A Comparison on Function of Kriging and Inverse Distance Weighting Models in PM10 Zoning in Urban Area
- سال انتشار: 1396
- محل انتشار: فصلنامه بهداشت محیط و توسعه پایدار، دوره: 2، شماره: 4
- کد COI اختصاصی: JR_JEHSD-2-4_003
- زبان مقاله: انگلیسی
- تعداد مشاهده: 610
نویسندگان
Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Occupational Health Research Center, Department of Occupational Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
چکیده
Introduction: The present study aimed to compare the performance of two widely-used models for spatial assessment of particulate matter less than 10 microns (PM10) in ambient air of Yazd city. Finally, effective factors on concentrations of pollutants and corresponding standards were investigated. Materials and Methods: A number of 13 sampling stations were employed in different areas of Yazd to samp le PM10 within two seasons of winter and spring of 2012 and 2013. PM10 was measured by HAZ-DUST EPAM-5000 particulate air monitor. In order to assess the efficiency of Kriging and Inverse Distance Weighting (IDW) models for PM10 zoning, the statistical Root Mean SquareError (RMSE) and %RMSE methods were used in the Arc GIS software version 10.1. Results: The highest (297 μg/m3) and lowest concentrations (35.8 μg/m3) of PM10 in spring were found in high-traffic historical regions and low-traffic suburban areas, respectively. High-traffic and historical regions had higher levels of PM10 compared to other regions. Given the values of RMSE and %RMSE indicators, Kriging interpolation method was better for zoning of the pollutant PM10 in both winter and spring. Conclusion: According to higher concentration of PM10 compared to WHO standard values particularly in spring, necessary actions and solutions should be taken for the pollution reduction. This study indicated that Kriging model has a better efficiency for spatial analysis of suspended particles, compared to IDW method.کلیدواژه ها
Suspended Particles,Interpolation,Kriging Model,Geographic Information,Yazd Cityمقالات مرتبط جدید
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