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Heavy metal concentrations in roadside soil and street dust from Petra region, Jordan

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Abstract

Concentrations of Cd, Cu, Fe, Pb, and Zn were measured in the samples of street dust and surface roadside soil before Jordan switched to unleaded fuel usage. The samples were collected from Petra, the most tourist-attractive site in Jordan. The samples were analyzed for heavy metals by atomic absorption spectrophotometry. Our results show that the distribution of metals in the soil samples is affected by wind direction in the investigated area. The highest level of metals was found in the eastern parts of the roads due to the westerly-dominant wind in the studied area. The contamination levels of metals decrease as the distance from the edge of the road increases. In the roadside soil samples, the means for the concentrations of the metals at 1 m from the east side of the main road are 1.0, 19.1, 3791.4, 177.0, and 129.0 mg kg−1 for Cd, Cu, Fe, Pb, and Zn, respectively. In the samples of street dust, the means of the concentrations of the metals in the investigated area are 9.7, 11.8, 4694.4, 31.6, and 24.8 mg kg−1 for Cd, Cu, Fe, Pb, and Zn, respectively. In conclusion, the lithogenic origins (traffic emissions) are responsible for the diffusion of these metals in the studied region.

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Correspondence to Eid Musa Eid Alsbou.

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Alsbou, E.M.E., Al-Khashman, O.A. Heavy metal concentrations in roadside soil and street dust from Petra region, Jordan. Environ Monit Assess 190, 48 (2018). https://doi.org/10.1007/s10661-017-6409-1

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  • DOI: https://doi.org/10.1007/s10661-017-6409-1

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