The investigation of metal concentrations in street dust samples in Aqaba city,Jordan |
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Authors: | Omar Ali Al-Khashman |
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Institution: | (1) Prince Faisal Center for Dead Sea, Environmental and Energy Research, Mutah University, Al-Karak, 61710, Jordan |
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Abstract: | The concentrations of metals (Fe, Zn, Cu, Cr, Pb, Cd, Ni, Mn and Co) in 140 street dust samples were collected from Aqaba
city, Jordan. These samples were determined using flame atomic absorption spectrophotometry after digestion with aqua regia.
The highest levels of metal concentrations were found in the samples from heavy traffic. While the lowest levels of metal
ions were noted in the street dust samples from hospital and health centers and school gardens. The results of this study
were compared with several cities around the world. The levels of the metal concentrations found were generally below the
mean world-wide values of street dust samples. Metal values in urban street dust samples were several times higher than the
control levels. The statistical analyses were applied to the data matrix to determine the analytical results and to identify
the possible source of pollution in the studied area. Correlations between the metal concentrations of the street dust samples
were obtained. Factor analysis showed that the area was mainly influenced by three sources, namely lithogenic, traffic, and
industrial. |
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Keywords: | Street dust Metals Statistical analysis Pollution Traffic Jordan |
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