows: 1. radon concentrations ranged from 1.04 – 21.87 Bq/L with a mean of 8.26±3.77 Bq/L, 2. The Dinh ranged from 2.60 – 54.69 μSv/y with a mean of 20.70±9.40 μSv/y. The Ding ranged from 0.19 – 3.94 μSv/y with a mean of 1.50±0.70 μSv/y, 3. The annual effective dose on organs, namely the dose on lungs (Dlung) ranged from 6.26 – 131.24 μSv/y with a mean of 49.60±22.70 μSv/y, and the dose for stomach (Dstomach) is 0.45 – 9.45 μSv/y with a mean of 3.60±1.60 μSv/y, and 4. The mean of excess lifetime cancer risk (ELCR×10-4) in males was 0.90±0.40 and in females, it was 0.96±0.44. The results will be compared with the action levels of various organizations, including. The maximum allowable radon concentration in water is 11.1 Bq/L, according to US EPA, and the allowable annual effective dose is 100 μSv/y, in accordance with WHO. Analysis of results can signify the health safety of radon inhalation and ingestion of groundwater from the study area.
  • Design and simulation of a low-energy single ion irradiation system for micro/nano-biosample investigation
    P Thopan, V Atyotha, K Prakrajang, U Tippawan, L D Yu
    Journal of Physics Conference Series, 2023
    A low-energy single ion irradiation system is developed in its initiation in Thailand to follow one of the trends in novel ion beam technology exploitation. Single ion irradiation of materials is a highly technological development of ion beam technology. The developed single ion irradiation systems worldwide are primarily in the MeV-energy range and for single cell studies, and recently the trend has been extended to the low-energy range (< 100 keV) but focused on microelectronic applications. Based on our previous research on low-energy ion beam irradiation of biological cells and DNA, we design and simulate a low-energy single ion implantation system, aiming at eventual construction of such a novel ion beam apparatus for applications to the biological studies. In the system, the ion energy is decreased to orders < 1 keV by the existing deceleration lens, then the low-energy ion beam passes through µm slits, and finally, low-energy single ions are obtained by beam scanning with appropriate frequencies from scanner plates and detected by a single ion detection device. Conceptual design, calculation and simulation of this single ion system are presented.
  • Radon Exhalation Rates of Soil Samples from Khon Kaen Province, Thailand
    Mindanao Journal of Science and Technology, 2022
  • Removal of rn-222 from contaminated tap water by micro/nano bubble aeration
    International Journal of Plasma Environmental Science and Technology, 2019

RECENT SCHOLAR PUBLICATIONS

  • Development of a Low-Cost Real-Time Monitoring System for CO 2 and CH 4 Emissions from Agricultural Soil
    K Pituprompan, T Malasri, N Miyapan, O Khainunlai, V Atyotha
    AgriEngineering 8 (5), 191 , 2026
    2026
  • Age-Specific Assessment of Annual Effective Dose and Excess Lifetime Cancer Risk from Radon in Tap Water of Mueang Ubon Ratchathani, Thailand
    K Prakhammin, J Somtua, V Atyotha
    Applied Radiation and Isotopes, 112455 , 2026
    2026
  • Health Literacy Assessment on Medical Equipment Management in Sub-district Health Promoting Hospitals
    J Somtua, P Namwaing, S Jumpanui, K Prakhammin, V Atyotha
    The 11th AHLA International Health Literacy Conference: Health Literacy and … , 2025
    2025
  • Urine Radon Levels among Various Cancers Other than Lung Cancer: A Cross-sectional Study
    PD Vitsanusat Atyotha, MS1, Khanuengnij Prakhammin, PhD1, Rachan Udomkham ...
    J Med Assoc Thai 108 (Suppl), 120-123 , 2025
    2025
  • RADON CONCENTRATION MEASUREMENT AND EFFECTIVE DOSE ASSESSMENT IN TAP WATER OF TOURIST LOCATIONS FROM KHAO KHO, PHETCHABUN PROVINCE, THAILAND
    IS Vitsanusat ATYOTHA1*, Phachirarat SOLA2, Atirarj SUKSAWAD3
    Carpathian Journal of Earth and Environmental Sciences 21 (1), 3-11 , 2025
    2025
    Citations: 1
  • Continuous Monitoring of Radon Contamination Levels in Lower Nam Phong River, Khon Kaen Province, Thailand:-
    V Atyotha, K Prakhammin, B Rattanawong, R Udomkham, J Somtua
    ASEAN Journal of Scientific and Technological Reports 27 (3), e252757-e252757 , 2024
    2024
    Citations: 2
  • อัตรา การ ปล่อย ที่ พื้น ผิว ของ เรดอน ใน ตัวอย่าง ตะกอน แม่น้ำ โขง และ ความ เสี่ยง มะเร็ง ปอด จังหวัด นครพนม ประเทศไทย
    ยอด เปรม ภู กำเนิด, ปรัชญา วุฒิ โถ ปั้น, ลิขิต เต็ม พร้อม, วร วรรณ ภู ชา ดา, ...
