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http://dx.doi.org/10.1016/S0198-9715(01)00020-5

has been cited by the following article:

• TITLE: Zoning of CO Emissions in Tehran in the Medium Term by Using Third Quartile as the Exposure Candidate

  AUTHORS: Alireza Gharagozlou, Alireza Tayeba, Maryam Dadashi, Hadi Abdolahi

  KEYWORDS: Carbon Monoxide, Interpolation, GIS, Tehran

  JOURNAL NAME: Journal of Geographic Information System, Vol.6 No.5, October 21, 2014

  ABSTRACT: CO is one of the main air pollutant which leads to many problems for human. Mega cities such as Tehran have critical issues by increasing the vehicles, fuel usage and urban area expansion. Hence, to have a clear view points on the pattern of CO concentration in Tehran, the data of 14 air quality concentration centers in a midterm period (2009 and 2012) are used. The main novelty of this research is using the third quartile (Q3) as the pollution indicator which leads to more accurate results based on the exposure pattern in a day. Additionally, by Spline interpolation model and using ArcGIS software the zoning maps to show the CO concentration in urban area are illustrated and discussed. Using Q3 instead of the mean values showed more accurate results due to the exposure patterns. Due to the results, the CO concentration shows a downward trend and the most changes are in the Western side of the city.