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KMID : 1156220190450010082
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Journal of Environmental Health Sciences
2019 Volume.45 No. 1 p.82 ~ p.96
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Study on the Selection and Application of a Spatial Analysis Model Appropriate for Selecting the Radon Priority Management Target Area
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Namgoung Sun-Ju
Choi Kil-Yong
Hong Hyung-Jin
Yoon Dan-Ki
Kim Yoon-Shin
Park Si-Hyun
Kim Yoon-Kwan
Lee Cheol-Min
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Abstract
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Objective: The aims of this study were to provide the basic data for establishing a precautionary management policy and to develop a methodology for selecting a radon management priority target area suitable for the Korean domestic environment.
Methods: A suitable mapping method for the domestic environment was derived by conducting a quantitative comparison of predicted values and measured values that were calculated through implementation of two models such as IDW and RBF methods. And a qualitative comparison including the clarity of information transmission of the written radon map was carried out.
Results: The predicted and measured values were obtained through the implementation of the spatial analysis models. The IDW method showed the lowest in the calculated mean square error and had a higher correlation coefficient than the other methods. As results of comparing the uncertainty using the jackknife concept and the concept of error distance for comparison of the differences according to the model interpolation method, the sum of the error distances showed a modest increase compared with the RBF method. As a result of qualitatively comparing the information transfer clarity between the radon maps prepared with the predicted values through the model implementation, it was found that the maps plotted using the predicted values by the implementation of the IDW method had greater clarity in terms of highness and lowness of radon concentration per area compared with the maps plotted by other methods.
Conclusions: The radon management priority area suggests selecting a metropolitan city including an area with a high radon concentration.
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KEYWORD
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Radon management, radon map, spatial analysis model, IDW method
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