title: Concentration of organic micropollutants in the atmosphere of Trieste, Italy.
abstract: OBJECTIVE
  PCDD/Fs, PCBs, and PAHs, ubiquitous environmental pollutants which are part of the POPs, are mainly produced by anthropogenic activities as well as by natural processes. Occurrences of these pollutants in different sites in Trieste are presented. PCDD/Fs distribution and their possible emission sources are discussed.
  
  
  METHODS
  Air samples were collected in different sites near the industrial area, in the city center, and in a background area, using a high-volume sampler equipped with a quartz fiber filter and a PUF. Each sampling lasted a week.
  
  
  RESULTS
  The concentrations of the organochlorinated pollutants are consistent with literature data (ΣPCDD/Fs and Σdl-PCBs were 5-38 fg TEQ/Nm(3) and 4-31 fg TEQ/Nm(3), respectively), and an apparent seasonal trend was found with slightly higher concentrations in the winter and lower levels in both summer campaigns. Moreover, the isomer profile of each sampling campaign was compared to the fingerprint of a sintering plant, a cement plant, and an incinerator, the main industrial activities in Trieste.
  
  
  CONCLUSIONS
  The organic micropollutants were detected in levels consistent with literature data. The results show that the pollutants are uniformally distributed in the atmosphere of Trieste. PCDD/F fingerprints in each site remained almost identical during summer and winter, confirming the yearly prevalence of the emissions from the nearby sintering plant.
authors: Institute for Atmospheric Pollution Research, Italian National Research Council (CNR-IIA), Via Salaria km 29,300, 00015 Monterotondo, Rome, Italy. mosca@iia.cnr.it
authors: S
authors: S
authors: Mosca
authors: G N
authors: GN
authors: Torelli
authors: G
authors: G
authors: Tramontana
authors: E
authors: E
authors: Guerriero
authors: M
authors: M
authors: Rotatori
authors: M
authors: M
authors: Bianchini
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D001272:Atmosphere / Q000032:analysis*; D002947:Cities; D004784:Environmental Monitoring / Q000379:methods; D005663:Furans / Q000032:analysis; D007558:Italy; D011078:Polychlorinated Biphenyls / Q000032:analysis; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives / Q000032:analysis; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis
chemical_list: D000393:Air Pollutants; D005663:Furans; D000072317:Polychlorinated Dibenzodioxins; D011084:Polycyclic Aromatic Hydrocarbons; D011078:Polychlorinated Biphenyls