Contamination of Roadside Soil and Street Dusts with Heavy metals in Petra region, Jordan
Concentrations of Fe, Cu, Cd, Pb and Zn were measured in street dust samples and surface roadside soil collected from locations of varied vehicular traffic densities in the Petra city, Jordan. The samples were determined by atomic absorption spectrophotometery. Results showed that the higher levels of metals east of the road were due to westerly prevailing wind at the investigated area. It was found that wind direction affects the distribution of metals in soil samples. The contamination levels of metals decreased exponentially with distance from the edge of the road and dropped to the reference soil level at about 100m. In street dust samples, the mean concentration in the investigated area was 31.21, 11.78, 9.65, 31.58, and 24.79 mg kg-1 for Fe, Cu, Cd, Pb, and Zn respectively. In roadside soil samples, the mean concentrations metals concentrations, 1m east of the main road were 38.5, 18.2, 0.84, 185 and 105 mg kg-1 for Fe, Cu, Cd, Pb, and Zn respectively. These values for metals suggest that traffic emissions are the major source of these metals in the samples. The concentrations of metals in roadside soil increased with increasing traffic densities in the urban area.
metals street dust roadside soil contamination petra Jordan
Omar Ali AL-KHASHMAN
Department of Environmental Engineering,College of Mining and Environmental Engineering,Al-Hussein Bin Talal University,P.O. Box 20,Maan-Jordan
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
526-533
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）