Road Traffic and PM10, PM2.5 Emission at an Urban Area in Algeria: Identification and Statistical Analysis

Document Type: Original Research Paper

Authors

1 Spectrochemistry and Structural Pharmacology Laboratory, Department of Chemistry Science Faculty, University of Tlemcen, Algeria Scientific and Technical Research Center in Physico-Chemical Analysis CRAPC, PB 384, Industrial zone of Bou-Ismail, RP 42004, Tipaza, Algeria

2 Nuclear Research Centre of Algiers (CRNA), 2, boulevard Frantz Fanon, Algeria

3 Spectrochemistry and Structural Pharmacology Laboratory, Department of Chemistry Science Faculty, University of Tlemcen, Algeria

4 Laboratory of Applied Fundamental Physics (FUNDAPL), Blida University1, Faculty of Sciences PV 08, Soumaa Road, PB 270 -Blida-Algeria University Centre of Tamanrasset, Algeria

Abstract

Air quality in greater Algiers, in Algeria was assessed analyzing aerosol particulate matter (PM10 and PM2.5) at a site influenced by heavy road traffic. Particulate matters were collected using a Gent sampler to characterize the atmospheric aerosol of Algiers. An Energy dispersive X ray spectrometer (EDXRF) was used to determine the heavy metal concentrations in the PM2.5 and PM10 size fractions. Principal Component analysis and Enrichment factor were used to identify the major sources of air pollutants for PM10 fraction in the studied area. Backward trajectories were calculated in order to identify potential distant sources that contribute to particulate pollution in our site. Significant concentrations of PM 2.5 and PM10 as well as associated heavy metals have been documented. The mean concentrations of heavy metals contained in PM10 and PM2.5 were, in descending order, Fe>Zn>Ni>Pb>Mn>Co>Cr; Pb>Mn>Co>Fe>Zn>Ni>Cr respectively. The contribution of road traffic to the levels of fine (PM2.5), and coarse (PM10) particles were studied.

Keywords


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