E-resources
Peer reviewed
-
Kopanakis, I.; Eleftheriadis, K.; Mihalopoulos, N.; Lydakis-Simantiris, N.; Katsivela, E.; Pentari, D.; Zarmpas, P.; Lazaridis, M.
Atmospheric research, 03/2012, Volume: 106Journal Article
Particulate matter (PM 10, PM 2.5) measurements were performed during the period 2003–2009 at the Akrotiri monitoring station (suburban/rural) on the island of Crete, Greece. Concurrent measurements of PM 10 size distribution/chemical composition were also performed at selected time intervals to determine the PM sources in the region and the factors controlling their levels. Using a beta radiation attenuation monitor, the mean PM 10 concentration during the measuring period (15.04.2003–31.12.2009) was equal to 36.1 ± 9.5 μg/m 3, whereas the PM 2.5 concentration was equal to 23.6 ± 5.8 μg/m 3. Back trajectories showed that the dominant air mass origin was from North and Northwest Europe but the intrusion of southern air masses lead to elevated PM concentrations due to Saharan dust events. The 24-h EU limit value of 50 μg/m 3 (PM 10) was exceeded approximately 13.5% during the measured period. Furthermore, the PM 10 mass size distribution of metals, ions and organic carbon/elemental carbon (OC/EC) was characterized using a 9-stage Andersen non-viable impactor and a gravimetric sequential PM 10 sampler during two selected periods. The mean PM 10 concentration during the first sampling period was equal to 28.3 ± 12.4 μg/m 3 (10.08.2007–28.08.2007), whereas during the second sampling period (09.07.2008–19.07.2008) was 41.6 ± 14.0 μg/m 3. The measurements showed a bimodal size distribution for the aerosol mass concentration. PM 2.1 accounted for 41.0% and 37.2% for PM 10 during the two periods respectively. Over the measurement campaigns ions dominated the PM 10 mass (50–80%) with the organic mass and metals comprising the major part of the rest. The OC concentration was equal to 2.3 ± 1.2 μg/m 3, whereas the EC concentration was equal to 0.8 ± 0.2 μg/m 3. Finally, black carbon concentrations were measured in August 2007 with an aethalometer. The mean daily value of black carbon was 0.69 ± 0.22 μg/m 3. The measurements showed that the PM values measured at the station correspond to a background/rural station in the region and are in agreement with other measurements in the Eastern Mediterranean region. ► We examine aerosol levels and variability in conjunction with their sources and their chemical signatures. ► Size distribution aerosol data chemically resolved are examined showing a bimodal size distribution. ► Ions dominate the PM 10 mass with Organic mass and metals comprising the major part of the rest. ► The 24-h EU limit value of 50 μg/m 3 (PM 10) was exceeded approximately 13.5% during the measured period. ► It is the first study in this area where OC and EC were determined in the whole range of the aerosol size distribution.
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|
Source: Personal bibliographies
and: SICRIS
The material is available in full text. If you wish to order the material anyway, click the Continue button.