Ozone Concentration and Meteorological Parameters Alternations Investigation in Air Quality Control Company to Aqdasieh Station in 7 Months (from Oct. 2007 to Apr. 2008) in Tehran

In this research measuring ozone concentration in air quality control Company at Aqdasieh station، and meteorological parameters at Resalat station، was compared and investigated. This investigation was performed for 7 months (from Oct. 2007 to Apr. 2008). The average daily Ozone concentration showed the least quantity of Ozone in early morning and late night air. Comparing the sunshine radiation with variation of Ozone concentration indicated that these two items have direct relations. Increasing the sunshine radiation concludes the increasing of photochemical activity and consequently increasing the Ozone concentration. Investigating the monthly average Ozone concentration showed that the least registered amount of Ozone was during these 7 months of measurement in Azar (November) and the most registered amount of Ozone occurred in Farvardin (April). The most important factor of main increasing happened in April and in the solar radiation and photochemical activities.