Correlation between gross alpha and beta activity concentration in soil samples with dose rates in Iskandar Malaysia, Johor, Malaysia

The objective of this study was to determine the gross alpha and gross beta activity concentrations in soil samples collected in Iskandar Malaysia, Johor, Malaysia. A total of 32 soil samples were collected and the dose rates at the location were measured 1 m above the ground. The gross alpha activity concentration ranged from 140 to 2,010 Bq kg-1 with the mean value of 796 ± 70 Bq kg-1. The gross beta activity ranged from 40 to 2,300 Bq kg-1 with the mean value of 837 ± 30 Bq kg-1. The results of analysis show strong correlation between gross alpha activity concentration and dose rate (R = 0.90) and gross beta activity concentration and dose rate (R = 0.84)

Site selection for nuclear power plant in Mersing Johor

Nuclear power is considered as energy source option for future power generation in the National New Energy Policy 2010. The first nuclear power plant (NPP) construction is expected to start at 2017, and officially operated in 2025. This paper aims to propose possible candidate site areas for NPP in Mersing District, Johor. The evaluation uses the Atomic Energy Licensing Board (AELB) guideline documents as main reference, supported by regulation documents from International Atomic Energy Agency (IAEA). 4 safety parameters are used in the assessment – geological characteristic, air dispersion (meteorological) analysis, population data and safety characteristics. This study ranked 4 proposed areas possible candidate site area for NPP in Mersing district

Environmental radiology assessment in Lahad Datu, Sabah

Monitoring terrestial gamma radiation is crucial to prepare a baseline data for environmental radiological protection. Radiological research was carried out in Lahad Datu, Sabah to obtain the radioactivity status and terrestrial gamma radiation level in the area. We measure the terrestrial gamma radiation dose rates and analyse the radioactivity concentration of primordial radionuclides for radiological risk assessment. We identified that the annual estimation of dose effective for public is below the public dose limit, 1 mSv per year. Public and environment safety and health are remain secure. The obtained data and results can be used as reference for environmental radiology protection

Environmental radiology assessment in Lahad Datu, Sabah

Monitoring terrestial gamma radiation is crucial to prepare a baseline data for environmental radiological protection. Radiological research was carried out in Lahad Datu, Sabah to obtain the radioactivity status and terrestrial gamma radiation level in the area. We measure the terrestrial gamma radiation dose rates and analyse the radioactivity concentration of primordial radionuclides for radiological risk assessment. We identified that the annual estimation of dose effective for public is below the public dose limit, 1 mSv per year. Public and environment safety and health are remain secure. The obtained data and results can be used as reference for environmental radiology protection