SRCosmos:

Order of appearence	Full citation	SRCosmos Link
1	Artinano B, Querol X, Salvador P, Rodriguez S, Alastuey A, (2001) Assessment of airborne particulate matter in Spain in response to the new EU-directive, Atmos. Environ., 35, S43-S53.
2	Callen MS, De-La-cruz MT, Lopez JM, Murillo R, Navarro MV, Mastral AM, (2008a). Long-Range Atmospheric Transport and Local Pollution Sources on PAH Concentrations in a South European Urban Area. Fulfilling of the European Directive. Water, Air and Soil Pollution., 190, 271.
3	Callen MS, de la Cruz M.T., Lopez J.M., Murillo R., Navarro M.V. and Mastral A.M. (2008b). Some inferences on the mechanism of atmospheric gas-particle partitioning of PAH at Zaragoza (Spain). Chemosphere, 73, 1357-1365.
4	Callen MS, Lopez JM, Mastral AM, (2010). Seasonal variation of Benzo(a)pyrene in the Spanish airborne PM10. Multivariate linear regression model applied to estimate BaP concentrations. J. Haz. Mat., 180, 648-655.
5	Callen MS, Lopez JM, Mastral AM, (2011). Characterization of PM10-bound polycyclic aromatic hydrocarbons in the ambient air of Spanish urban and rural areas. J. Environ. Monit., 13, 319.
6	Directive 2004/107/EC of the European Parliament and of the Council of 15 December 2004 relating to arsenic, cadmium, mercury, nickel and PAH in ambient air. (2004).
7	Directive 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe.
8	Forster C, Wandinger U, Wotawa G, James P, Mattis I, Althausen D, Simmonds PO, Doherty S, Kleefeld C, Jennings SG, Schneider J, Trickl T, Kreipl S, Jager H, Stohl A, (2001). Transport of boreal forest fire emissions from Canada to Europe. J. Geophys. Res., 106, 22, 887-906.
9	Larsen JC, Larsen PB, (1998). Chemical carcinogens. In R. E. Hester and R. M. Harrison, Eds., Air pollution and health. Cambridge: The Royal Society of Chemistry, p.33.
10	Manoli E, Voutsa D, Samara C, (2002) Chemical characterization and source identification/apportionment of fine and coarse air particles in Thessaloniki, Greece, Atmos. Environ., 36, 949–961.
11	Regulation (EC) No1272/2008 of the European Parliament and of the Council of 16th December 2008 on classification, labeling
12	and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006.
13	Salvador P, (2004) Caracterizacion de la contaminacion atmosferica producida por particulas en suspension en Madrid, Doctoral Thesis, University of Madrid
14	Vendrame R, Braga RS, Takahata Y, Galvao DS, (2001). Structure-carcinogenic activity relationship studies of polycyclic aromatic hydrocarbons (PAHs) with pattern-recognition methods, J. Mol. Struct. (Theochem), 539, 253-265.
15	Viana M, (2003) Levels, composition and origin of the atmospheric particulate matter in the North and East of the Iberian Peninsula and Canary Islands (in Spanish), Doctoral Thesis, Universitat de Barcelona.

Keywords	PM10, PAH, BaP, carcinogenic character, air pollutants
Abstract	One of the main pollutants influenced by anthropogenic activities is the particulate matter. Its nature is very varied including not only inorganic but also organic compounds. Into the organic compounds, polycyclic aromatic hydrocarbons (PAH) constitute a particular group of great concern due to their carcinogenic and mutagenic character. In this paper the carcinogenic character of airborne particulate matter less or equal than 10 microns (PM10) regarding PAH was studied in four different Spanish areas (ZGZ= a medium size European city; MON= a small industrial city; MNG= a background station and PIR= a rural background area close to the Pyrenees Mountain) in order to assess the pollution levels and the influence of meteorological conditions in a Mediterranean country like Spain. PM10 samples were collected by using a high-volume air capturer provided with a glass fiber filter coated with Teflon during two sampling periods: warm and cold seasons, respectively in 2008-2009. The organic components of the PM10 were extracted by Soxhlet and PAH were analyzed by gas chromatography with mass spectrometry mass spectrometry detection (CG-MS-MS). Total PAH concentrations were higher during the cold season, independently of the sampling site and they were related to the anthropogenic pollution sources favored by the meteorological conditions: low temperature, low solar radiation and low photochemical reactivity. In this way, ZGZ was the most polluted place followed by MON. A study of the temporal evolution of benzo(a)pyrene (BaP), one of the most carcinogenic PAH, was carried out obtaining the maximum concentrations of this pollutant during the cold season in the areas most affected by anthropogenic activities, finding a seasonal behavior of this pollutant for both sampling periods. High relative humidity, low winds and cold temperature, typical conditions of winter season were the meteorological conditions favoring the BaP accumulation. The guideline value of BaP established by the Directive 2004/107/EC of 1.0 ng m-3 was only exceeded in one of the sampling sites during the cold season for the 13% of the dates. A positive correlation, statistically significant at 95% level, was found between BaP and PM10 for the two sampling points with the highest BaP concentrations, indicating that pollution sources were the same.
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Name	Affiliation	Home page	e-mail	Total pubs
Callen MS	Instituto de Carboquimica (CSIC), C/Miguel Luesma Castan, 4, 50018 Zaragoza (Spain)		marisol@icb.csic.es	10
Lopez JM	Instituto de Carboquimica (CSIC), C/Miguel Luesma Castan, 4, 50018 Zaragoza (Spain)			9
Mastral AM	Instituto de Carboquimica (CSIC), C/Miguel Luesma Castan, 4, 50018 Zaragoza (Spain)		marisol@icb.csic.es	10