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1- University of hormozgan , abolhassang@yahoo.com
2- University of hormozgan
Abstract:   (966 Views)
Nitrogen dioxide is one of the factors of reducing air quality in most regions of the world. The purpose of this research is to investigate the concentration and trend of nitrogen dioxide pollutant changes during the years 2005-2018 and also its relationship with the amount of precipitation in the region. The average vertical column concentration of nitrogen dioxide in the period between 2005 and 2018 by the OMI sensor on Iran shows that the highest concentration of nitrogen dioxide on Iran is about 3.07×10+16   molecules per square centimeter of the air column section. Vardespehri, and in megacities, especially Tehran metropolis, which has the highest population density followed by the highest road transportation, by examining the trend of annual changes in the concentration of the vertical column of Vardespehri nitrogen dioxide and the average annual precipitation over Iran, we observe that the concentration of this pollutant with The increase in population and human activities has been increasing from 2005 to 2016 and decreasing from 2016 to 2018 due to population growth, but overall with a slope of 3/53×1013(molecule×cm-2×year-1)There has been an increase, in contrast to the time series of the average annual precipitation over Iran with a slope (-0.159 mm × year-1), there has been a decreasing trend, and from the comparison of the trend of these two parameters, we can see that they have a negative effect on each other.
Type of Study: Research | Subject: climatology
Received: 2022/07/17 | Accepted: 2022/12/21

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