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Modeling Effects of Regional Windblown Dust on Particulate Matter Concentration of Tehran using CMAQ

Jalali Farahani, Vahid | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 48342 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Arhami, Mohammad
  7. Abstract:
  8. In recent years, dust storms have turned into one of the most prominence environmental issues, existing in Tehran. The infiltration of dust through west borders has led to significant increase in the concentration of Tehran’s pollutants. The main abroad source of these dusts are deserts located in Middle East. The contribution of Middle East deserts in daily concentration of PM10, without the inclusion of local emission sources, was analyzed in previous studies. In this study, we analyzed the contribution of dust storms, formed in Middle East, in Tehran’s PM10 and PM2.5 concentration, using CMAQ model. Dust periods between 2012 and 2014, was identified using observation data and satellite images. The source of dust during two periods in 2012 was identified and the dust emission from these areas was calculated. A model was developed using the calculated dust and local emission sources. The contribution of dust storms in Tehran’s PM10 and PM2.5 was calculated using the model. The results showed that the source of 61% of PM10 and 68% of PM2.5, during the spring period, is dust storms formed in Iraq and Syria. During the period in summer, the contribution of dust storms in PM10 and PM2.5 concentration was calculated 52% and 48% respectively
  9. Keywords:
  10. Dust ; Air Pollution ; Sparse Matrix Operator Kernel Emissions (SMOKE)Modeling ; Community Multiscale Air Quality Modeling System (CMAQ) ; Air Particulate Matter ; Weather Research and Forecasting (WRF)Modeling System

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