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Istituto sull'inquinamento atmosferico

Torna all'elenco Contributi in rivista anno 2010

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Evaluation of a simultaneous sampling method of PAHs, PCDD/Fs and dl-PCBs in ambient air

Anno di pubblicazione: 2010

Autori: Mosca S., Torelli G.N., Guerriero E., Tramontana G., Pomponio S., Rossetti G., Rotatori M.,

Affiliazioni autori: Institute for Atmospheric Pollution, Italian National Research Council, Via Salaria km 29,300, 00015 Monterotondo Stazione, Rome, Italy

Autori CNR:

  • ETTORE GUERRIERO
  • SILVIA MOSCA
  • MAURO ROTATORI
  • GIORGIA NADIA TORELLI
  • GIOVANNA TRAMONTANA

Abstract: The Stockholm Convention on Persistent Organic Pollutants (POPs) was signed in May 2001 by 127 countries. Currently, 12 substances are regulated by the convention, and the work on finding new candidate chemicals to the convention has started. Among these 12 substances, dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and polychlorinated biphenyls (PCBs) are the objects of this study. There are no European standard methods for the simultaneous determination of these microorganic compounds, together with polycyclic aromatic hydrocarbons (PAHs) in ambient air-they must be referred to three different methods developed by the U. S. Environmental Protection Agency (EPA). The quali-quantitative analysis of these microorganic pollutants is an important challenge due to the low concentrations at which they may be present. In this study, the development of a simplified, alternative, fast and affordable sampling method for the determination of PAHs, PCDDs, PCDFs and PCBs in ambient air was performed. The sampling time was extended from 24 h to 7 d in order to enrich the sample, to fall within the instrumental limits of detection and to reduce the number of samples to be processed and, therefore, errors that may arise. First of all, experiments with labelled standards were conducted in the research area of Montelibretti (rural station, which is sited about 20 km northeast of Rome), with the purpose of optimizing sampling efficiency. Finally, the method was applied to the analysis of these compounds in the air of a suburban area with small industrial plants in order to evaluate the feasibility of the proposed sampling method system, by comparing concentrations of native compounds acquired during simultaneous daily and weekly sampling.

Pagine da: 1092

Pagine a: 1099

Pagine totali: 8

Rivista:

Journal of environmental monitoring Royal Society of Chemistry,
Paese di pubblicazione: Regno Unito
Lingua: inglese
ISSN: 1464-0325

Numero volume: 12

DOI: 10.1039/b927004c

Indicizzato da: ISI Web of Science (WOS) [000277690100009]

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