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

Author

Listed:
  • 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)

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

Suggested Citation

  • Ahmad Termizi Ramli & Mohammad Syazwan Mohd Sanusi & Muhammad Hisyam Lee & Sallehuddin Sahrone & Nor Zati Hani Abu Hanifah, 2016. "Spatial distribution of natural γ radiation exposure and its relationship to soil types," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 84(3), pages 1859-1872, December.
    • Handle: RePEc:spr:nathaz:v:84:y:2016:i:3:d:10.1007_s11069-016-2524-5
    DOI: 10.1007/s11069-016-2524-5
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