title: Spatial variability of carbonaceous aerosol concentrations in East and West Jerusalem.
abstract: Carbonaceous aerosol concentrations and sources were compared during a year long study at two sites in East and West Jerusalem that were separated by a distance of approximately 4 km. One in six day 24-h PM(2.5) elemental and organic carbon concentrations were measured, along with monthly average concentrations of particle-phase organic compound tracers for primary and secondary organic aerosol sources.Tracer compounds were used in a chemical mass balance ICMB) model to determine primary and secondary source contributions to organic carbon. The East Jerusalem sampling site at Al Quds University experienced higher concentrations of organic carbon (OC) and elemental carbon (EC) compared to the West Jerusalem site at Hebrew University. The annual average concentrations of OC and EC at the East Jerusalem site were 5.20 and 2.19 μg m(-3), respectively, and at the West Jerusalem site were 4.03 and 1.14 μg m(-3), respectively. Concentrations and trends of secondary organic aerosol and vegetative detritus were similar at both sites, but large differences were observed in the concentrations of organic aerosol from fossil fuel combustion and biomass burning, which was the cause of the large differences in OC and EC concentrations observed at the two sites.
authors.affiliation: Environmental Chemistry and Technology Program, University of Wisconsin-Madison, Madison, Wisconsin, USA.
authors.forename: Erika
authors.initials: E
authors.lastname: von Schneidemesser
authors.forename: Iiabin
authors.initials: I
authors.lastname: Zhou
authors.forename: Elizabeth A
authors.initials: EA
authors.lastname: Stone
authors.forename: James I
authors.initials: JI
authors.lastname: Schauer
authors.forename: Jacob
authors.initials: J
authors.lastname: Shpund
authors.forename: Shmuel
authors.initials: S
authors.lastname: Brenner
authors.forename: Radwan
authors.initials: R
authors.lastname: Qasrawi
authors.forename: Ziad
authors.initials: Z
authors.lastname: Abdeen
authors.forename: Jeremy A
authors.initials: JA
authors.lastname: Sarnat
mesh_terms: D000336:Aerosols / Q000032:analysis*; D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000706:statistics & numerical data*; D002244:Carbon / Q000032:analysis*; D004784:Environmental Monitoring; D007557:Israel; D010316:Particle Size; D052638:Particulate Matter / Q000032:analysis
chemical_list: D000336:Aerosols; D000393:Air Pollutants; D052638:Particulate Matter; D002244:Carbon