پيشنهاد بازنگري طرح جامع كاهش آلوذگي هواي شهر تهران در خصوص منواكسيد كربن

Tehran air pollution reduction comprehensive plan with an emphasis on CO

In this research, carbon monoxide as one of the pollutants in the city of Tehran was studied during the execution of Comprehensive Plan for the Reduction of Air Pollution (1999-2005) to evaluate the success of the said plan in lowering this pollutant. To this end, statistical data of the Air Pollutants Measurement Stations in Tehran were analyzed using the Excel software in which the daily level of carbon monoxide was measured and then based on the daily rates, the relative monthly and annual rates were calculated. Studying the trend of changes in the cityʹs carbon monoxide level, it can be concluded that the execution of this plan has not been effective in lowering the level of CO pollutant to the expected extent, but due to the increasing trend in the number of motor vehicles, considered to be the main source for producing CO in the city, the plan has been able to prevent the increase of this pollutant. Due to the stable trend of changes in the CO level in Tehran and also to the dissatisfaction with this trend, the researchers tried to review the Comprehensive Plan for the Reduction of Air Pollution which has been executed since 2000 so that the success of the plan in lowering the level of CO pollutant can be witnessed in the remaining years of the Plan (2006-2010). Key words: Air pollution reduction, comprehensive plan, carbon monoxide pollutant, city of Tehran J.Env. Set Tech., Vol 11, No.3, Autumn 2009