Heavy metal pollution in the Elbasan city, based on their content in PM10
2017
Bekteshi, Lirim (Faculty of Natural Sciences, Elbasan (Albania). Department of Chemistry) | Karamelo, Pirro (Faculty of Natural Sciences, Elbasan (Albania). Department of Chemistry)
Contamination from heavy metals today is a global problem. Knowing their impact on the environment and human health the study of heavy metal pollution. Today has taken special importance. Large urban areas today are considered the most polluted. In this study, heavy metal pollution in the city of Elbasan was assessed based on their content in PM10. Heavy metals, released from human activity, spread in the air by joining the dust particles, so the assessment of their content in the dust particles provides information on the level of pollution in different areas of the city. For the sampling of PM10, a vacuum pump with 3 l/min was used. The pump is equipped with an impactor, for separating particles smaller than 10 μm. Membrane filters were used for sampling, which are recommended to be used in determining trace elements. The sampling was performed in three different areas of the city. In addition to these three stations, samples were also taken at a station located in Gjinar, away from town, traffic and other anthropogenic sources of pollution. The PM10 samples were analyzed for copper, zinc, lead, cadmium, chromium, nickel and iron. Determination of the metal content in PM10 samples was carried out using FAAS technique, with air-acetylene flame (VARIAN Spect.AA-20). By comparing the data, it can be concluded that concentrations of heavy metals in the air of the city of Elbasan, are generally lower than the concentrations of some urban areas of Europe and USA. By comparing the data, it can be concluded that concentrations of heavy metals in the Elbasan city, are generally lower than the concentrations of some urban areas in Europe and the USA.
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