title: Source apportionment of volatile organic compounds in Tehran, Iran.
abstract: Identifying the sources of volatile organic compounds (VOCs) is key issue to reducing ground-level ozone and PAN. A multivariate receptor model (Unmix) was used for the determination of the contributions of VOCs sources in Tehran-Iran. Concentrations of ambient C2-C10 VOCs were measured continuously and online at the center of Tehran city during the winter of 2012. A high correlation coefficient existed between measured and predicted values (R (2) = 0.99), indicating that the data were well modeled. Five possible VOCs source categories were identified and mobile sources such as vehicle exhaust (61 %) and fuel evaporation (12 %) more than half of the total VOC concentration. City gas and CNG sources, biogenic source, and industrial solvent source categories accounted for 17 %, 8 % and 2 % of the total VOC, respectively. Result showed Unmix for VOCs source apportionment can be used to analyze and generate air pollution control strategies and policies.
authors.affiliation: Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. marya.sarkhosh@yahoo.com
authors.forename: Maryam
authors.initials: M
authors.lastname: Sarkhosh
authors.forename: Amir Hossein
authors.initials: AH
authors.lastname: Mahvi
authors.forename: Masud
authors.initials: M
authors.lastname: Yunesian
authors.forename: Ramin
authors.initials: R
authors.lastname: Nabizadeh
authors.forename: Saeedeh Hemmati
authors.initials: SH
authors.lastname: Borji
authors.forename: Ali Ghiami
authors.initials: AG
authors.lastname: Bajgirani
mesh_terms: D000393:Air Pollutants / Q000032:analysis* / Q000737:chemistry; D002947:Cities; D003247:Conservation of Natural Resources; D004784:Environmental Monitoring; D004787:Environmental Pollution / Q000517:prevention & control; D007220:Industrial Waste; D007492:Iran; D010126:Ozone / Q000032:analysis / Q000737:chemistry; D010463:Peracetic Acid / Q000031:analogs & derivatives / Q000032:analysis / Q000737:chemistry; D001335:Vehicle Emissions / Q000032:analysis; D055549:Volatile Organic Compounds / Q000032:analysis* / Q000737:chemistry
chemical_list: D000393:Air Pollutants; D007220:Industrial Waste; D001335:Vehicle Emissions; D055549:Volatile Organic Compounds; D010126:Ozone; D010463:Peracetic Acid; C004185:peroxyacetyl nitrate