Composition of selected heavy metals in road dust from Kuala Lumpur city centre
This study was carried out in order to determine the concentration of heavy metals, e.g., lead (Pb), cadmium (Cd), copper (Cu), zinc (Zn), iron (Fe), manganese (Mn), nickel (Ni) and chromium (Cr) in road dust in Kuala Lumpur’s city centre. Samples were collected from four sampling locations, ea...
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| Main Authors: | , , |
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| 格式: | Article |
| 語言: | English English English |
| 出版: |
2014
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| 主題: | |
| 在線閱讀: | http://eprints.unisza.edu.my/4837/1/FH02-ESERI-14-00317.pdf http://eprints.unisza.edu.my/4837/2/FH02-ESERI-14-01051.jpg http://eprints.unisza.edu.my/4837/3/FH02-ESERI-14-01927.jpg http://eprints.unisza.edu.my/4837/ |
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| 總結: | This study was carried out in order to determine
the concentration of heavy metals, e.g., lead (Pb), cadmium
(Cd), copper (Cu), zinc (Zn), iron (Fe), manganese (Mn),
nickel (Ni) and chromium (Cr) in road dust in Kuala
Lumpur’s city centre. Samples were collected from four
sampling locations, each of which had four sampling points
and three replications. Heavy metals from different fractions of particles separated by different diameter sizes:
d\63 lm (Fraction A), 63\d\125 lm (Fraction B)
and 125 \d\250 lm (Fraction C) were analyzed using
inductively coupled plasma mass spectrometry. The results
from this study showed that concentration of heavy metals
was dominated by the smallest particle size: \63 lm and
that Fe was the most abundant heavy metal overall, followed by Cu[Mn[Zn[Pb[Ni [Cr [Cd. The fact
that Cd had the highest enrichment factor value (EF) for all
particle sizes indicates that anthropogenic activities contributed to the presence of this metal. There was also a
higher EF value for heavy metals in small particle (Fraction
A), compared to Fraction B and C, which suggests that fine
particles were being produced through anthropogenic
activities. Cluster analysis and principal component analysis demonstrated the likelihood of the heavy metals
detected in the road dust, originating from road traffic and
industrial activities. |
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