    วารสาร วิทยาศาสตร์ และ เทคโนโลยี มร ย. 8 (2), 1-8 , 2023
    2023
  • Effects of Micro/Nano Bubble-Aeration Time on Removal of Rn-222 Contamination in Tap Water
    P Thopan, K Pituprompun, V Thonglek, V Atyotha
    Science & Technology Asia, 43-52 , 2023
    2023
    Citations: 1
  • Design and simulation of a low-energy single ion irradiation system for micro/nano-biosample investigation
    P Thopan, V Atyotha, K Prakrajang, U Tippawan, LD Yu
    Journal of Physics: Conference Series 2431 (1), 012068 , 2023
    2023
  • Assessment of annual effective dose due to inhalation and ingestion of radon from groundwater at Kantharawichai District, Maha Sarakham Province
    V Atyotha, A Boonkhuang, P Sola, J Somtua
    Journal of Physics: Conference Series 2431 (1), 012005 , 2023
    2023
    Citations: 2
  • Assessment of radon concentration of vegetables and fruits in local markets in Muang Nakhon Phanom Municipality, Thailand
    Y Pookamnerd, V Atyotha, P Thopan, W Poochada
    Journal of Physics: Conference Series 2431 (1), 012006 , 2023
    2023
    Citations: 7
  • Assessment of 226Ra levels and the lifetime cancer fatality risk from drinking water in Muang District, Maha Sarakham province
    V Atyotha, P Thopan, A Boonkhuang, I Kotutha, J Somtua
    Food Agricultural Sciences and Technology 8 (2), 50-57 , 2022
    2022
  • Radon exhalation rates of soil samples from Khon Kaen Province, Thailand
    V Atyotha, P Thopan, S Fungdet, J Somtua
    Mindanao Journal of Science and Technology 20 (S1) , 2022
    2022
    Citations: 12
  • Studies on Radon Exhalation Rate from Soil sample of Khon Kaen Province, Thailand
    V Atyotha, P Thopan, S Fungdet, J Somtua
    2020
  • Removal of Rn-222 from Contaminated Tap Water by Micro/Nano Bubble Aeration
    Vitsanusat
    International Journal of Plasma Environmental Science and Technology 13 (2 … , 2019
    2019
    Citations: 5
  • Determination of the amount of water vapor in the troposphere over Thailand using surface data
    S Phokate, V Atyotha
    Kasem Bundit Engineering Journal 8, 364-372 , 2018
    2018
    Citations: 3
  • A Survey of Radon level in Surface Water at Amphoe Muang Maha Sarakham with Ionization Chamber
    Vitsanusat
    Modern Environmental Science and Engineering (ISSN 2333-2581) 2 (11), 737-739 , 2016
    2016
    Citations: 1
  • Measurement and analysis of radium 226 in drinking water at Amphoe Muang Khon Kaen via manganese fibers using gamma-spectrometry
    V Atyotha
    Engineering and Applied Science Research 43, 210-212 , 2016
    2016
    Citations: 1
  • Filtration of contaminated benzene in air using agricultural waste.
    P Panpiboon, V Atyotha
    2016
  • การ ตรวจ วัด เรดอน ใน นํ้า ดื่ม เขต อำเภอ เมือง จังหวัด ขอนแก่น ด้วย เทคนิค Ionization chamber Measurement of Radon in Drinking Water at Amphur Meaung, Khonkhaen Province with Ionization …
    วิษณุ ศาสตร์ อาจ โยธา, พ ชิ รา โส ลา
    Research on Modern science and Utilizing Technological Innovation Journal … , 2015
    2015

MOST CITED SCHOLAR PUBLICATIONS

  • Radon exhalation rates of soil samples from Khon Kaen Province, Thailand
    V Atyotha, P Thopan, S Fungdet, J Somtua
    Mindanao Journal of Science and Technology 20 (S1) , 2022
    2022
    Citations: 12
  • Assessment of radon concentration of vegetables and fruits in local markets in Muang Nakhon Phanom Municipality, Thailand
    Y Pookamnerd, V Atyotha, P Thopan, W Poochada
    Journal of Physics: Conference Series 2431 (1), 012006 , 2023
    2023
    Citations: 7
  • Removal of Rn-222 from Contaminated Tap Water by Micro/Nano Bubble Aeration
    Vitsanusat
    International Journal of Plasma Environmental Science and Technology 13 (2 … , 2019
    2019
    Citations: 5
  • Determination of the amount of water vapor in the troposphere over Thailand using surface data
    S Phokate, V Atyotha
    Kasem Bundit Engineering Journal 8, 364-372 , 2018
    2018
    Citations: 3
