Source of barium in road dust ?
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Barium in road dust primarily originates from industrial activities and vehicular traffic . Studies have shown that road dust samples from areas with heavy traffic exhibit higher concentrations of Ba, indicating a significant influence from traffic-related sources . Additionally, the presence of Ba in road dust is linked to anthropogenic sources, with road dust and drainage gutter sediment containing elevated levels of Ba compared to riverbed sediment . Furthermore, the solubility and bioaccessibility of Ba in soil and dust samples near mining and milling areas vary significantly, highlighting the diverse sources of Ba exposure, including mineral extraction industries . Overall, the data suggests that industrial activities and traffic emissions are the major contributors to the presence of barium in road dust.
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Open access•Journal Article 1 Citations | Barium in road dust of Xi'an likely originates from pollution sources, as its enrichment index was above 2, indicating significant contamination along with other elements like Cr, As, and Pb. |
27 Citations | The main source of barium in road dust is likely from barite present in the waste rock used for road construction near mining areas, potentially weathered to more soluble forms. |
11 Citations | Barium in road dust is likely sourced from non-exhaust traffic emissions, particularly from brake and tyre wear, as indicated by strong correlations with antimony and copper in the study. |
82 Citations | Barium in road dust is primarily sourced from vehicular activities, as indicated by a meaningful correlation with zinc and a moderate positive correlation with lead, suggesting influence from traffic. |
1 Citations | Barium is not specifically mentioned in the abstract. |
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