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| Titel |
Size-segregated mass distributions of aerosols over Eastern Mediterranean: seasonal variability and comparison with AERONET columnar size-distributions |
| VerfasserIn |
E. Gerasopoulos, E. Koulouri, N. Kalivitis, G. Kouvarakis, S. Saarikoski, T. Mäkelä, R. Hillamo, N. Mihalopoulos |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 7, no. 10 ; Nr. 7, no. 10 (2007-05-15), S.2551-2561 |
| Datensatznummer |
250004986
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| Publikation (Nr.) |
 copernicus.org/acp-7-2551-2007.pdf |
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| Zusammenfassung |
| This work provides long-term (2004–2006) size segregated measurements of
aerosol mass at a remote coastal station in the southern Europe, with the
use of size-selective samplings (SDI impactor). Seven distinct modes were
identified in the range 0–10 µm and the dominant were the
"Accumulation 1" (0.25–0.55 µm) and the "Coarse 2" (3–7 µm)
modes. The seasonal characteristics of each mode were thoroughly studied and
different sources for submicron and supermicron particles were identified,
the first being related to local/regional and transported pollution with
maximum in summer and the latter to dust from deserted areas in Northern
Africa maximizing in spring. On average, PM2.5 and PM1 accounted
for 60% and 40% of PM10 mass, respectively.The representativity
of the ground-based measurements for the total column was also investigated
by comparing the measured aerosol mass distributions with the AERONET volume
size distribution data. Similar seasonal patterns were revealed and AERONET
was found adequate for the estimation of background levels of both fine and
coarse particles near surface, with certain limitations in the case of
pollution or dust abrupt episodes due to its low temporal coverage. |
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