  • The Study of Factors that Cause Cancer of the Concentration of Radium 226 in Nam Pong River at Khon Kaen Province
    V Atyotha
    Journal of Nurses’ association of thailand, north-eastern division 31 (4 … , 2013
    2013
    Citations: 3
  • Continuous Monitoring of Radon Contamination Levels in Lower Nam Phong River, Khon Kaen Province, Thailand:-
    V Atyotha, K Prakhammin, B Rattanawong, R Udomkham, J Somtua
    ASEAN Journal of Scientific and Technological Reports 27 (3), e252757-e252757 , 2024
    2024
    Citations: 2
  • Assessment of annual effective dose due to inhalation and ingestion of radon from groundwater at Kantharawichai District, Maha Sarakham Province
    V Atyotha, A Boonkhuang, P Sola, J Somtua
    Journal of Physics: Conference Series 2431 (1), 012005 , 2023
    2023
    Citations: 2
  • Determination of Radium-226 in Nam Pong river at Khonkaen province via manganese fibers using Gamma-spectrometry
    V Atyotha
    Thaksin University Journal 16 (3), 83-91 , 2013
    2013
    Citations: 2
  • RADON CONCENTRATION MEASUREMENT AND EFFECTIVE DOSE ASSESSMENT IN TAP WATER OF TOURIST LOCATIONS FROM KHAO KHO, PHETCHABUN PROVINCE, THAILAND
    IS Vitsanusat ATYOTHA1*, Phachirarat SOLA2, Atirarj SUKSAWAD3
    Carpathian Journal of Earth and Environmental Sciences 21 (1), 3-11 , 2025
    2025
    Citations: 1
  • Effects of Micro/Nano Bubble-Aeration Time on Removal of Rn-222 Contamination in Tap Water
    P Thopan, K Pituprompun, V Thonglek, V Atyotha
    Science & Technology Asia, 43-52 , 2023
    2023
    Citations: 1
  • A Survey of Radon level in Surface Water at Amphoe Muang Maha Sarakham with Ionization Chamber
    Vitsanusat
    Modern Environmental Science and Engineering (ISSN 2333-2581) 2 (11), 737-739 , 2016
    2016
    Citations: 1
  • Measurement and analysis of radium 226 in drinking water at Amphoe Muang Khon Kaen via manganese fibers using gamma-spectrometry
    V Atyotha
    Engineering and Applied Science Research 43, 210-212 , 2016
    2016
    Citations: 1
  • Monitoring of radon concentration along active fault: A case study of Klong Marui Fault
    V Atyotha
    M. Sc. thesis, Department of Nuclear Technology, Chulalongkorn University … , 2007
    2007
    Citations: 1
  • Development of a Low-Cost Real-Time Monitoring System for CO 2 and CH 4 Emissions from Agricultural Soil
    K Pituprompan, T Malasri, N Miyapan, O Khainunlai, V Atyotha
    AgriEngineering 8 (5), 191 , 2026
    2026
  • Age-Specific Assessment of Annual Effective Dose and Excess Lifetime Cancer Risk from Radon in Tap Water of Mueang Ubon Ratchathani, Thailand
    K Prakhammin, J Somtua, V Atyotha
    Applied Radiation and Isotopes, 112455 , 2026
    2026
  • Health Literacy Assessment on Medical Equipment Management in Sub-district Health Promoting Hospitals
    J Somtua, P Namwaing, S Jumpanui, K Prakhammin, V Atyotha
    The 11th AHLA International Health Literacy Conference: Health Literacy and … , 2025
    2025
  • Urine Radon Levels among Various Cancers Other than Lung Cancer: A Cross-sectional Study
    PD Vitsanusat Atyotha, MS1, Khanuengnij Prakhammin, PhD1, Rachan Udomkham ...
    J Med Assoc Thai 108 (Suppl), 120-123 , 2025
    2025
  • อัตรา การ ปล่อย ที่ พื้น ผิว ของ เรดอน ใน ตัวอย่าง ตะกอน แม่น้ำ โขง และ ความ เสี่ยง มะเร็ง ปอด จังหวัด นครพนม ประเทศไทย
    ยอด เปรม ภู กำเนิด, ปรัชญา วุฒิ โถ ปั้น, ลิขิต เต็ม พร้อม, วร วรรณ ภู ชา ดา, ...
    วารสาร วิทยาศาสตร์ และ เทคโนโลยี มร ย. 8 (2), 1-8 , 2023
    2023
  • Design and simulation of a low-energy single ion irradiation system for micro/nano-biosample investigation
    P Thopan, V Atyotha, K Prakrajang, U Tippawan, LD Yu
    Journal of Physics: Conference Series 2431 (1), 012068 , 2023
    2023
  • Assessment of 226Ra levels and the lifetime cancer fatality risk from drinking water in Muang District, Maha Sarakham province
    V Atyotha, P Thopan, A Boonkhuang, I Kotutha, J Somtua
    Food Agricultural Sciences and Technology 8 (2), 50-57 , 2022
    2022