Contributions of natural sources to high PM10 and PM2.5 events in the eastern Mediterranean

Date

2007-06-01

Author

Koçak, Mustafa
Kubilay, Nilgun

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

158
views

0
downloads

In total 562 daily PM10 and PM2.5 samples were collected from April 2001 to April 2002 at a rural site (Erdemli) located on the coast of the Eastern Mediterranean. The annual mean PM10 and PM2.5 levels were 36.4 +/- 27.8 and 9.7 +/- 5.9 mu g m(-3), respectively. PM10 and PW2.5 concentrations indicated orders of magnitude change from day to day (PM10 = 2-326 mu g m(-3); PM2.5 = 0.5-28 mu g m(-3)). The highest levels of PM10 were observed during the transition period (March, April and May) due to mineral dust transported from North Africa and during winter due to sea spray generation. However, PM2.5 levels exhibited higher concentrations during summer resulting from an enhanced production of secondary aerosols. The PM2.5/PM10 ratio (0.25) and categorization of air mass back trajectories indicated that PM10 at the study area is dominated by primary aerosol emissions (mineral dust particles from the Saharan Desert and sea salt particles from the Mediterranean Sea itself). During the whole sampling period 28 and 51 events exceeded the recommended maximum values of 50 and 15 mu g m(-3) for PM10 and PM2.5, respectively. Source apportionment analysis indicated that PM10 exceedances originated as a consequence of natural events (mineral dust similar to 40%; sea salt similar to 50%) whereas PM2.5 exceedances were accounted primarily by pollution events (in 90% of the cases).

Subject Keywords

Air quality, PM10 and PM2.5, Saharan dust, Eastern mediterranean

URI

https://hdl.handle.net/11511/30143

Journal

ATMOSPHERIC ENVIRONMENT

DOI

https://doi.org/10.1016/j.atmosenv.2007.01.009

Collections

Graduate School of Marine Sciences, Article

Suggestions

OpenMETU
Core

Concentration and chemical composition of PM2.5 and PM10-2.5 in the Northeastern Mediterranean Kubilay, Nilguen; Koçak, Mustafa; Mihalopoulos, Nikos (2006-09-01) Two stage aerosol samples (PM10-2.5 and PM2.5) were collected at a rural site (Erdemli) located on the coast of the Northeastern Mediterranean, between April 2001 and April 2002. A total of 581 aerosol samples were analysed for trace elements (Fe, Ti, Mn, Ca, V, Ni, Zn, Cr) and water soluble ions (Na+, NH4+, K+, Mg2+, Ca2+, Cl-, Br-, NO3-, SO42-, C2O42- and MS-). The annual mean PM10 and PM2.5 levels were 36.4 +/- 27.8 mu g m(-3) and 9.7 +/- 5.9, respectively. The highest levels of PM10 were observed during...
Influence of mineral dust transport on the chemical composition and physical properties of the Eastern Mediterranean aerosol Koçak, Mustafa; Zarmpas, P.; Seguret, M. J. M.; Herut, B.; Kallos, G.; Mihalopoulos, N.; Kubilay, N.; Nimmo, M. (2012-09-01) Bulk aerosol samples were collected from three different coastal rural sites located around the Eastern Mediterranean, (i) Erdemli (ER), Turkey, (ii) Heraklion (HR), Crete, Greece, and (iii) Tel Shikmona (TS), Israel, during two distinct mineral dust periods (October, 2007 and April, 2008) in order to explore the temporal and geographical variability in the aerosol chemical composition. Samples were analyzed for trace elements (Al, Fe, Mn, Ca, Cr, Zn, Cu, V, Ni, Cd, Pb) and water-soluble ions (Cl-, NO3-, SO...
Chemical composition of the fine and coarse fraction of aerosols in the northeastern Mediterranean Koçak, Mustafa; Kubilay, Nilguen (2007-11-01) Two-stage aerosol samples (PM10-2.5 and PM2.5) were collected at a coastal rural site located in the northeastern Mediterranean, between April 2001 and 2002. A total of 562 aerosol samples were analyzed for trace elements (Fe, Ti, Mn, Ca, V, Ni, Zn, Cr) and water-soluble ions (Na+, NH4+, K+, Mg2+, Ca2+, Cl-, Br-, NO3-, SO42-, C2O42- and 3 4 4 MS-:methane sulfonate). PM10, crustal elements, sea salt aerosols and NO3- were mainly associated with the coarse mode SO42-, C2O42-; whereas non-sea salt (nss) SO42-,...
Chemical composition of Eastern Mediterranean aerosol and precipitation: Indications of long-range transport Almomani, Idrees; GÜLLÜ, GÜLEN; Ölmez, İlhan; ELER, ÜNAL; Ortel, E; Şirin, Gürol; Tuncel, Süleyman Gürdal (1997-01-01) Daily aerosol and wet-only precipitation samples were collected, between January 1992 and January 1994 at a permanent station established on the Mediterranean coast of Turkey. Collected aerosol and rain samples were analyzed for major ions and a host of trace elements using a combination of analytical techniques, including ion chromatography, atomic absorbtion spectrometry and instrumental neutron activation analysis. The results have demonstrated;hat concentrations of parameters studied are higher than cor...
Effect of riverine nutrients on coastal water ecosystems: A case study from the northeastern Mediterranean shelf Dogan-Saglamtimur, N; Tuğrul, Süleyman (2004-01-01) Hydro-chemical data were obtained from a shallow and deep water station in the Turkish shelf zone of the NE Mediterranean with approximately monthly intervals from January to December 2002. The shallow station (0.5 miles off the coast) is influenced directly by the small Lamas River having high nitrate (63-121 muM) and silicate (52-118 muM) values, but very low phosphate concentrations (30-760 nM). Thus, nitrate and silicate concentrations of the shallow station are extremely variable and much higher than t...

Citation Formats

M. Koçak and N. Kubilay, “Contributions of natural sources to high PM10 and PM2.5 events in the eastern Mediterranean,” ATMOSPHERIC ENVIRONMENT, pp. 3806–3818, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30143.