title: Source apportionment of total suspended particulates in an arid area in southwestern Iran using positive matrix factorization.
abstract: The present study sough to apportion the possible sources of TSP in Ahvaz, southwestern Iran. A high correlation coefficient existed between measured and predicted values (R(2) = 0.99), indicating that the data were well modeled. Seven factors were resolved by the model: crustal dust (56%), road dust (7%), motor vehicles (8%), marine aerosol (9%), secondary aerosol (7%), metallurgical plants (4.5%), and finally petrochemical plants & fossil fuel combustion (8.5%). In contrast with crustal dust having higher relative contributions during spring and summer, motor vehicles had higher contributions during fall and winter. In addition, the latter had higher contributions during weekdays than weekends.
authors.affiliation: Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. hsowlat@gmail.com
authors.forename: Mohammad Hossein
authors.initials: MH
authors.lastname: Sowlat
authors.forename: Kazem
authors.initials: K
authors.lastname: Naddafi
authors.forename: Masud
authors.initials: M
authors.lastname: Yunesian
authors.forename: Peter L
authors.initials: PL
authors.lastname: Jackson
authors.forename: Abbas
authors.initials: A
authors.lastname: Shahsavani
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000706:statistics & numerical data*; D001272:Atmosphere / Q000737:chemistry; D002980:Climate; D004784:Environmental Monitoring / Q000379:methods*; D007492:Iran; D052638:Particulate Matter / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter