The concentration of eight potentially toxic heavy metals (Cr, Cu, Ni,
V, Ti, Mn, Pb and As) were investigated in indoor and surrounding outdoor dust
samples collected from residential and commercial sites in Al-Karak city,
Jordan. It was found that at residential areas, the mean concentration of Cr,
Cu, Ni, V, Ti, Mn, Pb and As were 72.5, 90.5, 20.8, 37.9, 291.3, 238.8, 51.9
and 2.06 mg/kg, respectively. While, their mean concentrations for outdoor dust
were at the 51.7, 57.4, 10.0, 41.0, 351.2, 227.0, 52.7 and 2.7 mg/kg for the
same elements, respectively. For the commercial areas, their mean concentrations
were 58.5, 122.3, 15.0, 28.6, 195.7, 243.2, 110.4 and 2.4 mg/kg, respectively.
Whereas, their mean concentrations for the outdoor dust samples were 57.3,
93.4, 29.3, 27.3, 86.0, 259.4, 75.8 and 2.0 mg/kg, respectively. Furthermore, the relationship between outdoor
and indoor dusts was considered and it was clear that the main source of V, Ti,
Mn, Pb and As are vehicular emission with the exception of Ni, Cr and Cu which
was found at a higher concentration in the indoor dust samples than the outdoor
dust samples. The results of this study reveal that heavy metals distribution
is different in two investigated areas of the city as it was higher in the
commercial area compared to residential area due to higher traffic density. The
result indicated that soil or street dust play an important role in the
concentration build up in indoor and outdoor dust which originated most
probably from automobile emissions.
Primary Language | English |
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Journal Section | Articles |
Authors | |
Publication Date | June 30, 2017 |
Acceptance Date | May 18, 2017 |
Published in Issue | Year 2017 Volume: 12 Issue: 2 |
“Journal of International Environmental Application and Science”