Spatial distribution of natural γ radiation exposure and its relationship to soil types

Ahmad Termizi Ramli (), Mohammad Syazwan Mohd Sanusi, Muhammad Hisyam Lee, Sallehuddin Sahrone and Nor Zati Hani Abu Hanifah
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Ahmad Termizi Ramli: University Teknologi Malaysia
Mohammad Syazwan Mohd Sanusi: University Teknologi Malaysia
Muhammad Hisyam Lee: University Teknologi Malaysia
Sallehuddin Sahrone: University Teknologi Malaysia
Nor Zati Hani Abu Hanifah: University Teknologi Malaysia

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2016, vol. 84, issue 3, No 18, 1859-1872

Abstract: Abstract An extensive survey of natural γ radiation dose rate levels was measured throughout the Melaka State, Malaysia. The main objective of the present study is to verify the influence of different soil types γ radiation exposures in air using statistical analyses. One-way analysis of variances ANOVA and post hoc test using Fisher’s least significant difference (LSD) were used to test the probability of significance difference between the dose rates and soil types. The survey involved 541 measurement points of terrestrial gamma radiation dose rates in an area of 1650 km2 which covers five major soil groups based on six FAO/UNESCO soil orders. The spatial dose distributions and descriptive statistics of all measured γ radiation dose rates are presented. It has the mean value of 183 nGy h−1. The significance test using ANOVA shows that all dose rates for four soil groups were significantly different from each other with p sig. value

Keywords: Natural γ radiation exposure; Soil influence; Statistical analysis (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1007/s11069-016-2524-5

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