title: Air Quality Analysis by Using Fuzzy Inference System and Fuzzy C-mean Clustering in Tehran, Iran from 2009-2013.
abstract: BACKGROUND
  Since the industrial revolution, the rate of industrialization and urbanization has increased dramatically. Regarding this issue, specific regions mostly located in developing countries have been confronted with serious problems, particularly environmental problems among which air pollution is of high importance.
  
  
  METHODS
  Eleven parameters, including CO, SO2, PM10, PM2.5, O3, NO2, benzene, toluene, ethyl-benzene, xylene, and 1,3-butadiene, have been accounted over a period of two years (2011-2012) from five monitoring stations located at Tehran, Iran, were assessed by using fuzzy inference system and fuzzy c-mean clustering.
  
  
  RESULTS
  These tools showed that the quality of criteria pollutants between the year 2011 and 2012 did not as much effect the public health as the other pollutants did.
  
  
  CONCLUSIONS
  Using the air EPA AQI, the quality of air, and also the managerial plans required to improve the quality can be misled.
authors: Dept. of Environmental Health Engineering, School of Public Health,International Branch Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors: Amir Abbas
authors: AA
authors: Hamedian
authors: School of Public Health, Shahroud University of Medical Sciences, Shahroud, Iran.
authors: Allahbakhsh
authors: A
authors: Javid
authors: Dept. of Environmental Health Engineering, School of Public Health,International Branch Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors: Saeed
authors: S
authors: Motesaddi Zarandi
authors: Environmental Sciences Research Institute, Shahid Beheshti University, Tehran, Iran.
authors: Yousef
authors: Y
authors: Rashidi
authors: Dept. of Environmental Health Engineering, School of Public Health,International Branch Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors: Monireh
authors: M
authors: Majlesi
keywords: Air quality; Fuzzy c-mean clustering; Fuzzy inference system; Iran