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year 28, Issue 2 (ICOP & ICPET 2022 2022)
ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 50-53 |
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Bayat F, Panahifar H. Ventilation coefficient effect on air pollutant emission of Tehran city. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :50-53
URL: http://opsi.ir/article-1-2531-en.html
URL: http://opsi.ir/article-1-2531-en.html
Abstract: (653 Views)
Natural factors in air pollutions periods and the amount of pollutant emission in Tehran during a specific pollution period have been investigated. Ventilation coefficient as a natural factor affecting the emission of pollutants has reached more than the threshold of air ventilation conditions at the beginning of the pollution period from December 25, 2020, to January 5, 2021, in Tehran city. Therefore, suitable ventilation conditions caused the pollutants in Tehran city have move in the wind direction and have also affected the cities of Qom and Semnan provinces. Referring to the CALIOP space lidar recordings over Tehran province during this period of pollution, it was found that the air pollutants share in some altitudes reaches more than 60% of all aerosols.
Type of Study: Experimental |
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