TY  - JOUR
AU  - Mahmud, Mamun
AU  - Hasan, Md. Mujahid
PY  - 2025
DA  - 2025/01/20
TI  - Assessment of Heavy Metal Contamination on Road Dust: A Case Study of Khulna City
JO  - Advances in Environmental and Engineering Research
SP  - 008
VL  - 06
IS  - 01
AB  - The concentration of heavy metals in road dust poses significant risks to human health and the environment. This study investigates the characteristics of road dust, focusing on the contamination level of heavy metals like lead (Pb), iron (Fe), and arsenic (As). Road dust samples were collected from various locations in Khulna city. They went through acid digestion to determine the Pb, Fe, and As levels using ICP-OES, and bioavailable iron was assessed by mixing the dust samples with water. This study found no detectable levels of As in the road dust. Pb concentrations varied across different sites in the following order: Shiromoni Industrial Area > Fulbarigate > New Market > Sonadanga Residential Area. Iron concentrations followed slightly different orders: Shiromoni Industrial Area > New Market > Fulbarigate > Sonadanga Residential Area. The highest bioavailable iron was found at 2.73% in the Shiromoni Industrial Area, indicating a higher potential for iron uptake, followed by the New Market Area, Fulbarigate, and the lowest was 0.53% in the Sonadanga Residential Area, indicating a lower potential. The highest Pb, Fe, and bioavailable Fe concentrations were 62.0 µg g-1, 12450 µg g-1, and 132 µg g-1 in Shiromoni Industrial Area. Compared with other literary studies, this study concluded that the contamination levels of heavy metals in Khulna's road dust were comparatively high compared to other cities globally and within Bangladesh. The contamination factor (CF), enrichment factor (EF), and geo-accumulation index (Igeo) indicated that the extent of Pb contamination ranged from moderately to heavily contaminated. In contrast, the road dust was uncontaminated by Fe. The results of this research will enhance our comprehension of heavy metal levels in road dust, supporting policymakers in making well-informed choices to reduce health risks and safeguard the environment.
SN  - 2766-6190
UR  - https://doi.org/10.21926/aeer.2501008
DO  - 10.21926/aeer.2501008
ID  - Mahmud2025
ER  -