Περίληψη:
Previous studies reported significant variability of air pollutants across Europe with the lowest concentrations generally found in Northern Europe and the highest in Southern European countries. Within the MED-PARTICLES project the spatial and temporal variations of long-term PM and gaseous pollutants data were investigated in traffic and urban background sites across Southern Europe. The highest PM levels were observed in Greece and Italy (Athens, Thessaloniki, Turin and Rome) while all traffic sites showed high NO2levels, frequently exceeding the established limit value. High PM2.5/PM10ratios were calculated indicating that fine particles comprise a large fraction of PM10, with the highest values found in the urban background sites. It seems that although in traffic sites the concentrations of both PM2.5and PM10are significantly higher than those registered in urban background sites, the coarse fraction PM2.5-10is more important at the traffic sites. This fact is probably due to the high levels of resuspended road dust in sites highly affected by traffic, a phenomenon particularly relevant for Mediterranean countries. The long-term trends of air pollutants revealed a significant decrease of the concentration levels for PM, SO2and CO while for NO2no clear trend or slightly increasing trends were observed. This reduction could be attributed to the effectiveness of abatement measures and strategies and also to meteorological conditions and to the economic crisis that affected Southern Europe. © 2014 Elsevier B.V.
Συγγραφείς:
Karanasiou, A.
Querol, X.
Alastuey, A.
Perez, N.
Pey, J.
Perrino, C.
Berti, G.
Gandini, M.
Poluzzi, V.
Ferrari, S.
de la Rosa, J.
Pascal, M.
Samoli, E.
Kelessis, A.
Sunyer, J.
Alessandrini, E.
Stafoggia, M.
Forastiere, F.
Angelini, P.
Bisanti, L.
Cadum, E.
Catrambone, M.
Chiusolo, M.
Davoli, M.
de'Donato, F.
Demaria, M.
Grosa, M.
Faustini, A.
Pandolfi, P.
Pelosini, R.
Pietrodangelo, A.
Pizzi, L.
Priod, G.
Randi, G.
Ranzi, A.
Rowinski, M.
Scarinzi, C.
Stivanello, E.
Zauli-Sajani, S.
Dimakopoulou, K.
Elefteriadis, K.
Katsouyanni, K.
Maggos, T.
Michalopoulos, N.
Pateraki, S.
Petrakakis, M.
Rodopoulou, S.
Sypsa, V.
Artiñano, B.
Barrera-Gómez, J.
Basagaña, X.
Diaz, J.
Jacquemin, B.
Linares, C.
Ostro, B.
Tobias, A.
Bidondo, M.
Declercq, C.
Le Tertre, A.
Lozano, P.
Medina, S.
Pascal, M.
Λέξεις-κλειδιά:
Aerosols; Fog; Particles (particulate matter); Urban growth, Concentration levels; European Countries; Gaseous pollutants; Mediterranean basin; Mediterranean countries; Meteorological condition; Southern Europe; Spatial and temporal variation, Air pollution, carbon monoxide; nitrogen dioxide; ozone; sulfur dioxide, aerosol; atmospheric pollution; carbon monoxide; nitrogen dioxide; particulate matter; spatial variation; sulfur dioxide; temporal variation; traffic emission; trend analysis; urban pollution, air analysis; air pollution; ambient air; article; chemical composition; concentration (parameters); exhaust gas; fractionation; geographic distribution; Greece; Italy; particle resuspension; particle size; particulate matter; priority journal; urban area, Athens [Attica]; Attica; Central Macedonia; Greece; Italy; Lazio; Piedmont [Italy]; Roma [Lazio]; Rome; Thessaloniki [Central Macedonia]; Torino [Piedmont]; Turin, Aerosol; Air pollution; PM trends; PM(10); PM(2.5); Southern Europe, Air Pollutants; Air Pollution; Dust; Environmental Monitoring; Greece; Italy; Particulate Matter; Seasons
